參數(shù)資料
型號： TPS7148
英文描述： Lowest Dropout (LDO) PMOS Voltage Regulator
中文描述： 最低降（LDO）PMOS電壓調(diào)節(jié)器
文件頁數(shù)： 1/39頁
文件大小： 612K
代理商： TPS7148
TPS71H01Q, TPS71H33Q, TPS71H48Q, TPS71H50Q
LOW-DROPOUT VOLTAGE REGULATORS
SLVS152B – NOVEMBER 1996 – REVISED AUGUST 2002
1
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
Available in 5-V, 4.85-V, and 3.3-V
Fixed-Output and Adjustable Versions
Very Low-Dropout Voltage . . . Maximum of
32 mV at I
O
= 100 mA (TPS71H50)
Very Low Quiescent Current – Independent
of Load . . . 285
μ
A Typ
Extremely Low Sleep-State Current
0.5
μ
A Max
2% Tolerance Over Specified Conditions
For Fixed-Output Versions
Output Current Range of 0 mA to 500 mA
TSSOP Package Option Offers Reduced
Component Height for Space-Critical
Applications
Thermally Enhanced Surface-Mount
Package
Power-Good (PG) Status Output
description
The TPS71Hxx integrated circuits are a family of
micropower low-dropout (LDO) voltage regula-
tors. An order of magnitude reduction in dropout
voltage and quiescent current over conventional
LDO performance is achieved by 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 32 mV at an output current of
100 mA for the TPS71H50) 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 285
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 LDO family 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.
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.
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.
Copyright
2002, Texas Instruments Incorporated
NC – No internal connection
SENSE – Fixed voltage options only (TPS71H33,
TPS71H48, and TPS71H50)
FB – Adjustable version only (TPS71H01)
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3
4
5
6
7
8
9
10
20
19
18
17
16
15
14
13
12
11
GND/HEATSINK
GND/HEATSINK
GND
NC
EN
IN
IN
NC
GND/HEATSINK
GND/HEATSINK
GND/HEATSINK
GND/HEATSINK
NC
NC
PG
SENSE
/FB
OUT
OUT
GND/HEATSINK
GND/HEATSINK
PWP PACKAGE
(TOP VIEW)
Thermal
Pad
PWP PACKAGE
(BOTTOM VIEW)
相關PDF資料
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TPS72115 Cap-Free, NMOS, 150mA Low Dropout Regulator with Reverse Current Protection
相關代理商/技術參數(shù)
參數(shù)描述
TPS7148Q 制造商:TI 制造商全稱:Texas Instruments 功能描述:LOW-DROPOUT VOLTAGE REGULATORS
TPS7148QD 功能描述:低壓差穩(wěn)壓器 - LDO Lowest Dropout PMOS 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 回動電壓（最大值）:307 mV 輸出電流:1 A 負載調(diào)節(jié):0.3 % 輸出端數(shù)量: 輸出類型:Fixed 最大工作溫度:+ 125 C 安裝風格:SMD/SMT 封裝 / 箱體:VQFN-20
TPS7148QD 制造商:Texas Instruments 功能描述:Voltage Regulator IC Voltage Regulator T
TPS7148QDG4 功能描述:低壓差穩(wěn)壓器 - LDO Lowest Dropout PMOS 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 回動電壓（最大值）:307 mV 輸出電流:1 A 負載調(diào)節(jié):0.3 % 輸出端數(shù)量: 輸出類型:Fixed 最大工作溫度:+ 125 C 安裝風格:SMD/SMT 封裝 / 箱體:VQFN-20
TPS7148QDR 功能描述:低壓差穩(wěn)壓器 - LDO Lowest Dropout PMOS 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 回動電壓（最大值）:307 mV 輸出電流:1 A 負載調(diào)節(jié):0.3 % 輸出端數(shù)量: 輸出類型:Fixed 最大工作溫度:+ 125 C 安裝風格:SMD/SMT 封裝 / 箱體:VQFN-20
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