TPS77001, TPS77012, TPS77015, TPS77018, TPS77025
TPS77027, TPS77028, TPS77030, TPS77033, TPS77050 ULTRALOW-POWER 50-mA L...
TPS77001, TPS77012, TPS77015, TPS77018, TPS77025
TPS77027, TPS77028, TPS77030, TPS77033, TPS77050 ULTRALOW-POWER 50-mA LOW-DROPOUT LINEAR REGULATORS
SLVS210D – JUNE 1999 – REVISED MAY 2001
D 50-mA Low-Dropout Regulator D Available in 1.2-V, 1.5-V, 1.8-V, 2.5-V, 2.7-V,
2.8-V, 3.0-V, 3.3-V, and 5-V Fixed-Output and Adjustable Versions
D Only 17 µA Quiescent Current at 50 mA D 1 µA Quiescent Current in Standby Mode D Dropout
Voltage Typically 35 mV at 50 mA D Over Current Limitation D –40°C to 125°C Operating Junction
Temperature Range
D 5-Pin SOT-23 (DBV) Package
description
The TPS770xx family of low-dropout (LDO)
voltage regulators offers the benefits of low dropout
voltage, ultralow-power operation, and miniaturized packaging. These regulators feature low dropout
voltages and ultralow quiescent current compared to conventional LDO regulators. Offered in a 5-terminal small outline integrated-circuit SOT-23 package, the TPS770xx series devices are ideal for micropower operations and where board space is at a premium.
Ground Current – µ A
DBV PACKAGE (TOP VIEW)
IN
1
5
OUT
GND
2
EN
3
4
NC/FB
TPS77033 GROUND CURRENT
vs FREE-AIR TEMPERATURE
22
VI = 4.3 V 21 CO = 4.7 µF
20
19
IO = 50 mA
IO = 0 mA
18
17
A combination of new circuit design and process
16
innovation has enabled the usual PNP pass
transistor to be replaced by a PMOS pass element. Because the PMOS pass element
15 –60 –40 –20 0 20 40 60 80 100 120 140
behaves as a low-value resistor, the dropout...