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MCP73837T-NVI/MF 其他数据使用手册 - Microchip（微芯）
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MCP73837T-NVI/MF数据手册
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© 2007 Microchip Technology Inc. DS21826B-page 1
MCP1700
Features
• 1.6 µA Typical Quiescent Current
• Input Operating Voltage Range: 2.3V to 6.0V
• Output Voltage Range: 1.2V to 5.0V
• 250 mA Output Current for output voltages ≥ 2.5V
• 200 mA Output Current for output voltages < 2.5V
• Low Dropout (LDO) voltage
- 178 mV typical @ 250 mA for V
OUT
= 2.8V
• 0.4% Typical Output Voltage Tolerance
• Standard Output Voltage Options:
- 1.2V, 1.8V, 2.5V, 3.0V, 3.3V, 5.0V
• Stable with 1.0 µF Ceramic Output capacitor
• Short Circuit Protection
• Overtemperature Protection
Applications
• Battery-powered Devices
• Battery-powered Alarm Circuits
• Smoke Detectors
•CO
2
Detectors
• Pagers and Cellular Phones
• Smart Battery Packs
• Low Quiescent Current Voltage Reference
•PDAs
• Digital Cameras
• Microcontroller Power
Related Literature
• AN765, “Using Microchip’s Micropower LDOs”,
DS00765, Microchip Technology Inc., 2002
• AN766, “Pin-Compatible CMOS Upgrades to
BiPolar LDOs”, DS00766,
Microchip Technology Inc., 2002
• AN792, “A Method to Determine How Much
Power a SOT23 Can Dissipate in an Application”,
DS00792, Microchip Technology Inc., 2001
General Description
The MCP1700 is a family of CMOS low dropout (LDO)
voltage regulators that can deliver up to 250 mA of
current while consuming only 1.6 µA of quiescent
current (typical). The input operating range is specified
from 2.3V to 6.0V, making it an ideal choice for two and
three primary cell battery-powered applications, as well
as single cell Li-Ion-powered applications.
The MCP1700 is capable of delivering 250 mA with
only 178 mV of input to output voltage differential
(V
OUT
= 2.8V). The output voltage tolerance of the
MCP1700 is typically ±0.4% at +25°C and ±3%
maximum over the operating junction temperature
range of -40°C to +125°C.
Output voltages available for the MCP1700 range from
1.2V to 5.0V. The LDO output is stable when using only
1 µF output capacitance. Ceramic, tantalum or
aluminum electrolytic capacitors can all be used for
input and output. Overcurrent limit and overtemperature
shutdown provide a robust solution for any application.
Package options include the SOT-23, SOT-89 and
TO-92.
Package Types
1
3
2
V
IN
GND V
OUT
MCP1700
1
2
3
V
IN
GND V
OUT
MCP1700
3-Pin SOT-23 3-Pin SOT-89
321
GND V
IN
V
OUT
MCP1700
3-Pin TO-92
V
IN
Low Quiescent Current LDO
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