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參數(shù)資料
| 型號： | TPS76627D |
| 廠商： | Texas Instruments, Inc. |
| 元件分類： | 基準電壓源/電流源 |
| 英文描述： | ULTRA LOW QUIESCENT CURRENT 250-mA LOW-DROPOUT VOLTAGE REGULATORS |
| 中文描述： | 超低靜態(tài)電流250 mA的低壓差穩(wěn)壓器 |
| 文件頁數(shù)： | 15/18頁 |
| 文件大小： | 266K |
| 代理商： | TPS76627D |
TPS76615, TPS76618, TPS76625, TPS76627
TPS76628, TPS76630, TPS76633, TPS76650, TPS76601
ULTRA LOW QUIESCENT CURRENT 250-mA LOW-DROPOUT VOLTAGE REGULATORS
SLVS237 – 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
+
TPS766xx
CO
1
NC/FB
300 m
250 k
Figure 28. Typical Application Circuit (Fixed Versions)
programming the TPS76601 adjustable LDO regulator
The output voltage of the TPS76601 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
TPS76601
PG
0.1
μ
F
250 k
300 m
CO
Figure 29. TPS76601 Adjustable LDO Regulator Programming
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| TPS76801Q | TRANSIENT-RESPONSE 1-A LOW-DROPOUT VOLTAGE REGULATORS(快速瞬變反應(yīng)1A低壓差線性穩(wěn)壓器) |
| TPS76825Q | Fast-Transient-Response 1-A Low-Dropout Voltage Regulators(快速瞬變反應(yīng)1A低壓差2.5V線性穩(wěn)壓器) |
| TPS76828Q | Fast-Transient-Response 1-A Low-Dropout Voltage Regulators(快速瞬變反應(yīng)1A低壓差2.8V線性穩(wěn)壓器) |
| TPS76815Q | Fast-Transient-Response 1-A Low-Dropout Voltage Regulators(快速瞬變反應(yīng)1A低壓差1.5V線性穩(wěn)壓器) |
| TPS76818Q | Fast-Transient-Response 1-A Low-Dropout Voltage Regulators(快速瞬變反應(yīng)1A低壓差1.8V線性穩(wěn)壓器) |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| TPS76627DG4 | 功能描述:低壓差穩(wěn)壓器 - LDO 250-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 |
| TPS76627DR | 功能描述:低壓差穩(wěn)壓器 - LDO 250-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 |
| TPS76627DRG4 | 功能描述:低壓差穩(wěn)壓器 - LDO 250-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 |
| TPS76628D | 功能描述:低壓差穩(wěn)壓器 - LDO 250-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 |
| TPS76628DG4 | 功能描述:低壓差穩(wěn)壓器 - LDO 250-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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