TS4264G
5V/150mA Fixed-Voltage Ultra Low LDO
1/5 Version: A08
SOT-223
General Description
The TS4264GCW50 is a monolithic integrated low-drop fixed voltage regulator which can supply loads up to 150mA.
It is functional compatible to the TS4264GCW50 but has a reduced quiescent current of typ. 40µA. The
TS4264GCW50 is especially designed for all applications which are require very low quiescent currents. This ULDO
is designed to supply microprocessor systems under the severe condition of automotive applications and is therefore
equipped with additional protection against overload, short-circuit and over temperature. Of course the
TS4264GCW50 can be used in all other applications, wherever a stabilized voltage is required.
An input voltage in the range of 5.5V ~ 45V is regulated to VOUT= 5V with an accuracy of ±3%. An accuracy of ±2% is
kept for a load current range up to 50mA. The device operates in the temperature range of TJ = –40 ~150°C.
Part No.
Package
Packing
TS4264GCW50 RP
SOT-223
2.5Kpcs / 13” Reel
Features
● Fixed Output Voltage 5V
● Output Voltage Tolerance ±3%
● 150mA Current Capability
● Ultra Low Quiescent Current 40uA (Typ.)
● Over Temperature Protection
● Short-Circuit Proof
● Reverse Polarity Proof
● Wide Temperature Polarity Range
● Suitable for use in Automotive Electronics
Pin
Symbol
Function
1
Input
Block to ground directly on IC with
ceramic capacitor
2
Ground
Ground
3
Output
Block to ground with 10uF capacitor,
ESR < 4Ω
Block Diagram
Pin Definition:
1. Input
2. Ground (tab)
3. Output
TS4264G
5V/150mA Fixed-Voltage Ultra Low LDO
2/5 Version: A08
Absolute Maximum Rating
Limit Values
Parameter
Symbol
Min.
Max.
Unit
Notes
Input Voltage
VIN
-42
45
V
Input Voltage (Operating Range)
VIN (OPR)
5.5
45
V
Input Current
IIN
--
--
--
Internally Limited
Output Voltage
VOUT
-0.3
32
V
Output Current
IOUT
--
--
--
Internally Limited
Ground Current
IGND
50
--
mA
Junction Temperature
TJ
--
150
ºC
Junction Temperature (Operating Range)
TJ (OPR)
-40
150
ºC
Storage Temperature
TSTG
-50
150
ºC
Thermal Performance
Limit Values
Parameter
Symbol
Min.
Max.
Unit
Notes
Thermal Resistance Junction-Ambient
RΘJA
--
80
oC/W
Thermal Resistance Junction-Pin
RΘJP
--
17
oC/W
Note: Measured to pin 2 (tab)
Electrical Characteristics VIN=13.5V, -40≤ TJ ≤+150, unless otherwise specified.
Limit Values
Parameter
Symbol
Min.
Typ.
Max.
Unit
Notes
Output Voltage
VOUT
4.85
5.0
5.15
V
6V ≤ VIN ≤ 21V, 5mA ≤ Io ≤ 100mA
Output Voltage
VOUT
4.90
5.0
5.10
V
6V ≤ VIN ≤ 16V, 5mA ≤ Io ≤ 50mA
Output Current Limit
IOUT
150
200
500
mA
--
40
60
Io= 100uA, TJ ≤ 85ºC
--
40
70
uA
Io= 100uA
Current Consumption
IQ
--
1.7
4
mA
Io= 50mA
Dropout Voltage (Note)
VDROP
--
0.22
0.5
V
Io= 100mA
Load Regulation
REGLOAD
--
50
90
mV
5mA ≤ Io ≤ 100mA, VIN = 13.5V
Line Regulation
REGLINE
--
5
30
mV
6V ≤ VIN ≤ 28V, Io=1mA
Ripple Rejection
PSRR
--
68
--
dB
f = 100Hz, VR= 0.5VPP
Output Capacitor
COUT
10
--
--
uF
ESR ≤ 4Ω @ 10kHz
Note: Dropout voltage = VIN – VOUT
(Measured where VOUT has dropped 100mV from the nominal value obtained at VIN = 13.5V)
TS4264G
5V/150mA Fixed-Voltage Ultra Low LDO
3/5 Version: A08
Application Information
In the TS4264GCW50 the output voltage is divided and compared to an internal reference of 2.5V typical. The
regulation loop controls the output to achieve an output voltage of 5V with an accuracy of ±3% at an input voltage
range of 5.5V~45V.
Circuit Description
The control amplifier compares a reference voltage, which is kept highly precise by resistance adjustment, to a voltage
that is proportional to the output voltage and drives the base of the series transistor via a buffer. Saturation control,
working as a function of load current, prevents any over-saturation of the power element. The IC is additionally
protected against overload, over temperature and reverse polarity
Typical Application Circuit
Dimensioning Information on External Components
The input capacitor CIN is necessary for compensating line influences. Using a resistor of approx. 1Ω in series with CIN,
the oscillating of input inductivity and input capacitance can be clamped. The output capacitor COUT is necessary for the
stability of the regulating circuit. Stability is guaranteed at values COUT ≥10uF and an ESR ≤ 4Ω within the operating
temperature range.
The application circuit shows additional electrolytic input capacitor of 470uF is added in order to buffer supply line
influences. This capacitor is recommended, if the device is sourced via long supply lines of several meters.
The TS4264GCW50 can supply up to 150mA. However for protection for high input voltage above 25V, the output
current is reduced (SOA protection).
TS4264G
5V/150mA Fixed-Voltage Ultra Low LDO
4/5 Version: A08
SOT-223 Mechanical Drawing
Marking Diagram
Y
= Year Code
M
= Month Code
(A=Jan, B=Feb, C=Mar, D=Apl, E=May, F=Jun, G=Jul, H=Aug, I=Sep,
J=Oct, K=Nov, L=Dec)
L
= Lot Code
50
= 5V Fixed Output Voltage
SOT-223 DIMENSION
MILLIMETERS
INCHES
DIM
MIN
MAX
MIN
MAX
A
6.350
6.850
0.250
0.270
B
2.900
3.100
0.114
0.122
C
3.450
3.750
0.136
0.148
D
0.595
0.635
0.023
0.025
E
4.550
4.650
0.179
0.183
F
2.250
2.350
0.088
0.093
G
0.835
1.035
0.032
0.041
H
6.700
7.300
0.263
0.287
I
0.250
0.355
0.010
0.014
J
10°
16°
10°
16°
K
1.550
1.800
0.061
0.071
TS4264G
5V/150mA Fixed-Voltage Ultra Low LDO
5/5 Version: A08
Notice
Specifications of the products displayed herein are subject to change without notice. TSC or anyone on its behalf,
assumes no responsibility or liability for any errors or inaccuracies.
Information contained herein is intended to provide a product description only. No license, express or implied, to any
intellectual property rights is granted by this document. Except as provided in TSC’s terms and conditions of sale for
such products, TSC assumes no liability whatsoever, and disclaims any express or implied warranty, relating to sale
and/or use of TSC products including liability or warranties relating to fitness for a particular purpose, merchantability,
or infringement of any patent, copyright, or other intellectual property right.
The products shown herein are not designed for use in medical, life-saving, or life-sustaining applications. Customers
using or selling these products for use in such applications do so at their own risk and agree to fully indemnify TSC for
any damages resulting from such improper use or sale.