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MCP1701

2 uA Low Dropout Positive Voltage Regulator



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MCP1701 pdf
M
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 (VOUT = 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, 3-Pin SOT-89
and 3-Pin TO-92
• Short-Circuit Protection
• Standard Output Voltage Options:
- 1.8V, 2.5V, 3.0V, 3.3V, 5.0V
Applications
• Battery-Powered Devices
• Battery-Powered Alarm Circuits
• Smoke Detectors
• CO2 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
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
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 (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.
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 VIN – VOUT
differentials.
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.
Package options include the 3-Pin SOT-23A, 3-Pin
SOT-89 and 3-Pin TO-92.
Package Types
3-Pin SOT-23A
VIN
3
3-Pin SOT-89
VIN
MCP1701
MCP1701
1
GND
2
VOUT
1 23
GND VIN VOUT
3-Pin TO-92
1 23
Note:
Bottom
View
GND VIN VOUT
The 3-Pin SOT-23A is equivalent to
the EIAJ SC-59.
2004 Microchip Technology Inc.
DS21874A-page 1



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MCP1701 pdf
MCP1701
Functional Block Diagram
VIN
MCP1701
Short-Circuit
Protection
VOUT
Voltage
Reference
GND
Typical Application Circuits
MCP1701
VOUT
3.3V
IOUT
50 mA
GND
VOUT
COUT
1 µF Tantalum
VIN
9V Alkaline Battery
VIN
CIN
1 µF Tantalum
DS21874A-page 2
2004 Microchip Technology Inc.



Part Number MCP1701
Description 2 uA Low Dropout Positive Voltage Regulator
Maker Microchip Technology - Microchip Technology
Total Page 20 Pages
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