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| 型號： | tps76xxx |
| 廠商： | Texas Instruments, Inc. |
| 英文描述： | Low-Power 150-mA Low-Dropout Linear Regulators(低耗低壓差線性穩(wěn)壓器) |
| 中文描述： | 低功耗150mA的低壓差線性穩(wěn)壓器（低耗低壓差線性穩(wěn)壓器） |
| 文件頁數(shù)： | 14/17頁 |
| 文件大?。?/td> | 238K |
| 代理商： | TPS76XXX |
TPS76301, TPS76316, TPS76318, TPS76325, TPS76327
TPS76328, TPS76330, TPS76333, TPS76338, TPS76350
LOW-POWER 150-mA LOW-DROPOUT LINEAR REGULATORS
SLVS181D – DECEMBER 1998 – REVISED JUNE 1999
14
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
APPLICATION INFORMATION
R1
VO
0.995
Vref
1
R2
(2)
VO
VI
OUT
FB
R2
GND
EN
IN
≤
0.5 V
≥
2 V
TPS76301
1
μ
F
OUTPUT
VOLTAGE
(V)
R1
R2
2.5
3.3
3.6
4
5
6.45
187
301
348
402
549
750
169
169
169
169
169
169
OUTPUT VOLTAGE
PROGRAMMING GUIDE
DIVIDER RESISTANCE
(k
)
1% values shown.
3
1
4
2
R1
5
CSR = 1
4.7
μ
F
+
Figure 21. TPS76301 Adjustable LDO Regulator Programming
power dissipation and junction temperature
Specified regulator operation is assured to a junction temperature of 125
°
C; the maximum junction temperature
allowable to avoid damaging the device is 150
°
C. This restriction limits the power dissipation the regulator can
handle in any given application. To ensure the junction temperature is within acceptable limits, calculate the
maximum allowable dissipation, P
D(max)
, and the actual dissipation, P
D
, which must be less than or equal to
P
D(max)
.
The maximum-power-dissipation limit is determined using the following equation:
PD(max)
TJmax
TA
RJA
Where
T
J
max
is the maximum allowable junction temperature
R
θ
JA
is the thermal resistance junction-to-ambient for the package, i.e., 285
°
C/W for the 5-terminal
SOT23.
T
A
is the ambient temperature.
The regulator dissipation is calculated using:
PD
VI
VO
IO
Power dissipation resulting from quiescent current is negligible.
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| TPS76XXXEVM-125 | 功能描述:電源管理IC開發(fā)工具 Universal LDO Eval Mod RoHS:否 制造商:Maxim Integrated 產(chǎn)品:Evaluation Kits 類型:Battery Management 工具用于評估:MAX17710GB 輸入電壓: 輸出電壓:1.8 V |
| TPS77001DBVR | 功能描述:低壓差穩(wěn)壓器 - LDO Adj 50mA 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(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 |
| TPS77001DBVRG4 | 功能描述:低壓差穩(wěn)壓器 - LDO Ultra Low-Power 50-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(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 |
| TPS77001DBVT | 功能描述:低壓差穩(wěn)壓器 - LDO Adj 50mA 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(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 |
| TPS77001DBVTG4 | 功能描述:低壓差穩(wěn)壓器 - LDO Ultra Low-Power 50-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(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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