參數(shù)資料
型號: TPS76318DBV
廠商: Texas Instruments, Inc.
英文描述: LOW-POWER 150-mA LOW-DROPOUT LINEAR REGULATORS
中文描述: 低功耗150mA的低壓差線性穩(wěn)壓器
文件頁數(shù): 12/20頁
文件大?。?/td> 305K
代理商: TPS76318DBV
SLVS181H DECEMBER 1998 REVISED JANUARY 2004
www.ti.com
12
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
(1)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(1)
Figure 20. Typical Application Circuit
相關PDF資料
PDF描述
TPS76301DBV LOW-POWER 150-mA LOW-DROPOUT LINEAR REGULATORS
TPS76325DBV LOW-POWER 150-mA LOW-DROPOUT LINEAR REGULATORS
TPS76350DBV CABLE ASSEMBLY; SMA MALE TO N FEMALE BULKHEAD; 50 OHM, RG213/U COAX; 72" CABLE LENGTH;
TPS76316DBV LOW-POWER 150-mA LOW-DROPOUT LINEAR REGULATORS
TPS76333DBV LOW-POWER 150-mA LOW-DROPOUT LINEAR REGULATORS
相關代理商/技術參數(shù)
參數(shù)描述
TPS76318DBVR 功能描述:低壓差穩(wěn)壓器 - LDO Low-Power 150-mA 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
TPS76318DBVRG4 功能描述:低壓差穩(wěn)壓器 - LDO Low-Power 150-mA 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
TPS76318DBVT 功能描述:低壓差穩(wěn)壓器 - LDO 1.8V 150mA 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 回動電壓(最大值):307 mV 輸出電流:1 A 負載調節(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
TPS76318DBVT 制造商:Texas Instruments 功能描述:Voltage Regulator IC Output Voltage Max:
TPS76318DBVTG4 功能描述:低壓差穩(wěn)壓器 - LDO Low-Power 150-mA 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