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參數(shù)資料
| 型號(hào)： | LM29153R-3.3 |
| 廠商： | TAEJIN Technology Co., Ltd. |
| 英文描述： | 1.5A Very L.D.O Voltage Regulator |
| 中文描述： | 1.5A非常LDO穩(wěn)壓器 |
| 文件頁數(shù)： | 7/7頁 |
| 文件大小： | 1456K |
| 代理商： | LM29153R-3.3 |
1.5A Very L.D.O Voltage Regulator
LM29150/1/2/3
Minimum Load Current
The LM29150 regulators are specified between finite loads. If the output is too small, leakage
currents is too small, leakage currents dominate and the output voltage rises. The 5mA minimum
load current swamps any expected leakage current across the operating temperature range.
Adjustable Regulator Design
Figure 4.
Adjustable Regulator with Resistors
The adjustable regulator versions, LM29152 and LM29153, allow programming the output voltage
anywhere between 1.25V and the 26V maximum operating rating of the family.
Two resistors are used. Resistors can be quite large, up to 1M, because of the very high input
impedance and low bias current of the sense comparator: The resistor values are calculated by:
Where is VO the desired output voltage. Figure 4 shows component definition. Applications with
widely varying load currents may scale the resistors to draw the minimum load current required for
proper operation.
Error Flag
LM29151 and LM29153 versions feature and Error Flag, which looks at the output voltage and
signals and error condition when this voltage and signals an error condition when this voltage
drops 5% below its expected value. The error flag is an open-collector output that pulls low
under fault conditions. It may sink 10mA. Low output voltage signifies a number of possible
problems, including an over-current fault (the device is in current limit) and low input voltage.
The flag output is inoperative during over temperature shutdwon conditions.
Enable input
LM29151 and LM29152 versions feature and enable (EN) input that allows ON/OFF control of the
device. Special design allows "zero" current drain when the device is disabled-only microamperes
of leakage current flows. The EN input has TTL/CMOS compatible thresholds for simple interfacing
with logic, or may be directly tied to ≤ 30V. Enabling the regulator requires approximately 20uA of
current.
Mar. 2006-Rev06
HTC
98
VOUT=1.240V x [ 1+(R1/R2)]
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| LM29153R-5.0 | 1.5A Very L.D.O Voltage Regulator |
| LM29153RS-1.5 | 1.5A Very L.D.O Voltage Regulator |
| LM29153RS-12 | 1.5A Very L.D.O Voltage Regulator |
| LM29153RS-2.5 | 1.5A Very L.D.O Voltage Regulator |
| LM29153RS-3.0 | 1.5A Very L.D.O Voltage Regulator |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LM2917AN | 制造商:Texas Instruments 功能描述: |
| LM2917M | 功能描述:電壓頻率轉(zhuǎn)換及頻率電壓轉(zhuǎn)換 RoHS:否 制造商:Texas Instruments 全標(biāo)度頻率:4000 KHz 線性誤差:+/- 1 % FSR 電源電壓-最大: 電源電壓-最小: 最大工作溫度:+ 85 C 最小工作溫度:- 25 C 安裝風(fēng)格:Through Hole 封裝 / 箱體:PDIP-14 封裝:Tube |
| LM2917M/NOPB | 功能描述:電壓頻率轉(zhuǎn)換及頻率電壓轉(zhuǎn)換 FREQ TO VLTG CONVERTER RoHS:否 制造商:Texas Instruments 全標(biāo)度頻率:4000 KHz 線性誤差:+/- 1 % FSR 電源電壓-最大: 電源電壓-最小: 最大工作溫度:+ 85 C 最小工作溫度:- 25 C 安裝風(fēng)格:Through Hole 封裝 / 箱體:PDIP-14 封裝:Tube |
| LM2917M/NOPB | 制造商:Texas Instruments 功能描述:Transceiver IC |
| LM2917M-8 | 功能描述:電壓頻率轉(zhuǎn)換及頻率電壓轉(zhuǎn)換 RoHS:否 制造商:Texas Instruments 全標(biāo)度頻率:4000 KHz 線性誤差:+/- 1 % FSR 電源電壓-最大: 電源電壓-最小: 最大工作溫度:+ 85 C 最小工作溫度:- 25 C 安裝風(fēng)格:Through Hole 封裝 / 箱體:PDIP-14 封裝:Tube |
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