參數(shù)資料
型號(hào)： TPS71025PW
廠商： Texas Instruments, Inc.
元件分類： 基準(zhǔn)電壓源/電流源
英文描述： LOW-DROPOUT VOLTAGE REGULATOR
中文描述： 低壓差穩(wěn)壓器
文件頁(yè)數(shù)： 1/20頁(yè)
文件大小： 308K
代理商： TPS71025PW
TPS71025
LOW-DROPOUT VOLTAGE REGULATOR
SLVS162A – MAY 1997 – REVISED MAY 1998
1
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
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
μ
A Typ
Extremely Low Sleep-State Current,
0.5
μ
A 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
°
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
μ
A 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
μ
A maximum at T
J
= 25
°
C.
AVAILABLE OPTIONS
TJ
OUTPUT VOLTAGE
(V)
PACKAGED DEVICES
CHIP FORM
(Y)
MIN
TYP
MAX
SMALL OUTLINE
(D)
PLASTIC DIP
(P)
TSSOP
(PW)
0
°
C to 125
°
C
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.
2.45
2.5
2.55
TPS71025D
TPS71025P
TPS71025PWLE
TPS71025Y
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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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
TPS71025PWR 功能描述:低壓差穩(wěn)壓器 - LDO LDO Reg RoHS:否 制造商:Texas Instruments 最大輸入電壓:36 V 輸出電壓:1.4 V to 20.5 V 回動(dòng)電壓（最大值）:307 mV 輸出電流:1 A 負(fù)載調(diào)節(jié):0.3 % 輸出端數(shù)量: 輸出類型:Fixed 最大工作溫度:+ 125 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-20
TPS71025PWRG4 功能描述:低壓差穩(wěn)壓器 - LDO LDO Reg RoHS:否 制造商:Texas Instruments 最大輸入電壓:36 V 輸出電壓:1.4 V to 20.5 V 回動(dòng)電壓（最大值）:307 mV 輸出電流:1 A 負(fù)載調(diào)節(jié):0.3 % 輸出端數(shù)量: 輸出類型:Fixed 最大工作溫度:+ 125 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-20
TPS71025Y 制造商:TI 制造商全稱:Texas Instruments 功能描述:LOW-DROPOUT VOLTAGE REGULATOR
TPS71202 制造商:TI 制造商全稱:Texas Instruments 功能描述:SYNCHRONOUS SEPIC / FLYBACK CONVERTER WITH 1.1A SWITCH AND INTEGRATED LDO
TPS71202DRCR 功能描述:低壓差穩(wěn)壓器 - LDO Dual 250 mA Output UltraLow Noise RoHS:否 制造商:Texas Instruments 最大輸入電壓:36 V 輸出電壓:1.4 V to 20.5 V 回動(dòng)電壓（最大值）:307 mV 輸出電流:1 A 負(fù)載調(diào)節(jié):0.3 % 輸出端數(shù)量: 輸出類型:Fixed 最大工作溫度:+ 125 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-20
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