Datasheet

TPS78915, TPS78918, TPS78925, TPS78928, TPS78930
ULTRALOW-POWER LOW-NOISE 100-mA
LOW-DROPOUT LINEAR REGULATORS
SLVS300A – SEPTEMBER 2000 – REVISED MAY 2001
2
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
description (continued)
The TPS789xx also features a logic-enabled sleep mode to shut down the regulator, reducing quiescent current
to 1 µA typical at T
J
= 25°C. The TPS789xx is offered in 1.5 V, 1.8 V, 2.5 V, 2.8 V, and 3.0 V.
AVAILABLE OPTIONS
T
J
VOLTAGE PACKAGE PART NUMBER SYMBOL
1.5 V TPS78915DBVT
†
TPS78915DBVR
‡
PDWI
1.8 V
SOT 23
TPS78918DBVT
†
TPS78918DBVR
‡
PDXI
–40°C to 125°C
2.5 V
SOT-23
(DBV)
TPS78925DBVT
†
TPS78925DBVR
‡
PDYI
2.8 V
(DBV)
TPS78928DBVT
†
TPS78928DBVR
‡
PDZI
3.0 V TPS78930DBVT
†
TPS78930DBVR
‡
PEAI
†
The DBVT indicates tape and reel of 250 parts.
‡
The DBVR indicates tape and reel of 3000 parts.
functional block diagram
TPS78915/18/25/28/30
OUT
IN
GND
EN
V
ref
Current Limit
/ Thermal
Protection
Bypass
150 k
Terminal Functions
TERMINAL
I/O
DESCRIPTION
NAME NO.
I/O
DESCRIPTION
BYPASS 4 I The external bypass capacitor, in conjunction with an internal resistor, creates a low-pass filter to further reduce
regulator noise.
EN 3 I Active low enable.
GND 2 Regulator ground
IN 1 I The IN terminal is the input to the device.
OUT 5 O The OUT terminal is the regulated output of the device.