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參數(shù)資料
| 型號(hào)： | MIC37500 |
| 廠商： | Micrel Semiconductor,Inc. |
| 英文描述： | 5A, Low voltage uCap LDO REgulator |
| 中文描述： | 第5A，低電壓LDO穩(wěn)壓器管理平臺(tái) |
| 文件頁(yè)數(shù)： | 6/8頁(yè) |
| 文件大?。?/td> | 44K |
| 代理商： | MIC37500 |
MIC37500/37501/37502
Micrel
MIC37500/37501/37502
6
January 2002
Minimum Load Current
The MIC37500/01/02 regulator is specified between finite
loads. If the output current is too small, leakage currents
dominate and the output voltage rises. A 10mA minimum load
current is necessary for proper operation.
Error Flag
The MIC37501 features an error flag circuit that monitors the
output voltage and signals an error condition when the
voltage 5% below the nominal output voltage. The error flag
is an open-collector output that can sink 10mA during a fault
condition.
Low output voltage can be caused by a number of problems,
including an overcurrent fault (device in current limit) or low
input voltage. The flag is inoperative during overtemperature
shutdown.
Enable Input
The MIC37501/37502 also feature an enable input for on/off
control of the device. Its shutdown state draws “zero” current
(only micoamperes of leakage). The enable input is TTL/
CMOS compatible for simple logic interface, but can be
connected to up to V
IN. When enabled, it draws approxi-
mately 15
A.
Adjustable Regulator Design
IN
R1
VOUT
VIN
COUT
R2
EN
OUT
ADJ
GND
MIC37502
ENABLE
SHUTDOWN
V
1.240V 1
R1
R2
OUT =+
Figure 2. Adjustable Regulator with Resistors
The MIC37502 allows programming the output voltage any-
where between 1.24V and the 5.5V 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:
R1 R2
V
1.240
1
OUT
=
Where V
OUT is the desired output voltage. Figure 2 shows
component definition. Applications with widely varying load
currents may scale the resistors to draw the minimum load
current required for proper operation (see above).
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PDF描述 |
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| MIC37501-1.5BR | 5A, Low voltage uCap LDO REgulator |
| MIC37502BR | 5A, Low voltage uCap LDO REgulator |
| MIC37501 | 5A, Low voltage uCap LDO REgulator |
| MIC37502 | 5A, Low voltage uCap LDO REgulator |
| MIC38C43 | BiCMOS Current-Mode PWM Controllers |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MIC37501 | 制造商:MICREL 制造商全稱:Micrel Semiconductor 功能描述:5A, Low Voltage μCap LDO Regulator |
| MIC37501_11 | 制造商:MICREL 制造商全稱:Micrel Semiconductor 功能描述:5A, Low Voltage μCap LDO Regulator |
| MIC37501-1.5BR | 功能描述:IC REG LDO 1.5V SPAK-7 RoHS:否 類別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - 線性 系列:- 標(biāo)準(zhǔn)包裝:3,000 系列:- 穩(wěn)壓器拓?fù)浣Y(jié)構(gòu):正，固定式 輸出電壓:3.8V 輸入電壓:最高 16V 電壓 - 壓降（標(biāo)準(zhǔn)）:0.3V @ 80mA 穩(wěn)壓器數(shù)量:1 電流 - 輸出:80mA 電流 - 限制（最?。?- 工作溫度:-40°C ~ 125°C 安裝類型:表面貼裝 封裝/外殼:SC-74A，SOT-753 供應(yīng)商設(shè)備封裝:SOT-23-5 包裝:帶卷 (TR) 其它名稱:MIC5203-3.8BM5TRMIC5203-3.8BM5TR-ND |
| MIC37501-1.5BR TR | 功能描述:IC REG LDO 1.5V 7-SPAK RoHS:否 類別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - 線性 系列:- 標(biāo)準(zhǔn)包裝:3,000 系列:- 穩(wěn)壓器拓?fù)浣Y(jié)構(gòu):正，固定式 輸出電壓:3.8V 輸入電壓:最高 16V 電壓 - 壓降（標(biāo)準(zhǔn)）:0.3V @ 80mA 穩(wěn)壓器數(shù)量:1 電流 - 輸出:80mA 電流 - 限制（最?。?- 工作溫度:-40°C ~ 125°C 安裝類型:表面貼裝 封裝/外殼:SC-74A，SOT-753 供應(yīng)商設(shè)備封裝:SOT-23-5 包裝:帶卷 (TR) 其它名稱:MIC5203-3.8BM5TRMIC5203-3.8BM5TR-ND |
| MIC37501-1.5WR | 功能描述:低壓差穩(wěn)壓器 - LDO 5A Low Voltage LDO Regulator(ROHS Compliant) 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(dòng)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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