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參數(shù)資料
| 型號： | MIC39501-2.5BU |
| 廠商： | MICREL INC |
| 元件分類： | 基準(zhǔn)電壓源/電流源 |
| 英文描述： | 5A Low-Voltage Low-Dropout Regulator Advance Information |
| 中文描述： | 2.5 V FIXED POSITIVE LDO REGULATOR, 0.575 V DROPOUT, PSSO5 |
| 封裝： | TO-263, 5 PIN |
| 文件頁數(shù)： | 1/8頁 |
| 文件大小： | 93K |
| 代理商： | MIC39501-2.5BU |
June 1999
1
MIC39500/39501
MIC39500/39501
Micrel
Ordering Information
Part Number
MIC39500-2.5BT
MIC39500-2.5BU
MIC39501-2.5BT
MIC39501-2.5BU
Voltage
2.5V
2.5V
2.5V
2.5V
Junction Temp. Range
–40
°
C to +125
°
C
–40
°
C to +125
°
C
–40
°
C to +125
°
C
–40
°
C to +125
°
C
Package
3-lead TO-220
3-lead TO-263
5-lead TO-220
5-lead TO-263
MIC39500/39501
5A Low-Voltage Low-Dropout Regulator
Advance Information
General Description
The MIC39500 and MIC39501 is a 5A low-dropout linear
voltage regulator that provides a low-voltage, high-current
output with a minimum of external components. Utilizing
Micrel’s proprietary Super
β
eta PNP pass element, the
MIC39500 offers extremely low dropout (typically 400mV at
5A) and low ground current (typically 70mA at 5A).
The MIC39500 is ideal for PC Add-In cards that need to
convert from standard 5V or 3.3V, down to new, lower core
voltages. A guaranteed maximum dropout voltage of 500mV
over all operating conditions allows the MIC39500 to provide
2.5V from a supply as low as 3V. The MIC39500 also has fast
transient response, for heavy switching applications. The
device requires only 47
μ
F of output capacitance to maintain
stability and achieve fast transient response
The MIC39500 is fully protected with overcurrent limiting,
thermal shutdown, reversed-battery and reversed-lead in-
sertion protection. The MIC39501 offers a TTL-logic-compat-
ible enable pin and an error flag that indicates undervoltage
and overcurrent conditions. The MIC39500 comes in the TO-
220 and TO-263 packages and is 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.
Typical Application
IN
OUT
GND
V
3.3V
V
2.5V
1.0μF
47μF
MIC39500-2.5
MIC39500
Features
5A minimum guaranteed output current
500mV maximum dropout voltage over temperature
1% initial accuracy
Low ground current
Current limiting and thermal shutdown
Reversed-battery and reversed-lead insertion protection
Fast transient response
TO-263 and TO-220 packages
TTL/CMOS compatible enable pin (MIC39501 only)
Error flag output (MIC39501 only)
Applications
LDO linear regulator for PC add-in cards
PowerPC power supplies
High-efficiency linear power supplies
SMPS post regulator
Multimedia and PC processor supplies
Low-voltage microcontrollers
StrongARM processor supply
Micrel, Inc. 1849 Fortune Drive San Jose, CA 95131 USA tel + 1 (408) 944-0800 fax + 1 (408) 944-0970 http://www.micrel.com
StrongARM is a trademark of Advanced RISC Machines, Ltd.
MIC39501-2.5
FLG
OUT
ERROR
FLAG OUTPUT
47μF
EN
GND
IN
V
2.5V
1.0μF
Enable
Shutdown
V
3.3V
100K
MIC39501
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相關(guān)代理商/技術(shù)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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