MCP1701
2 µA Low Dropout Positive Voltage Regulator
Features
• 2.0 µA Typical Quiescent Current
• Input Operating Voltage Range up to 10.0V
• Low Dropout Voltage:
- 250 mV (typ) @ 100 mA
- 500 mV (typ) @ 200 mA
• High Output Current: 250 mA (V
OUT
= 5.0V)
• High-Accuracy Output Voltage: ±2% (max)
• Low Temperature Drift: ±100 ppm/°C (typ.)
• Excellent Line Regulation: 0.2%/V (typ.)
• Package Options: 3-Pin SOT-23A and
3-Pin SOT-89
• Short Circuit Protection
• Standard Output Voltage Options:
- 1.8V, 2.5V, 3.0V, 3.3V, 5.0V
General Description
The MCP1701 is a family of CMOS low dropout (LDO),
positive voltage regulators that can deliver up to
250 mA of current while consuming only 2.0 µA of
quiescent current (typ.). The input operating range is
specified up to 10V, making it ideal for lithium-ion (one
or two cells), 9V alkaline and other two and three
primary cell battery-powered applications.
The MCP1701 is capable of delivering 250 mA with an
input-to-output voltage differential (dropout voltage) of
650 mV. The low dropout voltage extends the battery
operating lifetime. It also permits high currents in small
packages when operated with minimum V
IN
– V
OUT
differentials.
The MCP1701 has a tight tolerance output voltage
regulation of ±0.5% (typ.) and very good line regulation
at ±0.2%. The LDO output is stable when using only
1 µF of output capacitance of either tantalum or
aluminum-electrolytic style capacitors. The MCP1701
LDO also incorporates short circuit protection to ensure
maximum reliability.
Package options include the 3-pin SOT-23A and 3-pin
SOT-89.
Applications
•
•
•
•
•
•
•
•
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Battery-Powered Devices
Battery-Powered Alarm Circuits
Smoke Detectors
CO
2
Detectors
Smart Battery Packs
PDAs
Low Quiescent Current Voltage Reference
Cameras and Portable Video Equipment
Pagers and Cellular Phones
Solar-Powered Instruments
Consumer Products
Microcontroller Power
Package Types
3-Pin SOT-23A
V
IN
3
MCP1701
1
GND
2
V
OUT
MCP1701
1
2
3
GND V
IN
V
OUT
3-Pin SOT-89
V
IN
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
Note:
3-Pin SOT-23A is equivalent to the EIAJ
SC-59.
©
2005 Microchip Technology Inc.
DS21874B-page 1
MICROCHIP [ MICROCHIP TECHNOLOGY ]
