MAX5087BATE/V+ - Maxim

General Description

The MAX5087 high-voltage linear regulator operates

from an input voltage of 6.5V to 45V and delivers up to

400mA of output current. The device consumes only

70µA of quiescent current with no load and 11µA in

shutdown. The device includes a SET input, that when

connected to ground, selects a preset output voltage of

3.3V (MAX5087A) or 5.0V (MAX5087B). Alternatively,

the output voltage can be adjusted from 2.5V to 11V by

simply connecting SET to the regulator’s output through

a resistive divider network. The MAX5087 also provides

an open-drain, active-low microprocessor (µP) reset

output that asserts when the regulator output drops

below the preset output voltage threshold. An external

capacitor programs the reset timeout period. Other fea-

tures include an enable input, thermal shutdown, and

short-circuit protection.

The MAX5087 operates over the automotive tempera-

ture range of -40°C to +125°C and is available in a 16-

pin TQFN thermally enhanced package.

Applications

Automotive

Industrial

Home Security/Safety

Networking

Features

♦Wide Operating Input Voltage Range (6.5V to 45V)

♦Thermally Enhanced Package Dissipates

2.6W at TA= +70°C (16-Pin TQFN)

♦Guaranteed 400mA Output Current

♦70µA Quiescent Supply Current

♦Preset 3.3V, 5.0V, or Adjustable 2.5V to 11V

Output Voltage

♦Remote Load Sense Capability

♦Enable Input

♦Integrated µP Reset Circuit with Programmable

Timeout Period

♦Thermal and Short-Circuit Protection

♦-40°C to +125°C Operating Temperature Range

MAX5087

45V, 400mA, Low-Quiescent-Current

Linear Regulator with Adjustable Reset Delay

________________________________________________________________ Maxim Integrated Products 1

12 11 10 9

OUT

OUTSENSE

GND

TOP VIEW

N.C.

1234

N.C.

MAX5087

N.C.

RESET

SET

TQFN

Pin Configuration

Ordering Information

19-3964; Rev 3; 2/08

For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642,

or visit Maxim’s website at www.maxim-ic.com.

PART PIN-

PACKAGE

PKG

CODE

OUTPUT

VOLTAGE (V)

MAX5087AATE+ 16 TQFN-EP* T1655-2 3.3

MAX5087BATE+ 16 TQFN-EP* T1655-2 5.0

Note: All devices are specified over the -40°C to +125°C oper-

ating temperature range.

*EP = Exposed paddle.

+Denotes lead-free package.

MAX5087

45V, 400mA, Low-Quiescent-Current

Linear Regulator with Adjustable Reset Delay

2 _______________________________________________________________________________________

ABSOLUTE MAXIMUM RATINGS

ELECTRICAL CHARACTERISTICS

(VIN = 14V, IOUT = 1mA, CIN = 47µF (low ESR), COUT = 15µF, VEN = 2.4V, 10kΩfrom RESET to OUT, TA= TJ= -40°C to +125°C,

unless otherwise noted. Typical specifications are at TA= +25°C.) (Note 2)

Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional

operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to

absolute maximum rating conditions for extended periods may affect device reliability.

IN to GND (do not exceed package power

dissipation) .........................................................-0.3V to +50V

IN to GND (T ≤300ms, IOUT ≤250mA) ..................-0.3V to +42V

EN to GND..............................................................-0.3V to +50V

RESET, OUT, OUTSENSE to GND .........................-0.3V to +12V

IN to OUT................................................................-0.3V to +50V

CT, SET TO GND....................................................-0.3V to +35V

Short-Circuit Duration (VIN ≤14V)..............................Continuous

Maximum Current into Any Pin (Except IN, OUT).............±20mA

Continuous Power Dissipation (TA= +70°C)

16-Pin TQFN (derate 33.3mW/°C above +70°C)......2666mW*

Thermal Resistance (Note 1)

θJA, 16-Pin TQFN ......................................................30.0°C/W

θJC, 16-Pin TQFN ...........................................................2°C/W

Operating Temperature Range .........................-40°C to +125°C

Junction Temperature......................................................+150°C

Storage Temperature Range .............................-60°C to +150°C

Lead Temperature (soldering, 10s) .................................+300°C

PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS

Input Voltage Range VIN VIN ≥ VOUT + 1.5V 6.5 45.0 V

IOUT = 0 70 150

Supply Current IQMeasured at GND,

SET = GND IOUT = 400mA 5300 µA

Shutdown Supply Current ISHDN VEN ≤ 0.4V 11 21 µA

REGULATOR

Guaranteed Output Current IOUT VIN = 6.5V, VOUT = 5.0V 400 mA

6.5V ≤ VIN ≤ 25V,

5mA ≤ IOUT ≤ 400mA 4.87 5 5.13

SET = GND,

5V version 6.5V ≤ VIN ≤ 45V,

5mA ≤ IOUT ≤ 100mA 4.850 5 5.150

6.5V ≤ VIN ≤ 25V,

5mA ≤ IOUT ≤ 400mA 3.208 3.3 3.392

SET = GND,

3.3V version 6.5V ≤ VIN ≤ 45V,

5mA ≤ IOUT ≤ 100mA 3.208 3.3 3.392

Output Voltage (Note 3) VOUT

IOUT = 5mA, adjustable range 2.5 11.0

Dropout Voltage ΔVDO IOUT = 400mA, VOUT = 5V (Note 4) 0.9 2.2 V

Startup Response Time Rising edge of VIN to VOUT,

RL = 500Ω, SET = GND (Note 5) 400 µs

5V version -1 +1

Line Regulation ΔVOUT /

ΔVIN 8V ≤ VIN ≤ 45V 3.3V version -0.5 +0.5 mV/V

VEN = high, regulator on 2.4

Enable Voltage VEN VEN = low, regulator off 0.4 V

Note 1: Package thermal resistances were obtained using the method described in JEDEC specification JESD51-7 using a four-

layer board. For detailed information on thermal considerations, refer to www.maxim-ic.com/thermal-tutorial.

MAX5087

45V, 400mA, Low-Quiescent-Current

Linear Regulator with Adjustable Reset Delay

_______________________________________________________________________________________ 3

Note 2: Limits at TA= -40°C are guaranteed by design.

Note 3: Output voltage is tested using a pulsed load current of less than 50ms duration.

Note 4: Dropout voltage is defined as (VIN - VOUT) when VOUT is 100mV below the value of VOUT for VIN = VOUT + 3V.

Note 5: Startup time measured from 50% of VIN to 90% of VOUT.

Note 6: Continuous short-circuit protection for VIN > 14V not guaranteed.

ELECTRICAL CHARACTERISTICS (continued)

(VIN = 14V, IOUT = 1mA, CIN = 47µF (low ESR), COUT = 15µF, VEN = 2.4V, 10kΩfrom RESET to OUT, TA= TJ= -40°C to +125°C,

unless otherwise noted. Typical specifications are at TA= +25°C.) (Note 2)

PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS

VEN = 2.4V 0.35

Enable Input Current IEN VEN = 14V 3.4 µA

SET Reference Voltage VSET 1.200 1.235 1.260 V

SET Input Leakage Current ISET -100 +0.5 +100 nA

Load Regulation ΔVOUT /

ΔIOUT IOUT = 1mA to 400mA (Note 3) 0.1 0.35 Ω

Power-Supply Rejection Ratio PSRR IOUT = 10mA, f = 100Hz, 500mVP-P,

VOUT = 5V 70 dB

Short-Circuit Current ISC VIN < 14V (Note 6) 640 mA

Thermal Shutdown Temperature TJ

(

SHDN

)

175 °C

Thermal Shutdown Hysteresis ΔTJ

(

SHDN

)

25 °C

RESET Voltage Threshold VRESET 89 92 94 % VOUT

RESET Threshold Hysteresis VRHYST 2% V

OUT

RESET Output Low Voltage VRL ISINK = 1mA 0.4 V

RESET Output Leakage Current IRH VRESET = 5V 1 µA

RESET Output Minimum Timeout

Period

When VOUT reaches RESET threshold,

CCT = Open 15 µs

ENABLE to RESET Minimum

Timeout Period When EN goes high, CCT = open 170 µs

Delay Comparator Threshold

(Rising) 1.196 1.230 1.264 V

Delay Comparator Threshold

Hysteresis 100 mV

CT Charge Current 124µA

CT Discharge Current 5mA

MAX5087

45V, 400mA, Low-Quiescent-Current

Linear Regulator with Adjustable Reset Delay

4 _______________________________________________________________________________________

Typical Operating Characteristics

(VIN = VEN = 14V, CIN = 47µF (low ESR), COUT = 15µF, VOUT = 5V, SET = GND, TA= +25°C, unless otherwise specified.)

OUTPUT VOLTAGE vs.

INPUT VOLTAGE

MAX5087 toc01

VIN (V)

VOUT (V)

4515 20 25 30 35 40510

0.5

1.0

1.5

2.0

2.5

3.0

3.5

4.0

4.5

5.0

5.5

IOUT = 0

NO-LOAD SUPPLY CURRENT

vs. TEMPERATURE

MAX5087 toc02

TEMPERATURE (°C)

IGND (μA)

11095-25 -10 5 35 50 6520 80

100

110

120

-40 125

VIN = +45V

VIN = +14V

VIN = +6.5V

SHUTDOWN SUPPLY CURRENT

vs. TEMPERATURE

MAX5087 toc03

TEMPERATURE (°C)

ISHDN (μA)

12511080 95-10 5 20 35 50 65-25

-40 140

OUTPUT VOLTAGE

vs. TEMPERATURE

MAX5087 toc04

TEMPERATURE (°C)

VOUT (V)

12511080 95-10 5 20 35 50 65-25

4.80

4.85

4.90

4.95

5.00

5.05

5.10

5.15

5.20

5.25

4.75

-40 140

IOUT = 5mA

GROUND CURRENT

vs. TEMPERATURE (PULSED LOAD)

MAX5087 toc05

TEMPERATURE (°C)

IGND (mA)

1251109580655035205-10-25

-40 140

VIN = +6.5V

IOUT = 50mA IOUT = 100mA

IOUT = 400mA

OUTPUT VOLTAGE

vs. LOAD CURRENT AND TEMPERATURE

MAX5087 toc06

TEMPERATURE (°C)

VOUT (V)

12511080 95-10 5 20 35 50 65-25

4.80

4.85

4.90

4.95

5.00

5.05

5.10

5.15

5.20

5.25

4.75

-40 140

VIN = +6.5V

IOUT = 100mA

IOUT = 50mA

IOUT = 400mA

DROPOUT VOLTAGE

vs. LOAD CURRENT

MAX5087 toc07

IOUT (mA)

VDROPOUT (V)

350300200 25050 100 150

0.15

0.30

0.45

0.60

0.75

0.90

1.05

1.20

1.35

1.50

0 400

VOUT = +5V

POWER-SUPPLY REJECTION RATIO

vs. FREQUENCY

MAX5087 toc08

FREQUENCY (kHz)

PSRR (dB)

100101

-70

-60

-50

-40

-30

-20

-10

-80

0.1 1000

COUT = 15μF

IOUT = 10mA

LOAD-TRANSIENT RESPONSE

MAX5087 toc09

400μs/div

VOUT

200mV/div

AC-COUPLED

IOUT

200mA/div

5mA

400mA

IOUT = 5mA

MAX5087

45V, 400mA, Low-Quiescent-Current

Linear Regulator with Adjustable Reset Delay

_______________________________________________________________________________________ 5

INPUT VOLTAGE STEP RESPONSE

MAX5087 toc10

400μs/div

VOUT

AC-COUPLED

500mV/div

26V

6.5V

VIN

10V/div

IOUT = 50mA

STARTUP RESPONSE

MAX5087 toc11

400μs/div

VOUT

2V/div

VIN

10V/div

IOUT = 5mA

ENABLE STARTUP RESPONSE

MAX5087 toc12

100μs/div

1V/div

VOUT

2V/div

VIN = 14V

IOUT = 0

ENABLE STARTUP RESPONSE

MAX5087 toc13

100μs/div

1V/div

VOUT

2V/div

VIN = 14V

IOUT = 400mA

ENABLE STARTUP RESPONSE

MAX5087 toc14

100μs/div

1V/div

VOUT

2V/div

VIN = 45V

IOUT = 0

ENABLE STARTUP RESPONSE

MAX5087 toc15

100μs/div

1V/div

VOUT

2V/div

VIN = 45V

IOUT = 400mA

SHUTDOWN RESPONSE

MAX5087 toc16

20ms/div

1V/div

VOUT

2V/div

IOUT = 5mA

GROUND CURRENT DISTRIBUTION

(TA = -40°C)

MAX5087 toc17

IGND (μA)

NUMBER OF UNITS

656454 55 56 57 58 60 61 6259 63

51 52 53

150 UNITS

TESTED

GROUND CURRENT DISTRIBUTION

(TA = +125°C)

MAX5087 toc18

IGND (μA)

NUMBER OF UNITS

74 75 767363 65 66 68 69 7067 7271

150 UNITS

TESTED

Typical Operating Characteristics (continued)

(VIN = VEN = 14V, CIN = 47µF (low ESR) COUT = 15µF, VOUT = 5V, SET = GND, TA= +25°C, unless otherwise specified.)

MAX5087

45V, 400mA, Low-Quiescent-Current

Linear Regulator with Adjustable Reset Delay

6 _______________________________________________________________________________________

Pin Description

PIN NAME FUNCTION

1, 12–16 N.C. No Connection. Not internally connected.

2ENE nab l e Inp ut. D r i ve E N hi g h to tur n on the r eg ul ator . For ce E N l ow to p l ace the d evi ce i n shutd ow n m od e.

3, 4 IN Regulator Input. Supply voltage ranges from 6.5V to 45V. Bypass IN to GND with a low-ESR 47µF

electrolytic capacitor.

5, 6 OUT Regulator Output. Connect at least a 15µF low-ESR capacitor from OUT to GND.

OUTSENSE

Regulator Output Feedback Point. OUTSENSE must be connected to OUT for fixed output voltage

versions. Leave OUTSENSE open for adjustable output voltage version.

8 GND Ground

9 SET

Feedback Regulation Set Point. Connect SET to GND for a fixed 3.3V output (MAX5087A) or 5.0V

output (MAX5087B). Connect an external resistive divider network from OUTSENSE to SET to GND to

adjust the output voltage from 2.5V to 11V.

10 RESET Open-Drain Active-Low Reset Output. Connect a 10kΩ pullup resistor from RESET to any supply

voltage up to 11V to create a logic output.

11 CT Reset Timeout Setting Connection. A 2µA charging current is available at CT. Connect a capacitor

from CT to GND to set the reset timeout period (see the Adjustable Reset Timeout Period (CT) section).

—EP

Exposed Paddle. Connect externally to a large ground plane to aid heat dissipation. Do not use EP as

a ground connection.

MAX5087

45V, 400mA, Low-Quiescent-Current

Linear Regulator with Adjustable Reset Delay

_______________________________________________________________________________________ 7

MAX5087

ERROR

AMPLIFIER

OUT

SET

RESET

GND

OUTSENSE

CONTROL LOGIC,

THERMAL SHUTDOWN,

AND

OVERCURRENT

PROTECTION

MUX

2μA

DELAY

COMPARATOR

0.92 x VREF

VREF

1.235V

INTERNAL

SUPPLY VOLTAGE

Figure 1. Functional Diagram

Detailed Description

The MAX5087 high-voltage linear regulator includes an

integrated µP reset circuit with an adjustable reset time-

out period (see the Adjustable Reset Timeout Period

(CT) section). The device guarantees a 400mA load

current and is available with a preset output voltage of

3.3V (MAX5087A) or 5V (MAX5087B). Both devices can

be configured to provide an adjustable output voltage

from 2.5V to 11V. The internal reset circuit monitors the

regulator output voltage and asserts RESET low when the

regulator output falls below the reset threshold voltage.

Other features include an enable (regulator control input),

21µA (max) shutdown current, short-circuit protection

(see the Output Short-Circuit Current Limit section), and

thermal shutdown (see the Thermal Protection section).

Regulator

The MAX5087 accepts an input voltage range from

6.5V to 45V and offers a fixed output voltage of 3.3V or

5V. For an adjustable output voltage operation, use an

external resistive divider network connected between

OUT, SET, and GND (see Figure 2).

Enable Input (EN)

EN is a logic-level enable input that turns the device

on/off. Drive EN high to turn on the device and drive EN

low to place the device in shutdown. The MAX5087

draws 11µA (typ) of supply current when in shutdown.

EN withstands voltages up to +45V, allowing EN to be

connected to IN for an always-on operation.

Remote Sensing (OUTSENSE)

The 3.3V (MAX5087A) and 5V (MAX5087B) output volt-

age versions connect OUTSENSE for load voltage

sensing. Leave OUTSENSE open when using

adjustable output voltage version.

Reset Output (

RESET

)

A supervisor circuit is fully integrated in the MAX5087

and uses the same reference voltage as the regulator.

RESET goes low if VOUT drops below the preset output

voltage threshold, and remains low at least for the time-

out period after VOUT rises above the reset voltage

threshold.

Adjustable Reset Timeout Period (CT)

The MAX5087 features a user-adjustable reset timeout.

Connect a capacitor from CT to GND to set the reset

timeout period (see Figure 2) and use the following

equation to calculate the timeout period:

tRP = CCT x 0.6175 x 106(s)

where CCT is the value of the external capacitor con-

nected from CT to GND.

Thermal Protection

When the junction temperature exceeds TJ= +175°C,

an internal thermal sensor signals the shutdown logic,

which turns off the pass transistor, allowing the IC to

cool. The thermal sensor turns the pass transistor on

again after the IC’s junction temperature cools by 25°C,

resulting in a cycled output during continuous thermal-

overload conditions. Thermal protection protects the

MAX5087 in the event of fault conditions. During contin-

uous operation, do not exceed the absolute maximum

junction temperature rating of TJ= +150°C.

Output Short-Circuit Current Limit

The MAX5087 features a current limit. The output can

be shorted to GND for an indefinite period of time (for

VIN < 14V) without damage to the device. Continuous

output short-circuit protection is only guaranteed for

VIN < 14V.

MAX5087

45V, 400mA, Low-Quiescent-Current

Linear Regulator with Adjustable Reset Delay

8 _______________________________________________________________________________________

6.5V TO 45V 2.5V TO 11V

47μF

CCT

15μF

OUT

OFF OUTSENSE

SET

VOUT = VSET (1 + R1 / R2)

VSET = 1.235V

TO μPRESET

GND

MAX5087

Figure 2. Setting the Adjustable Output Voltage

MAX5087

45V, 400mA, Low-Quiescent-Current

Linear Regulator with Adjustable Reset Delay

_______________________________________________________________________________________ 9

Applications Information

Output-Voltage Selection

The MAX5087 features a Dual ModeTM operation, in

either a preset-voltage mode or an adjustable mode. In

preset-voltage mode, internal feedback resistors set

the MAX5087’s output voltage to +3.3V or +5V. Select

preset-voltage mode by connecting SET to ground. In

adjustable mode, select an output between +2.5V and

+11V using two external resistors connected as a volt-

age-divider to SET (Figure 2). Set the output voltage

using the following equation:

where VSET = 1.235V and R2 is chosen to be < 100kΩ.

Available Output-Current Calculation

The MAX5087 high-voltage regulator provides up to

400mA of output current. The input voltage extends to

+45V. Package power dissipation limits the amount of

output current available for a given input/output voltage

and ambient temperature. Figure 3 shows the maxi-

mum power dissipation curve for these devices. The

graph assumes that the exposed paddle of the MAX5087

package is set up per JEDEC 51 (multilayer board)

specifications.

Use Figure 3 to determine the allowable package dissi-

pation (PD) for a given ambient temperature.

Alternately, use the following formulas to calculate the

allowable package dissipation. Note that for the exam-

ples shown below, the electrical characteristic limits are

guaranteed up to TJ= +125°C (max).

After determining the allowable package dissipation

calculate the maximum output current using the follow-

ing formula:

The above equations do not include the negligible

power dissipation from self-heating due to the IC

ground current.

Example 1:

TA= +95°C

VIN = +14V

VOUT = +5V

Find the maximum allowable output current. First calcu-

late package dissipation at the given temperature as

follows:

Then determine the maximum output current:

Example 2:

TA= +125°C

VIN = +14V

VOUT = +5V

I(1.8335W)

(14V) (5V) 203mA

OUT(MAX) =−=

P 2.666W 0.0333 W

C(95 C 70 C) 1.8335W

D =−

°°−° =

VV 4 0mA

OUT(MAX) D

IN OUT

≅−≤ 0

W for T C

Cx T C for C T C

. . ( )

≤+ °

−°−° +°< ≤+°

⎧

⎨

⎪

⎩

⎪

⎫

⎬

⎪

⎭

⎪

2 666 70

2 666 0 0333 70 70 125

VVx

OUT SET

⎛

⎝

⎜⎞

⎠

⎟

MAX5087 fig03

TEMPERATURE (°C)

PD (W)

12020 60 80 10040

0.5

1.0

1.5

2.0

2.5

3.0

3.5

4.0

0 140

2.666W

(16-PIN TQFN)

DERATE

33.3mW/°C

Figure 3. Calculated Maximum Power Dissipation vs.

Temperature

Dual Mode is a trademark of Maxim Integrated Products, Inc.

MAX5087

45V, 400mA, Low-Quiescent-Current

Linear Regulator with Adjustable Reset Delay

10 ______________________________________________________________________________________

Calculate package dissipation at the given temperature

as follows:

And establish the maximum current:

Example 3:

TA= +50°C

VIN = +14V

VOUT = +10V

Calculate package dissipation at the given temperature

as follows:

PD= 2.666W

And find the maximum output current:

In example 3 the maximum output current is calculated

as 666mA, however, the maximum output current can-

not exceed 400mA.

Use Figure 4 to quickly determine maximum allowable out-

put current for selected ambient temperatures.

Output-Capacitor Selection and

Regulator Stability

For stable operation over the full temperature range

and with load currents up to 400mA, use a 15µF (min)

output capacitor with an ESR < 0.25Ω. To reduce noise

and improve load-transient response, stability, and

power-supply rejection use larger output capacitor val-

ues such as 22µF.

Some ceramic capacitor dielectrics exhibit large

capacitance and ESR variation with temperature. For

capacitor dielectrics such as Y5V, use 22µF or more to

ensure stability at temperatures below -10°C. With X7R

or X5R dielectrics, 15µF should be sufficient at all oper-

ating temperatures. To improve power supply rejection

and transient response, use a minimum 47µF low-ESR

capacitor from IN to GND.

I(2.666W)

(14V) (10V) mA I 4 0mA

OUT(MAX) OUT(MAX)

=−=⇒ =666 0

I(1.191W)

(14V) (5V) mA

OUT(MAX) .=−=92 7

P 2.666W 0.0333 W

C(125 C 70 C) 0 W

D .=−

°°−° = 8345

Chip Information

PROCESS: BiCMOS

MAX5087 fig04

VIN (V)

IOUT(MAX) (A)

454035302520151050

VOUT = +5V

TA = +70°C

TA = +85°C

TA = +125°C

0.25

0.20

0.15

0.10

0.05

0.30

0.35

0.40

0.45

0.50

Figure 4. Maximum Output Current vs. Input Voltage (16-Pin

TQFN)

MAX5087

45V, 400mA, Low-Quiescent-Current

Linear Regulator with Adjustable Reset Delay

______________________________________________________________________________________ 11

QFN THIN.EPS

Package Information

(The package drawing(s) in this data sheet may not reflect the most current specifications. For the latest package outline information,

go to www.maxim-ic.com/packages.)

MAX5087

45V, 400mA, Low-Quiescent-Current

Linear Regulator with Adjustable Reset Delay

12 ______________________________________________________________________________________

Package Information (continued)

(The package drawing(s) in this data sheet may not reflect the most current specifications. For the latest package outline information,

go to www.maxim-ic.com/packages.)

MAX5087

45V, 400mA, Low-Quiescent-Current

Linear Regulator with Adjustable Reset Delay

Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are

implied. Maxim reserves the right to change the circuitry and specifications without notice at any time.

Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600 ____________________ 13

Revision History

REVISION

NUMBER

REVISION

DATE DESCRIPTION PAGES

CHANGED

0 2/06 Initial release —

1 4/06 Updated Ordering Information and Electrical Characteristics tables. 1–3

2 7/06 Updated Electrical Characteristics table. 2

3 2/08 Corrected errors in data sheet, reduced operating range, and removed

products from Ordering Information table. 1–13