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參數(shù)資料
| 型號： | MIC39501-2.5WUTR |
| 廠商： | MICREL INC |
| 元件分類： | 固定正電壓單路輸出LDO穩(wěn)壓器 |
| 英文描述： | 2.5 V FIXED POSITIVE LDO REGULATOR, 0.575 V DROPOUT, PSSO5 |
| 封裝： | ROHS COMPLIANT, TO-263, 5 PIN |
| 文件頁數(shù)： | 1/10頁 |
| 文件大?。?/td> | 1975K |
| 代理商： | MIC39501-2.5WUTR |
August 2005
1
M9999-082605-B
MIC39500/39501
5A μCap Low-Voltage Low-Dropout Regulator
General Description
The MIC39500 and MIC39501 are 5A low-dropout linear
voltage regulators that provide a low-voltage, high-current
output with a minimum of external components. Utilizing
Micrel’s proprietary Super
β
eta PNP pass element, the
MIC39500/1 offers extremely low dropout (typically 400mV
at 5A) and low ground current (typically 70mA at 5A).
The MIC39500/1 is ideal for PC Add-In cards that need to
convert from standard 2.5V or 3.3V, down to new, lower
core voltages. A guaranteed maximum dropout voltage of
500mV over all operating conditions allows the MIC39500/1
to provide 2.5V from a supply as low as 3V or 1.8V from
2.5V. The MIC39500/1 also has fast transient response, for
heavy switching applications. The device requires only 47μF
of output capacitance to maintain stability and achieve fast
transient response
The MIC39500/1 is fully protected with overcurrent limiting,
thermal shutdown, reversed-battery protection, reversed-
lead insertion protection, and reversed-leakage protection.
The MIC39501 offers a TTL-logic-compatible enable pin and
an error flag that indicates undervoltage and overcurrent
conditions. Offered in a fixed voltages, 1.8V and 2.5V, the
MIC39500/1 comes in the TO-220 and TO-263 packages
and an ideal upgrade to older, NPN-based linear voltage
regulators.
For applications requiring input voltage
greater than 16V, see the
MIC29500/1/2/3 family. For applications
with input voltage 6V or below, see
MIC3750x LDOs.
Typical Application
IN
OUT
GND
V
IN
3.3V
V
OUT
2.5V
1.0
μ
F
47
μ
F
MIC39500-2.5
MIC39500
Features
5A minimum guaranteed output current
400mV dropout voltage
Ideal for 3.0V to 2.5V conversion
Ideal for 2.5V to 1.8V conversion
1% initial accuracy
Low ground current
Current limiting and thermal shutdown
Reversed-battery and reversed-lead insertion protection
Reversed-leakage protection
Fast transient response
TO-263 and TO-220 packages
TTL/CMOS compatible enable pin (MIC39501 only)
Error flag output (MIC39501 only)
Ceramic capacitor stable (See Application Information)
Applications
Low Voltage Digital ICs
LDO linear regulator for PC add-in cards
High-efficiency linear power supplies
SMPS post regulator
Multimedia and PC processor supplies
Low-voltage microcontrollers
StrongARM processor supply
StrongARM is a trademark of Advanced RISC Machines, Ltd.
MIC39501-2.5
FLG
OUT
ERROR
FLAG OUTPUT
47
μ
F
EN
GND
IN
V
OUT
2.5V
1.0
μ
F
Enable
Shutdown
V
IN
3.3V
100K
Micrel, Inc. 2180 Fortune Drive San Jose, CA 95131 USA tel + 1 (408) 944-0800 fax + 1 (408) 474-1000 http://www.micrel.com
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相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| MIC-3951 | 制造商:ADVANTECH 制造商全稱:Advantech Co., Ltd. 功能描述:6U CompactPCI? Dual PMC or CMC Carrier Board (64-bit/66 MHz) |
| MIC-3951-AE | 制造商:ADVANTECH 制造商全稱:Advantech Co., Ltd. 功能描述:6U CompactPCI? Dual PMC or CMC Carrier Board (64-bit/66 MHz) |
| MIC-3960 | 制造商:ADVANTECH 制造商全稱:Advantech Co., Ltd. 功能描述:6U CompactPCI? Media Carrier Board |
| MIC-3960-AE | 制造商:ADVANTECH 制造商全稱:Advantech Co., Ltd. 功能描述:6U CompactPCI? Media Carrier Board |
| MIC-3961 | 制造商:ADVANTECH 制造商全稱:Advantech Co., Ltd. 功能描述:6U CompactPCI? PCI Carrier Board |
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