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TPS71025P Datasheet

  • TPS71025P

  • LOW-DROPOUT VOLTAGE REGULATOR

  • 20頁

  • TI

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TPS71025
LOW-DROPOUT VOLTAGE REGULATOR
SLVS162A 鈥?MAY 1997 鈥?REVISED MAY 1998
D
D
D
D
D
D
D
D
2.5-V Fixed-Output Regulator
Very Low-Dropout (LDO) Voltage . . . 57 mV
Typical at I
O
= 100 mA
Very Low Quiescent Current, Independent
of Load . . . 292
碌A(chǔ)
Typ
Extremely Low Sleep-State Current,
0.5
碌A(chǔ)
Max
2% Tolerance Over Specified Conditions
Output Current Range . . . 0 mA to 500 mA
Available in Space Saving 8-Pin SOIC and
20-Pin TSSOP Packages
0擄C to 125擄C Operating Junction
Temperature Range
D OR P PACKAGE
(TOP VIEW)
GND
EN
IN
IN
1
2
3
4
8
7
6
5
NC
SENSE
OUT
OUT
PW PACKAGE
(TOP VIEW)
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.
GND
GND
GND
NC
NC
EN
NC
IN
IN
IN
1
2
3
4
5
6
7
8
9
10
20
19
18
17
16
15
14
13
12
11
NC
NC
NC
NC
NC
SENSE
OUT
OUT
NC
NC
NC 鈥?No internal connection
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
碌A(chǔ)
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
碌A(chǔ)
maximum at T
J
= 25擄C.
AVAILABLE OPTIONS
OUTPUT VOLTAGE
(V)
MIN
0擄C to 125擄C
2.45
TYP
2.5
MAX
2.55
SMALL OUTLINE
(D)
TPS71025D
PACKAGED DEVICES
PLASTIC DIP
(P)
TPS71025P
TSSOP
(PW)
TPS71025PWLE
CHIP FORM
(Y)
TPS71025Y
TJ
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.
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
漏
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.
POST OFFICE BOX 655303
鈥?/div>
DALLAS, TEXAS 75265
1

TPS71025P 產(chǎn)品屬性

  • 50

  • 集成電路 (IC)

  • PMIC - 穩(wěn)壓器 - 線性

  • -

  • 正，固定式

  • 2.5V

  • 2.97 V ~ 10 V

  • 0.33V @ 500mA

  • 1

  • 500mA（最小值）

  • 0°C ~ 125°C

  • 通孔

  • 8-DIP（0.300"，7.62mm）

  • 8-PDIP

  • 管件

  • 296-2657-5

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