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參數(shù)資料
| 型號： | TPS76818Q |
| 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 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) |
| 中文描述： | 快速瞬態(tài)響應(yīng)1 -低壓差穩(wěn)壓器（快速瞬變反應(yīng)第1A低壓差1.8V的線性穩(wěn)壓器） |
| 文件頁數(shù)： | 15/19頁 |
| 文件大小： | 279K |
| 代理商： | TPS76818Q |
TPS76815Q, TPS76818Q, TPS76825Q, TPS76827Q
TPS76828Q, TPS76830Q TPS76833Q, TPS76850Q, TPS76801Q
FAST-TRANSIENT-RESPONSE 1-A LOW-DROPOUT VOLTAGE REGULATORS
SLVS211B – JUNE 1999 – REVISED JULY 1999
15
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
APPLICATION INFORMATION
external capacitor requirements (continued)
PG
OUT
OUT
7
6
5
IN
IN
EN
GND
3
16
14
13
VI
C1
0.1
μ
F
PG
VO
10
μ
F
+
TPS768xx
CO
250 k
Figure 25. Typical Application Circuit (Fixed Versions)
programming the TPS76801 adjustable LDO regulator
The output voltage of the TPS76801 adjustable regulator is programmed using an external resistor divider as
shown in Figure 26. 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 50-
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 50
μ
A and then calculate R1 using:
R1
VO
Vref
1
R2
(2)
OUTPUT
VOLTAGE
2.5 V
3.3 V
3.6 V
4.75 V
R1
R2
UNIT
33.2
53.6
61.9
90.8
30.1
30.1
30.1
30.1
k
k
k
k
OUTPUT VOLTAGE
PROGRAMMING GUIDE
VO
VI
PG
OUT
FB / NC
GND
R1
R2
EN
IN
≤
0.9 V
≥
1.7 V
TPS76801
PG
0.1
μ
F
250 k
Figure 26. TPS76801 Adjustable LDO Regulator Programming
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| TPS76827Q | Fast-Transient-Response 1-A Low-Dropout Voltage Regulators(快速瞬變反應(yīng)1A低壓差2.7V線性穩(wěn)壓器) |
| TPS76830Q | Fast-Transient-Response 1-A Low-Dropout Voltage Regulators(快速瞬變反應(yīng)1A低壓差3.0V線性穩(wěn)壓器) |
| TPS76833Q | FAST-TRANSIENT-RESPONSE 1-A LOW-DROPOUT VOLTAGE REGULATORS |
| TPS76850Q | FAST-TRANSIENT-RESPONSE 1-A LOW-DROPOUT VOLTAGE REGULATORS |
| TPS77415DGKR | 250-mA LDO REGULATORS WITH 8-PIN MSOP PACKAGING |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| TPS76818QD | 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 |
| TPS76818QDG4 | 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 |
| TPS76818QDR | 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 |
| TPS76818QDRG4 | 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 |
| TPS76818QPWP | 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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