TL75LPxxQ SERIES
TL75LPxxY SERIES
LOW-DROPOUT VOLTAGE REGULATORS
SLVS073A – SEPTEMBER 1992 – REVISED AUGUST 1995
• Very Low-Dropout Voltage . . . Less Than
PW PACKAGE
(TOP VIEW)
400 mV at 300 mA
• Standby Mode Reduces Current to a
Maximum of 150 µA
GND/HEAT SINK
GND/HEAT SINK
GND/HEAT SINK
NC
NC
NC
NC
NC
NC
1
2
3
4
5
6
7
8
9
10
20
19
18
17
16
• Output Regulated to Within ±2% Over Full
Temperature Range
• Packaged in Thin Shrink Small-Outline
NC
Package
ENABLE
NC
15 OUTPUT
• Only 10-µF Load Capacitor Required to
14
13
12
11
OUTPUT
NC
Maintain Regulation at I = 300 mA
O
INPUT
INPUT
NC
description
INPUT
NC
The TL75LPxxQ devices are low-dropout voltage
regulators specifically targeted for use in portable
applications. These devices generate fixed output
voltages at loads of up to 300 mA with only
400-mV dropout over the full temperature range.
GND/HEAT SINK – These terminals have an internal
connection to ground and must be grounded.
NC – No internal connection
The PW package is only available in left-end taped
and reeled (order device TL75LPxxQPWLE).
†
Low-dropout voltage regulators are commonly
used in battery-powered systems such as analog
and digital cellular phones. The TL75LPxx family
of regulators feature a TTL/CMOS-compatible
enable terminal, which can be used to switch the
device into standby mode. This feature reduces
power consumption when the instrument is not
active. Less that 150 µA is required when the unit
is disabled.
typical application schematic
V ±2%
O
INPUT
OUTPUT
at 300 mA
TL75LPxxQ
GND/
HEAT SINK
V
BAT
C
= 10 µF
0.1 µF
O
ENABLE
2 V
DISABLE
ENABLE
A concern in many new designs is conservation of
board space and overall reduction in equipment
size. The thin shrink small-outline package
(TSSOP) minimizes board area and reduces
component height. This package has a maximum height of less than 1.1 mm (compared to the 1.75 mm of a
standard 8-pin SO package) and dimensions of only 6.5 mm by 4.4 mm.
All low-dropout regulators require an external capacitor at the output to maintain regulation and stability. To
further reduce board area and cost, the TL75LPxx devices are designed to require a minimum capacitor of only
10 µF. This is 1/10 the typical value used by many other low-dropout regulators. To simplify the task of choosing
a suitable capacitor, TI has included in this datasheet a list of recommended capacitors for use with these
devices.
The TL75LPxxQ devices are characterized for operation over T = –40°C to 125°C.
J
AVAILABLE OPTIONS
PACKAGED DEVICES
V
O
CHIP FORM
(Y)
T
J
TSSOP
(PW)
MIN
TYP
MAX
4.75
4.9
4.85
5
4.95
5.1
TL75LP48QPWLE
TL75LP05QPWLE
TL75LP08QPWLE
TL75LP10QPWLE
TL75LP12QPWLE
TL75LP48Y
TL75LP05Y
TL75LP08Y
TL75LP10Y
TL75LP12Y
–40°C to 125°C
7.84
9.8
8
8.16
10.2
12.24
10
12
11.76
The PW package is available only in tape and reel. Chip forms are tested at 25°C.
Copyright 1995, 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.
3–1
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265