TPS76615, TPS76618, TPS76625, TPS76627
TPS76628, TPS76630, TPS76633, TPS76650, TPS76601
ULTRA LOW QUIESCENT CURRENT 250-mA LOW-DROPOUT VOLTAGE REGULATORS
SLVS237 – AUGUST 1999
D
D
D
D
D
D
D
D
250-mA Low-Dropout Voltage Regulator
Available in 1.5-V, 1.8-V, 2.5-V, 2.7-V, 2.8-V,
3.0-V, 3.3-V, 5.0-V Fixed Output and
Adjustable Versions
Dropout Voltage to 140 mV (Typ) at 250 mA
(TPS76650)
Ultra-Low 35-µA Typical Quiescent Current
3% Tolerance Over Specified Conditions for
Fixed-Output Versions
Open Drain Power Good
8-Pin SOIC Package
Thermal Shutdown Protection
D PACKAGE
(TOP VIEW)
NC/FB
PG
GND
EN
1
2
3
4
8
7
6
5
OUT
OUT
IN
IN
description
This device is designed to have an ultra-low quiescent current and be stable with a 4.7-µF capacitor. This
combination provides high performance at a reasonable cost.
Because the PMOS device behaves as a low-value resistor, the dropout voltage is very low (typically 230 mV
at an output current of 250 mA for the TPS76650) and is directly proportional to the output current. Additionally,
since the PMOS pass element is a voltage-driven device, the quiescent current is very low and independent
of output loading (typically 35
µA
over the full range of output current, 0 mA to 250 mA). These two key
specifications yield a significant improvement in operating life for battery-powered systems. This LDO family
also features a sleep mode; applying a TTL high signal to EN (enable) shuts down the regulator, reducing the
quiescent current to less than 1
µA
(typ).
TPS76633
TPS76633
DROPOUT VOLTAGE
vs
FREE-AIR TEMPERATURE
100
VI = 3.2 V
IO = 250 mA
I GND – Ground Current –
µ
A
V DO – Output Voltage – V
35.0
34.9
34.8
34.7
34.6
34.5
34.4
34.3
34.2
34.1
10–3
–50
–25
0
25
50
75
100
125
150
TA – Free-Air Temperature –
°C
34
0
25
50
VO = 3.3 V
TA = 25°C
GROUND CURRENT
vs
LOAD CURRENT
10–1
IO = 50 mA
IO = 150 mA
10–2
IO = 10 mA
75 100 125 150 175 200 225 250
IL – Load Current – mA
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
Copyright
©
1999, Texas Instruments Incorporated
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of Texas Instruments
standard warranty. Production processing does not necessarily include
testing of all parameters.
POST OFFICE BOX 655303
•
DALLAS, TEXAS 75265
1
TI [ TEXAS INSTRUMENTS ]
