MCP1701
M
2 µA Low Dropout Positive Voltage Regulator
Features
General Description
• 2.0 µA Typical Quiescent Current
• Input Operating Voltage Range up to 10.0V
• Low Dropout Voltage:
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 (typical). 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.
- 250 mV (typ.) @ 100 mA
- 500 mV (typ.) @ 200 mA
• High Output Current: 250 mA (V
= 5.0V)
OUT
• High-Accuracy Output Voltage: ±2% (max)
• Low Temperature Drift: ±100 ppm/°C (typ.)
• Excellent Line Regulation: 0.2%/V (typ.)
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
• Package Options: 3-Pin SOT-23A, 3-Pin SOT-89
packages when operated with minimum V – V
IN
OUT
and 3-Pin TO-92
differentials.
• Short-Circuit Protection
The MCP1701 has a tight tolerance output voltage
regulation of ±0.5% (typical) and very good line regula-
tion 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.
• Standard Output Voltage Options:
- 1.8V, 2.5V, 3.0V, 3.3V, 5.0V
Applications
• Battery-Powered Devices
• Battery-Powered Alarm Circuits
• Smoke Detectors
Package options include the 3-Pin SOT-23A, 3-Pin
SOT-89 and 3-Pin TO-92.
2
• CO Detectors
• Smart Battery Packs
• PDAs
Package Types
• Low Quiescent Current Voltage Reference
• Cameras and Portable Video Equipment
• Pagers and Cellular Phones
• Solar-Powered Instruments
• Consumer Products
3-Pin SOT-23A
3-Pin SOT-89
V
V
IN
3
IN
MCP1701
MCP1701
• Microcontroller Power
1
2
1
2
3
GND
V
GND V
V
OUT
IN OUT
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
3-Pin TO-92
1 2 3
Bottom
View
GND V
V
IN OUT
Note:
The 3-Pin SOT-23A is equivalent to
the EIAJ SC-59.
2004 Microchip Technology Inc.
DS21874A-page 1