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TPS71025PW Datasheet(PDF) 1 Page - Texas Instruments

No. de Pieza. TPS71025PW
Descripción  LOW-DROPOUT VOLTAGE REGULATOR
Descarga  20 Pages
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Fabricante  TI [Texas Instruments]
Página de inicio  http://www.ti.com
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TPS71025PW Datasheet(HTML) 1 Page - Texas Instruments

 
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TPS71025
LOW-DROPOUT VOLTAGE REGULATOR
SLVS162A – MAY 1997 – REVISED MAY 1998
1
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
D 2.5-V Fixed-Output Regulator
D Very Low-Dropout (LDO) Voltage . . . 57 mV
Typical at IO = 100 mA
D Very Low Quiescent Current, Independent
of Load... 292
µA Typ
D Extremely Low Sleep-State Current,
0.5
µA Max
D 2% Tolerance Over Specified Conditions
D Output Current Range...0 mA to 500 mA
D Available in Space Saving 8-Pin SOIC and
20-Pin TSSOP Packages
D 0°C to 125°C Operating Junction
Temperature Range
description
The TPS71025 low-dropout regulator offers an
order of magnitude reduction in both dropout
voltage and quiescent current over conventional
LDO performance. The improvement results from
replacing the typical pnp pass transistor with a
PMOS device.
Because the PMOS device behaves as a low-value resistor, the dropout voltage is very low (maximum of 95 mV
at an output current of 100 mA) and is directly proportional to the output current (see Figure 1). Additionally,
since the PMOS pass element is a voltage-driven device, the quiescent current is very low and remains
independent of output loading (typically 292
µA over the full range of output current, 0 mA to 500 mA). These
two key specifications yield a significant improvement in operating life for battery-powered systems. The
TPS71025 also features a sleep mode; applying a TTL high signal to EN (enable) shuts down the regulator,
reducing the quiescent current to 0.5
µA maximum at TJ = 25°C.
AVAILABLE OPTIONS
TJ
OUTPUT VOLTAGE
(V)
PACKAGED DEVICES
CHIP FORM
TJ
MIN
TYP
MAX
SMALL OUTLINE
(D)
PLASTIC DIP
(P)
TSSOP
(PW)
(Y)
0
°C to 125°C
2.45
2.5
2.55
TPS71025D
TPS71025P
TPS71025PWLE
TPS71025Y
The D package is availabe taped and reeled. Add R suffix to device type (e.g., TPS71025DR). The PW package is only available left-end taped
and reeled and is indicated by the LE suffix on the device type.
NC – No internal connection
1
2
3
4
8
7
6
5
GND
EN
IN
IN
NC
SENSE
OUT
OUT
D OR P PACKAGE
(TOP VIEW)
1
2
3
4
5
6
7
8
9
10
20
19
18
17
16
15
14
13
12
11
GND
GND
GND
NC
NC
EN
NC
IN
IN
IN
NC
NC
NC
NC
NC
SENSE
OUT
OUT
NC
NC
PW PACKAGE
(TOP VIEW)
Copyright
© 1997, 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.
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.


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