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參數(shù)資料
| 型號(hào)： | tps76xxx |
| 廠商： | Texas Instruments, Inc. |
| 英文描述： | Low-Power 150-mA Low-Dropout Linear Regulators(低耗低壓差線性穩(wěn)壓器) |
| 中文描述： | 低功耗150mA的低壓差線性穩(wěn)壓器（低耗低壓差線性穩(wěn)壓器） |
| 文件頁數(shù)： | 12/17頁 |
| 文件大?。?/td> | 238K |
| 代理商： | TPS76XXX |
TPS76301, TPS76316, TPS76318, TPS76325, TPS76327
TPS76328, TPS76330, TPS76333, TPS76338, TPS76350
LOW-POWER 150-mA LOW-DROPOUT LINEAR REGULATORS
SLVS181D – DECEMBER 1998 – REVISED JUNE 1999
12
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
APPLICATION INFORMATION
The TPS763xx low-dropout (LDO) regulators are new families of regulators which have been optimized for use
in battery-operated equipment and feature extremely low dropout voltages, low quiescent current (140
μ
A), and
an enable input to reduce supply currents to less than 2
μ
A when the regulator is turned off.
device operation
The TPS763xx uses a PMOS pass element to dramatically reduce both dropout voltage and supply current over
more conventional PNP-pass-element LDO designs. The PMOS pass element is a voltage-controlled device
that, unlike a PNP transistor, does not require increased drive current as output current increases. Supply
current in the TPS763xx is essentially constant from no-load to maximum load.
Current limiting and thermal protection prevent damage by excessive output current and/or power dissipation.
The device switches into a constant-current mode at approximately 1 A; further load reduces the output voltage
instead of increasing the output current. The thermal protection shuts the regulator off if the junction temperature
rises above 165
°
C. Recovery is automatic when the junction temperature drops approximately 25
°
C below the
high temperature trip point. The PMOS pass element includes a back diode that safely conducts reverse current
when the input voltage level drops below the output voltage level.
A logic low on the enable input, EN shuts off the output and reduces the supply current to less than 2
μ
A. EN
should be tied high in applications where the shutdown feature is not used.
A typical application circuit is shown in Figure 20.
C1
1
μ
F
TPS76316, TPS76318, TPS76325, TPS76327, TPS76328, TPS7630 TPS76333, TPS76338,
TPS76350 (fixed-voltage options).
NC/FB
OUT
1
3
IN
EN
GND
2
4
5
VI
CSR = 1
VO
4.7
μ
F
+
TPS763xx
Figure 20. Typical Application Circuit
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| TPS76XXXEVM-125 | 功能描述:電源管理IC開發(fā)工具 Universal LDO Eval Mod RoHS:否 制造商:Maxim Integrated 產(chǎn)品:Evaluation Kits 類型:Battery Management 工具用于評(píng)估:MAX17710GB 輸入電壓: 輸出電壓:1.8 V |
| TPS77001DBVR | 功能描述:低壓差穩(wěn)壓器 - LDO Adj 50mA LDO 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 |
| TPS77001DBVRG4 | 功能描述:低壓差穩(wěn)壓器 - LDO Ultra Low-Power 50-mA LDO 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 |
| TPS77001DBVT | 功能描述:低壓差穩(wěn)壓器 - LDO Adj 50mA LDO 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 |
| TPS77001DBVTG4 | 功能描述:低壓差穩(wěn)壓器 - LDO Ultra Low-Power 50-mA LDO 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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