參數(shù)資料
型號(hào): TPS75401Q
廠商: Texas Instruments, Inc.
元件分類: 基準(zhǔn)電壓源/電流源
英文描述: FAST-TRANSIENT-RESPONSE 2-A LOW-DROPOUT VOLTAGE REGULATORS
中文描述: 快速瞬態(tài)響應(yīng)2 -低壓差電壓調(diào)節(jié)器
文件頁(yè)數(shù): 19/29頁(yè)
文件大?。?/td> 446K
代理商: TPS75401Q
TPS75201Q, TPS75215Q, TPS75218Q, TPS75225Q, TPS75233Q WITH RESET
TPS75401Q, TPS75415Q, TPS75418Q, TPS75425Q, TPS75433Q WITH POWER GOOD
FAST-TRANSIENT-RESPONSE 2-A LOW-DROPOUT VOLTAGE REGULATORS
SLVS242B – MARCH 2000 – REVISED JUNE 2003
19
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
APPLICATION INFORMATION
programming the TPS75x01Q adjustable LDO regulator
The output voltage of the TPS75x01Q adjustable regulator is programmed using an external resistor divider as
shown in Figure 24. The output voltage is calculated using:
VO
Vref
1
R1
R2
(1)
Where:
V
ref
= 1.1834 V typ (the internal reference voltage)
Resistors R1 and R2 should be chosen for approximately 40-
μ
A divider current. Lower value resistors can be
used but offer no inherent advantage and waste more power. Higher values should be avoided as leakage
currents at FB increase the output voltage error. The recommended design procedure is to choose
R2 = 30.1 k
to set the divider current at 40
μ
A and then calculate R1 using:
R1
VO
Vref
1
R2
(2)
OUTPUT
VOLTAGE
2.5 V
3.3 V
3.6 V
R1
R2
UNIT
33.2
53.6
61.9
30.1
30.1
30.1
k
k
k
OUTPUT VOLTAGE
PROGRAMMING GUIDE
VO
VI
RESET/
PG
OUT
FB/SENSE
GND
R1
R2
EN
IN
0.7 V
2 V
TPS75x01Q
RESET or PG Output
0.22
μ
F
250 k
NOTE: To reduce noise and prevent
oscillation, R1 and R2 need to be as close
as possible to the FB/SENSE terminal.
CO
Figure 24. TPS75x01Q Adjustable LDO Regulator Programming
相關(guān)PDF資料
PDF描述
TPS75415Q FAST-TRANSIENT-RESPONSE 2-A LOW-DROPOUT VOLTAGE REGULATORS
TPS75418Q FAST-TRANSIENT-RESPONSE 2-A LOW-DROPOUT VOLTAGE REGULATORS
TPS75425Q FAST-TRANSIENT-RESPONSE 2-A LOW-DROPOUT VOLTAGE REGULATORS
TPS75433Q FAST-TRANSIENT-RESPONSE 2-A LOW-DROPOUT VOLTAGE REGULATORS
TPS75215Q FAST-TRANSIENT-RESPONSE 2-A LOW-DROPOUT VOLTAGE REGULATORS
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
TPS75401QPWP 功能描述:低壓差穩(wěn)壓器 - LDO Fast-Tran-Resp 2-A 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
TPS75401QPWPG4 功能描述:低壓差穩(wěn)壓器 - LDO Fast-Tran-Resp 2-A 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
TPS75401QPWPR 功能描述:低壓差穩(wěn)壓器 - LDO Fast-Tran-Resp 2-A 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
TPS75401QPWPRG4 功能描述:低壓差穩(wěn)壓器 - LDO Fast-Tran-Resp 2-A 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
TPS75415QPWP 功能描述:低壓差穩(wěn)壓器 - LDO Fast-Tran-Resp 2-A 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