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參數(shù)資料
| 型號： | TPS76830-Q1 |
| 元件分類： | 基準(zhǔn)電壓源/電流源 |
| 英文描述： | Automotive Catalog Fast Transient-Response 1-A Low-Dropout Voltage Regulators |
| 中文描述： | 汽車產(chǎn)品目錄快速瞬態(tài)響應(yīng)1 -低壓差穩(wěn)壓器 |
| 文件頁數(shù)： | 15/18頁 |
| 文件大?。?/td> | 329K |
| 代理商： | TPS76830-Q1 |
TPS76515, TPS76518, TPS76525, TPS76527
TPS76528, TPS76530, TPS76533, TPS76550, TPS76501
ULTRA-LOW QUIESCIENT CURRENT 150-mA LOW-DROPOUT VOLTAGE REGULATORS
SLVS236 – AUGUST 1999
15
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
APPLICATION INFORMATION
external capacitor requirements (continued)
PG
OUT
OUT
6
5
4
IN
IN
EN
GND
3
2
7
8
VI
0.1
μ
F
PG
VO
4.7
μ
F
+
TPS765xx
CO
1
NC/FB
300 m
250 k
Figure 28. Typical Application Circuit (Fixed Versions)
programming the TPS76501 adjustable LDO regulator
The output voltage of the TPS76501 adjustable regulator is programmed using an external resistor divider as
shown in Figure 29. The output voltage is calculated using:
VO
Vref
1
R1
R2
(1)
Where
V
ref
= 1.224 V typ (the internal reference voltage)
Resistors R1 and R2 should be chosen for approximately 7-
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 = 169 k
to set the divider current at 7
μ
A and then calculate R1 using:
R1
VO
Vref
1
R2
(2)
OUTPUT
VOLTAGE
2.5 V
3.3 V
3.6 V
4.0 V
5.0 V
R1
R2
UNIT
174
287
324
383
523
169
169
169
169
169
k
k
k
k
k
OUTPUT VOLTAGE
PROGRAMMING GUIDE
VO
VI
PG
OUT
FB / NC
GND
R1
R2
EN
IN
≤
0.8 V
≥
2.0 V
TPS76501
PG
0.1
μ
F
250 k
300 m
CO
Figure 29. TPS76501 Adjustable LDO Regulator Programming
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| TPS76830QD | 功能描述:低壓差穩(wěn)壓器 - LDO Micropower 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 |
| TPS76830QDG4 | 功能描述:低壓差穩(wěn)壓器 - LDO Micropower 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 |
| TPS76830QDR | 功能描述:低壓差穩(wěn)壓器 - LDO Micropower 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 |
| TPS76830QDRG4 | 功能描述:低壓差穩(wěn)壓器 - LDO Micropower 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 |
| TPS76830QPWP | 功能描述:低壓差穩(wěn)壓器 - LDO Micropower 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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