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MIC37302BU 参数 Datasheet PDF下载

MIC37302BU图片预览
型号: MIC37302BU
PDF下载: 下载PDF文件 查看货源
内容描述: 3.0A ,低压μCap LDO稳压器 [3.0A, Low-Voltage μCap LDO Regulator]
分类和应用: 稳压器
文件页数/大小: 13 页 / 257 K
品牌: MICREL [ MICREL SEMICONDUCTOR ]
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MIC37300/01/02/03
3.0A, Low-Voltage µCap LDO Regulator
General Description
The Micrel MIC37300/01/02/03 is a 3.0A low-dropout
linear voltage regulator that provides a low-voltage,
high-current output with a minimum number of external
components. It offers high precision, ultra-low-dropout
(500mV overtemperature), and low-ground current.
The MIC37300/01/02/03 operates from an input of
2.25V to 6.0V. It is designed to drive digital circuits
requiring low-voltage at high currents (i.e., PLDs, DSP,
microcontroller, etc.). It is available in
fixed
and
adjustable output voltages. Fixed voltages include 1.5V,
1.8V, 2.5V and 3.3V. The adjustable version is capable
of 1.24V to 5.5V.
Features of the MIC37300/01/02/03 LDO include
thermal and current-limit protection, and reverse-current
protection. Logic enable and error
flag
pins are available
on the 5-pin version.
Junction temperature range of the MIC37300/01/02/03
is from–40°C to +125°C.
For applications requiring input voltage greater than
6.0V, see the MIC3910x, MIC3915x, MIC3930x, and
MIC3950x LDOs.
Data sheets and support documentation can be found
on Micrel’s web site at www.micrel.com.
Features
3.0A minimum guaranteed output current
500mV maximum dropout-voltage overtemperature
Ideal for 3.0V to 2.5V conversion
Ideal for 2.5V to 1.8V, 1.65V, or 1.5V conversion
Stable with ceramic or tantalum capacitor
Wide input voltage range
– VIN: 2.25V to 6.0V
+1.0% initial output tolerance
Fixed and adjustable output voltages:
– MIC37300—3-pin
fixed
voltages
– MIC37301—5-pin S-Pak or 8-pin e-Pad SOIC
fixed
voltages with
flag
– MIC37302—5-pin adjustable voltage
– MIC37303—8-pin e-Pad SOIC adjustable
voltage with flag
Excellent line and load regulation specifications
Thermal shutdown and current-limit protection
Reverse-leakage protection
Low profile S-Pak package
Applications
LDO linear regulator for low-voltage digital IC
PC add-in cards
High-efficiency linear power supplies
SMPS post regulator
Battery charger
Typical Application
V
IN
= 3.0V
MIC37300
VIN
VOUT
V
OUT
= 2.5V
C
OUT
47µF, Ceramic
GND
V
IN
C
IN
MIC37302
VIN
VOUT
R1
VEN
GND
ADJ
R2
1.3V
C
OUT
47µF, Ceramic
Fixed 2.5V Regulator
Super ßeta PNP is a registered trademarks of Micrel, Inc.
Adjustable Regulator
Micrel Inc. • 2180 Fortune Drive • San Jose, CA 95131 • USA • tel +1 (408) 944-0800 • fax + 1 (408) 474-1000 • http://www.micrel.com
October 2009
1
M9999-102909