Preliminary July 4, 2003 Ver. 3
Low Power Consumption : 25 µA (TYP) Applications
Dropout Voltage : 60mV (IOUT=30mA) zMobile phones
200mV (IOUT=100mA) zCordless phones and radio communication equipment
Output Current : 150 mA (VOUT < 1.7V) zPortable games
240 mA ( VOUT ≥ 1.8V) zCameras, Video recorders
(300mA limit) zReference Voltage Source
Highly Accurate : ±2% (±30mV when VOUT=1.5V) zBattery Powered Equipment
Output Voltage Range : 0.9V ~ 5.0 V (50mV Step)
Low ESR capacitor compatible
General Description Features
Maximum Output Current : 150 mA (VOUT < 1.7V)
240 mA ( VOUT ≥ 1.8V)
(300mA limit)
Dropout Voltage : 200mV (IOUT=100mA)
Operating Voltage Range : 2.0V ~ 6.0V
Output Voltage Range : 0.9V ~ 5.0V (50mV Step)
Highly Accurate : ±2% (VOUT>1.5V)
: ±30mV (VOUT≤1.5V)
Low Power Consumption : 25 µA (TYP.)
Standby Current : Less than 0.1µA (TYP.)
High Ripple Rejection : 65dB (10kHz)
Operating Temperature Range : -40OC ~ +85OC
Low ESR Capacitor Compatible : Ceramic capacitor
Ultra Small Packages : SOT-23-5
Typical Applications
1
XC6211 Series Low ESR Cap. Compatible, On / Off Switch
High Speed LDO Regulator
The XC6211 series are highly accurate, low noise, CMOS LDO
Voltage Regulators. Offering low output noise, high ripple rejection
ratio, low dropout and very fast turn-on times, the XC6211 series
is ideal for today’s cutting edge mobile phone.
Internally the XC6211 includes a reference voltage source, error
amplifiers, driver transistors, current limiters and phase
compensators. The XC6211’s current limiters' foldback circuit also
operates as a short protect for the output current limiter and the
output pin.
The output voltage is set by laser trimming. Voltages are
selectable in 50mV steps within a range of 0.9V to 5.0V. The
XC6211 series is also fully compatible with low ESR ceramic
capacitors, reducing cost and improving output stability. This
high level of output stability is maintained even during frequent
load fluctuations, due to the excellent transient response
performance and high PSRR achieved across a broad range of
frequencies.
The CE function allows the output of regulator to be turned off,
resulting in greatly reduced power consumption.
The XC6211 series is available in the SOT-23-5 package.
VSS
1
2
34
5
VIN
VOUT
CE
NC
CIN
1µFCL
1µF
Preliminary
Pin Configuration Pin Assignment
Block Diagram
2
PIN NAME FUNCTION
On/Off Control 1
XC6211 Series High Speed LDO Regulator
Low ESR Cap. Compatible, On / Off Switch
VOUT1
VIN Output 1
CE Ground
No Connection
Power Input
VSS
PIN NUMBER
SOT-25
1
2
3
4
5
NC
SOT-23-5
(TOP VIEW)
45
12 3
VSS NCCE
VIN VOUT
Current
Limit
ON/OFF
Control
Voltage
Reference
each circuit
CE
VSS
VOUT
VIN
R2
R1
Preliminary
Product Classification
zSelection Guide
The following options for the CE pin logic and internal pull-up/down are available:
Active 'High' + no pull-down resistor built-in (standard)
Active 'High' + 2.0MΩ pull-down resistor built-in <between CE-VSS> (semi-custom)
Active 'Low' + no pull-up resistor built-in (semi-custom)
Active 'Low' + 2.0MΩ pull-up resistor built-in <between VIN-CE> (semi-custom)
Note: *With the pull-up resistor or pull-down resistor built-in types,
the supply current during operation will increase by VIN / 2.0MΩ (TYP.)
zOrdering Information XC6211123456
Absolute Maximum Rating
Ta = 25OC
3
Operating Ambient Temperature
OC
Storage Temperature -55 ~ +125
SYMBOL
IOUT
VOUT VSS -0.3 ~ VIN +0.3
250
Tstg
Output Current
Output Voltage
CE Pin Voltage
OC
V
mA
V
-40 ~ +85
VCE
Topr
XC6211 Series
R
C
D
2
DESIGNATOR SYMBOL
A
B
1
4
e.g. 2=2, 3=8, 4=A ⇒ 2.85V
2 3
e.g. 2=2, 3=8, 4=2 ⇒ 2.80V, ±2%
Output Voltage : 50mV increments, ±2% accuracy
A
e.g. 2=3, 3=0, ⇒ 3.0V
Output Voltage: 100mV increments, ±2% accuracy
L
DESCRIPTION
CE Pin Logic :
Active 'High' (pull-down resistor built in)
Active 'High' (no pull-down resistor built in)
Active 'Low' (pull-up resistor built in)
Active 'Low' (no pull-up resistor built in)
Output Voltage :
Integer
M SOT-25 (SOT-23-5)
Device Orientation :
Embossed Tape : Standard Feed
5
Power Dissipation Pd mW
VSS -0.3 ~ VIN +0.3
VIN
Embossed Tape : Reverse Feed
6
UNITSPARAMETER
Input Voltage RATINGS V7.0
500
High Speed LDO Regulator
Low ESR Cap. Compatible, On / Off Switch
Package Type :
Preliminary
Electrical Characteristics XC6211B Series Ta=25OC
NOTE *1 : 150mA (VOUT<1.7V), 240mA (VOUT≥1.8V)
(NOTE 1) VOUT(T)=Specified Output Voltage
(NOTE 2) VOUT(E)=Effective Output Voltage
(I.e. the output voltage when "VOUT(T)+1.0V" is provided at the VIN pin while maintaining a certain IOUT value).
(NOTE 3) Vdif={VIN1(NOTE5)-VOUT1(NOTE4)}
(NOTE 4) VOUT1=A voltage equal to 98% of the Output Voltage whenever an amply stabilized IOUT {VOUT(T)+1.0V} is input.
(NOTE 5) VIN1=The Input Voltage when VOUT1 appears as Input Voltage is gradually decreased.
(NOTE 6) Unless otherwise stated, VIN=VOUT(T)+1.0V
Dropout Voltage
* The input voltage 2.0V (Min.) is needed to operate the series. When the output voltage is less than 2.0V,
2.0V-VOUT(T) of dropout voltage is needed at minimum.
4
330240-1202.10 ~ 2.25 -
2.30 ~ 2.45
2.00 ~ 2.05
MIN TYP
1100 11000.90
200 200
1.50
380
1.60
280
550
TYP MAX
1110
MIN
1100
2
µA
E-2
Vdif 1
0.10
200210
-0.10
-0.10 0.10
MAX
VCE=VIN
VCE=VSS
µA
50 µA2
1
mA 1
V0.25 V
IDD VCE=VIN
PARAMETER SYMBOL
Output Voltage VOUT (E)
Load Regulation ∆VOUT
Low ESR Cap. Compatible, On / Off Switch
15
150
1mA≤IOUT≤100mA
High Speed LDO Regulator
CONDITIONS
IOUT=30mA
* 1
× 0.98
XC6211 Series
EN "Low" Current ICEL
EN "Low" Voltage VCEL
1
IOUT=100mA
Current Limiter
EN "High" Current ICEH
EN "High" Voltage VCEH
Short-circuit Current Ishort
Supply Current
VIN
0.01
2.0
VOUT(T)+1.0V≤VIN≤7.0V
IOUT=30mA
∆VOUT /
µA
0.01
V
% / V
6.0
0.20
× 1.02
UNITS
mA 1
Input Voltage
Line Regulation ∆VIN ⋅ VOUT
CIRCUIT
1
MIN MAX
V
TYP
VOUT(T)
2
Maximum Output Current IOUTMAX
Temperature Characteristics
∆VOUT /
∆Topr ⋅ VOUT
Output Voltage
dB
65
1VIN
mA300 1
Ilim
350
600
300
50
1200
400
E-1
150
-40OC≤Topr≤85OC
IOUT=50mA, f=10kHz
-
Ripple Rejection Rate PSRR
1.80 ~ 1.85
1.90 ~ 1.95 80
100
500
120 240
80
510
100
-
500500
120
1mV50
100 1
0.10
E-2
2
1150
-
ppm/
OC
2
4
Vdif 2
IOUT=30mA
mV
mV
Vdif2 25
Vdif1 E-1
IOUT=30mA
Standby Current Istby
Dropout Voltage
VCE=VSS
SYMBOL
2.80 ~ 2.95
3.00 ~ 3.05
3.10 ~ 3.95
4.00 ~ 4.95
5.00
-
-
-
-
-
-
-
2.50 ~ 2.75 80
70
70
60
60
60
50
120
100
100
90
90
80
70
-
-
-
240
200
160
-
-
-
-
310
220 290
220 270
270
200 250
180 230
210
PARAMETER
OUTPUT VOLTAGE
Preliminary
Test Circuits
Circuit 1
Circuit 2
Circuit 3
Circuit 4
5
XC6211 Series High Speed LDO Regulator
Low ESR Cap. Compatible, On / Off Switch
CIN=1.0µF
(ceramic)
V
VIN VOUT
VSS
CE
CL=1.0µF
(ceramic)
RL
A
V
V
VIN VOUT
VSS
CE
AOPEN
A
VIN VOUT
VSS
CE
CIN=1.0µF
(ceramic) CL=1.0µF
(ceramic)
F.F.T
IOUT=10mA
VIN VOUT
VSS
CE
CL=1.0µF
(ceramic)
V
IOUT=50mA
VIN={VOUT+1}V
DC
+0.5V
p-pAC
V
Preliminary
Operational Explanation
Output voltage control with the XC6211 series:
Low ESR Capacitors
Current Limiter, Short-Circuit Protection
CE Pin
Notes on Use
1 Please use this IC within the stated absolute maximum ratings.
The IC is liable to malfunction should the ratings be exceeded.
2 Where wiring impedance is high, operations may become unstable due to noise and/or phase lag
depending on output current. Please keep the resistance low between VIN and VSS wiring in particular.
3 Please wire the input capacitor (CIN) and the output capacitor (CL) as close to the IC as possible.
6
The voltage divided by resistors R1 & R2 is compared with the internal reference voltage by the error amplifier. The P-Channel
MOSFET, which is connected to the VOUT pin, is then driven by the subsequent output signal. The output voltage at the VOUT
pin is controlled and stabilized by a system of negative feedback. The current limit circuit and short protect circuit operate in
relation to the level of output current. Further, the IC's internal circuitry can be shutdown via the CE pin's signal.
With the XC6211 series, a stable output voltage is achievable even if used with low ESR capacitors as a phase
compensation circuit is built-in. In order to ensure the effectiveness of the phase compensation, we suggest that an
output capacitor (CL) is connected as close as possible to the output pin (VOUT) and the VSS pin. Please use an
output capacitor with a capacitance value of at least 1µF. Also, please connect an input capacitor (CIN) of 0.1µF
between the VIN pin and the VSS pin in order to ensure a stable power input.
The XC6211 series includes a combination of a fixed current limiter circuit & a foldback circuit which aid the
operations of the current limiter and circuit protection. When the load current reaches the current limit level, the
fixed current limiter circuit operates and output voltage drops. As a result of this drop in output voltage, the foldback
circuit operates, output voltage drops further and output current decreases. When the output pin is shorted, a
current of about 50mA flows.
The IC's internal circuitry can be shutdown via the signal from the CE pin with the XC6211 series. In shutdown
mode, output at the VOUT pin will be pulled down to the VSS level via R1 & R2. The operational logic of the IC's CE
pin is selectable (please refer to the selection guide on page 3). Note that as the standard XC6211B type's
regulator 1 and 2 are both ' High Active/No Pull Down', operations will become unstable with the CE pin open.
Although the CE pin is equal to an inverter input with CMOS hysteresis, with either the pull-up or pull-down options,
the CE pin input current will increase when the IC is in operation. We suggest that you use this IC with either a VIN
voltage or a VSS voltage input at the CE pin. If this IC is used with the correct specifications for the CE pin, the
operational logic is fixed and the IC will operate normally. However, supply current may increase as a result of
through current in the IC's internal circuitry.
XC6211 Series High Speed LDO Regulator
Low ESR Cap. Compatible, On / Off Switch
Current
Limit
ON/OFF
Control
Voltage
Reference
each circuit
CE
VSS
VOUT
VIN
R2
R1
Preliminary
! T
yp
ical Performance Characteristics
(1) Output Voltage vs. Output Current
7
XC6211 Series High Speed LDO Regulator
Low ESR Cap. Compatible, On / Off Switch
0.0
0.5
1.0
1.5
2.0
0 50 100 150 200 250 300 350 400
Output Current IOUT (mA)
Output Voltage VOUT (V)
CIN=1µF(ceramics), CL=1µF(ceramics)
XC6211x182
VIN=2.1V
VIN=4.8V
VIN=3.8V
VIN=2.8V
0.0
0.5
1.0
1.5
2.0
0 50 100 150 200 250 300 350 400
Output Current IOUT (mA)
Output Voltage VOUT (V)
VIN=2.8V,
CIN=1µF(Ceramic), CL=1µF(ceramic)
XC6211x182
0.0
0.5
1.0
1.5
2.0
2.5
3.0
0 50 100 150 200 250 300 350 400
Output Current IOUT (mA)
Output Voltage VOUT (V)
CIN=1µF(ceramics), CL=1µF(ceramics)
XC6211x252
VIN=2.8V
VIN=5.5V
VIN=3.5V
VIN=4.5V
0.0
0.5
1.0
1.5
2.0
2.5
3.0
0 50 100 150 200 250 300 350 400
Output Current IOUT (mA)
Output Voltage VOUT (V)
VIN=3.5V
CIN=1
µ
F
(
ceramics
)
, CL=1
µ
F
(
ceramics
)
XC6211x252
Topr = 85OC
25OC
- 40OC
0.0
0.5
1.0
1.5
2.0
2.5
3.0
3.5
4.0
0 50 100 150 200 250 300 350 400
Output Current IOUT (mA)
Output Voltage VOUT (V)
CIN=1µF
(
ceramic
)
, CL=1µF
(
ceramic
)
XC6211x302
VIN=6V
VIN=4V
VIN=5V
VIN=3.3V
0.0
0.5
1.0
1.5
2.0
2.5
3.0
3.5
4.0
0 50 100 150 200 250 300 350 400
Output Current IOUT (mA)
Output Voltage VOUT (V)
VIN=4.0V,
CIN=1
µ
F
(
ceramic
)
, CL=1
µ
F
(
ceramic
)
XC6211x302
Topr = 85OC
25OC
- 40OC
Topr = 85OC
25OC
- 40OC
Preliminary
(2) Output Voltage vs. Input Voltage
8
High Speed LDO Regulator
Low ESR Cap. Compatible, On / Off Switch
XC6211 Series
1.65
1.70
1.75
1.80
1.85
1.90
3.0 4.0 5.0 6.0
Input Voltage VIN (V)
Output Voltage VOUT (V)
XC6211x182
IOUT=0mA
=1mA
=30mA
1.0
1.2
1.4
1.6
1.8
2.0
1.3 1.8 2.3
Input Voltage VIN (V)
Output Voltage VOUT (V)
XC6211x182
IOUT=0mA
=1mA
=30mA
=100mA
2.35
2.40
2.45
2.50
2.55
2.60
3.0 3.5 4.0 4.5 5.0 5.5 6.0
Input Voltage VIN (V)
Output Voltage VOUT (V)
XC6211x252
IOUT=0mA
=1mA
=30mA
1.7
1.9
2.1
2.3
2.5
2.7
2 2.5 3
Input Voltage VIN (V)
Output Voltage VOUT (V)
XC6211x252
IOUT=0mA
=1mA
=30mA
=100mA
2.85
2.90
2.95
3.00
3.05
3.10
4.0 4.5 5.0 5.5 6.0
Input Voltage VIN (V)
Output Voltage VOUT (V)
XC6211x302
IOUT = 0mA
= 1mA
= 30mA
2.2
2.4
2.6
2.8
3.0
3.2
2.5 3 3.5
Input Voltage VIN (V)
Output Voltage VOUT (V)
XC6211x302
IOUT = 0mA
= 1mA
= 30mA
= 100mA
Topr=25OC,
CIN=1uF (ceramics), CL=1uF(ceramics) Topr=250C,
CIN=1uF (ceramics), CL=1uF(ceramics)
Topr=25OC,
CIN=1uF (ceramics), CL=1uF(ceramics) Topr=25OC,
CIN=1uF (ceramics), CL=1uF(ceramics)
Topr=25OC,
CIN=1uF (ceramics), CL=1uF(ceramics)
Topr=25OC,
CIN=1uF (ceramics), CL=1uF(ceramics)
Preliminary
(3) Dropout Voltage vs. Output Current
(4) Supply Current vs. Input Voltage
9
XC6211 Series High Speed LDO Regulator
Low ESR Cap. Compatible, On / Off Switch
0.0
0.2
0.4
0.6
0.8
1.0
0 40 80 120 160 200
Output Current IOUT (mA)
Dropout Voltage Vdif (V)
XC6211x182
0.0
0.2
0.4
0.6
0.8
1.0
0 40 80 120 160 200
Output Current IOUT (mA)
Dropout Voltage Vdif (V)
XC6211x252
0.0
0.2
0.4
0.6
0.8
1.0
0 40 80 120 160 200
Output Current IOUT (mA)
Dropout Voltage Vdif (V)
XC6211x302
0.0
10.0
20.0
30.0
40.0
50.0
0123456
Input Voltage VIN (V)
Supply Current ISS (µA)
XC6211x182
0.0
10.0
20.0
30.0
40.0
50.0
0123456
Input Voltage VIN (V)
Supply Current ISS (µA)
XC6211x252
Topr= 85OC
= 25OC
= -40OC
CIN=1uF (ceramics), CL=1uF(ceramics)
Topr= 85OC
= 25OC
= -40OC
Topr= 85OC
= 25OC
= -40OC
CIN=1uF (ceramics), CL=1uF(ceramics) CIN=1uF (ceramics), CL=1uF(ceramics)
Topr= 85OC
= 25OC
= -40OC
Topr= 85OC
= 25OC
= -40OC
Preliminary
(4) Supply Current vs. Input Voltage (Continued)
(5) Output Voltage vs. Ambient Temperature
10
XC6211 Series High Speed LDO Regulator
Low ESR Cap. Compatible, On / Off Switch
0.0
10.0
20.0
30.0
40.0
50.0
0123456
Input Voltage VIN (V)
Supply Current ISS (µA)
XC6211x302
1.60
1.65
1.70
1.75
1.80
1.85
1.90
-40 -20 0 20 40 60 80 100
Ambient Temperature Topr (OC)
Output Voltage VOUT (V)
XC6211x182
2.30
2.35
2.40
2.45
2.50
2.55
2.60
-40 -20 0 20 40 60 80 100
Ambient Temperature Topr (OC)
Output Voltage VOUT (V)
XC6211x252
2.80
2.85
2.90
2.95
3.00
3.05
3.10
-40 -20 0 20 40 60 80 100
Ambient Temperature Topr (OC)
Output Voltage VOUT (V)
XC6211x302
Topr= 85OC
= 25OC
= -40OC
VIN=4.0V
CIN=1uF (ceramics), CL=1uF(ceramics)
VIN=2.8V
CIN=1uF (ceramics), CL=1uF(ceramics)
IOUT = 0mA
1mA
30mA
100mA
VIN=3.2V
CIN=1uF (ceramics), CL=1uF(ceramics)
IOUT = 0mA
1mA
30mA
100mA
IOUT = 0mA
1mA
30mA
100mA
Preliminary
(6) Supply Current vs. Ambient Temperature
11
High Speed LDO Regulator
Low ESR Cap. Compatible, On / Off Switch
XC6211 Series
0.0
10.0
20.0
30.0
40.0
50.0
-40 -20 0 20 40 60 80 100
Ambient Temperature Topr (OC)
Supply Current ISS (µA)
VIN=2.8V
XC6211x182
0.0
10.0
20.0
30.0
40.0
50.0
-40 -20 0 20 40 60 80 100
Ambient Temperature Topr (OC)
Supply Current ISS (µA)
VIN=3.5V
XC6211x252
0.0
10.0
20.0
30.0
40.0
50.0
-40 -20 0 20 40 60 80 100
Ambient Temperature Topr (OC)
Supply Current ISS (µA)
VIN=4.0V
XC6211x302
Preliminary
(7) Input Transient Response
12
XC6211 Series High Speed LDO Regulator
Low ESR Cap. Compatible, On / Off Switch
-1
0
1
2
3
4
5
Time (40usec/div)
Input Voltage VIN (V)
1.76
1.78
1.80
1.82
1.84
1.86
1.88
Output Voltage VOUT (V)
XC6211x182
-1
0
1
2
3
4
5
Time (40usec/div)
Input Voltage VIN (V)
1.76
1.78
1.80
1.82
1.84
1.86
1.88
Output Voltage VOUT (V)
XC6211x182
-1
0
1
2
3
4
5
Time (40usec/div)
Input Voltage VIN (V)
1.76
1.78
1.80
1.82
1.84
1.86
1.88
Output Voltage VOUT (V)
X
C6
211x1
8
2
-1
0
1
2
3
4
5
Time (40usec/div)
Input Voltage VIN (V)
2.46
2.48
2.50
2.52
2.54
2.56
2.58
Output Voltage VOUT (V)
XC6211x252
-1
0
1
2
3
4
5
Time (40usec/div)
Input Voltage VIN (V)
2.46
2.48
2.50
2.52
2.54
2.56
2.58
Output Voltage VOUT (V)
X
C6
211x2
5
2
-1
0
1
2
3
4
5
Time (40usec/div)
Input Voltage VIN (V)
2.46
2.48
2.50
2.52
2.54
2.56
2.58
Output Voltage VOUT (V)
XC6211x252
tr = tf = 5use,
CL=1uF (ceramics), IOUT=1mA
tr = tf = 5use,
CL=1uF (ceramics), IOUT=1mA
Input Voltage
Output Voltage
tr = tf = 5use,
CL=1uF (ceramics), IOUT=10mA
Input Voltage
Output Voltage
tr = tf = 5use,
CL=1uF (ceramics), IOUT=100mA
Input Voltage
Output Voltage
Input Voltage
Output Voltage
tr = tf = 5use,
CL=1uF (ceramics), IOUT=10mA tr = tf = 5use,
CL=1uF (ceramics), IOUT=100mA
Input Voltage
Output Voltage
Input Voltage
Output Voltage
Preliminary
(7) Input Transient Response (Continued)
(8) Load Transient Response
13
XC6211 Series High Speed LDO Regulator
Low ESR Cap. Compatible, On / Off Switch
0
1
2
3
4
5
6
Time (40usec/div)
Input Voltage VIN (V)
2.96
2.98
3.00
3.02
3.04
3.06
3.08
Output Voltage VOUT (V)
XC6211x302
0
1
2
3
4
5
6
Time (40usec/div)
Input Voltage VIN (V)
2.96
2.98
3.00
3.02
3.04
3.06
3.08
Output Voltage VOUT (V)
X
C6211x302
0
1
2
3
4
5
6
Time (40usec/div)
Input Voltage VIN (V)
2.96
2.98
3.00
3.02
3.04
3.06
3.08
Output Voltage VOUT (V)
XC6211x302
1.4
1.5
1.6
1.7
1.8
1.9
2.0
Time (40usec/div)
Output Voltage VOUT (V)
0
50
100
150
200
250
300
Output Current IOUT (mA)
10mA
50mA
XC6211x182
1.4
1.5
1.6
1.7
1.8
1.9
2.0
Time (40usec/div)
Output Voltage VOUT (V)
0
50
100
150
200
250
300
Output Current IOUT (mA)
50mA
100mA
XC6211x182
VIN=2.8V, tr = tf = 5use,
CIN=1uF (ceramics), CL=1uF (ceramics)
Output Voltage
Output Current
VIN=2.8V, tr = tf = 5use,
CIN=1uF (ceramics), CL=1uF (ceramics)
Output Voltage
Output Current
tr = tf = 5use,
CL=1uF (ceramics), IOUT=1mA
Input Voltage
Output Voltage
tr = tf = 5use,
CL=1uF (ceramics), IOUT=10mA
Input Voltage
Output Voltage
tr = tf = 5use,
CL=1uF (ceramics), IOUT=100mA
Input Voltage
Output Voltage
Preliminary
(8) Load Transient Response (Continued)
14
High Speed LDO Regulator
Low ESR Cap. Compatible, On / Off Switch
XC6211 Series
1.4
1.5
1.6
1.7
1.8
1.9
2.0
Time (40usec/div)
Output Voltage VOUT (V)
0
50
100
150
200
250
300
Output Current IOUT (mA)
10mA
100mA
X
C6
211x1
8
2
2.1
2.2
2.3
2.4
2.5
2.6
2.7
Time (40usec/div)
Output Voltage OUT (V)
0
50
100
150
200
250
300
Output Current IOUT (mA)
10mA
50mA
XC6211x252
2.1
2.2
2.3
2.4
2.5
2.6
2.7
Time (40usec/div)
Output Voltage VOUT (V)
0
50
100
150
200
250
300
Output Current IOUT (mA)
10mA
100mA
XC6211x252
2.1
2.2
2.3
2.4
2.5
2.6
2.7
Time (40usec/div)
Output Voltage VOUT (V)
0
50
100
150
200
250
300
Output Current IOUT (mA)
50mA
100mA
X
C6
211x2
5
2
2.6
2.7
2.8
2.9
3.0
3.1
3.2
Time (40usec/div)
Output Voltage VOUT (V)
0
50
100
150
200
250
300
Output Current IOUT (mA)
10mA
50mA
XC6211x302
2.6
2.7
2.8
2.9
3.0
3.1
3.2
Time (40usec/div)
Output Voltage VOUT (V)
0
50
100
150
200
250
300
Output Current IOUT (mA)
50mA
100mA
XC6211x302
VIN=3.5V, tr = tf = 5use,
CIN=1uF (ceramics), CL=1uF (ceramics)
VIN=4.0V, tr = tf = 5use,
CIN=1uF (ceramics), CL=1uF (ceramics)
Output Voltage
Output Current
Output Voltage
Output Current
VIN=2.8V, tr = tf = 5use,
CIN=1uF (ceramics), CL=1uF (ceramics)
Output Voltage
Output Current
VIN=4.0V, tr = tf = 5use,
CIN=1uF (ceramics), CL=1uF (ceramics)
Output Voltage
Output Current
VIN=3.5V, tr = tf = 5use,
CIN=1uF (ceramics), CL=1uF (ceramics)
Output Voltage
Output Current
VIN=3.5V, tr = tf = 5use,
CIN=1uF (ceramics), CL=1uF (ceramics)
Output Voltage
Output Current
Preliminary
(8) Load Transient Response (Continued)
(9) Ripple Rejection Rate
15
XC6211 Series High Speed LDO Regulator
Low ESR Cap. Compatible, On / Off Switch
2.6
2.7
2.8
2.9
3.0
3.1
3.2
Time (40usec/div)
Output Voltage VOUT (V)
0
50
100
150
200
250
300
Output Current IOUT (mA)
10mA
100mA
XC6211x302
0
10
20
30
40
50
60
70
80
90
100
0.01 0.1 1 10 100
Ripple Frequency f (kHz)
Ripple Rejection Rate RR (dB)
XC6211x302
0
10
20
30
40
50
60
70
80
90
100
0.01 0.1 1 10 100
Ripple Frequency f (kHz)
Ripple Rejection Rate RR (dB)
XC6211x252
0
10
20
30
40
50
60
70
80
90
100
0.01 0.1 1 10 100
Ripple Frequency f (kHz)
Ripple Rejection Rate RR (dB)
XC6211x182
VIN=4.0V, tr = tf = 5use,
CIN=1uF (ceramics), CL=1uF (ceramics)
Output Voltage
Output Current
VIN=2.8V, DC + Vp-pAC,
IOUT=50mA, CL=1uF (ceramics) VIN=3.5V, DC + Vp-pAC,
IOUT=50mA, CL=1uF (ceramics)
VIN=3.0V, DC + Vp-pAC,
IOUT=50mA, CL=1uF (ceramics)
