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  Microchip Technology Semiconductor Electronic Components Datasheet  

MCP1701A Datasheet

Low-Dropout Positive Voltage Regulator

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MCP1701A pdf
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MCP1701A
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 (LDO):
- 120 mV (typical) @ 100 mA
- 380 mV (typical) @ 200 mA
• High Output Current: 250 mA (VOUT = 5.0V)
• High-Accuracy Output Voltage: ±2% (max)
• Low Temperature Drift: ±100 ppm/°C (typical)
• Excellent Line Regulation: 0.2%/V (typical)
• 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
General Description
The MCP1701A is a family of CMOS low-dropout,
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 MCP1701A 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 MCP1701A offers improved startup
and transient response.
The MCP1701A 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 MCP1701A
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
MCP1701A
MCP1701A
1
GND
2
VOUT
1 23
GND VIN VOUT
3-Pin TO-92
1 23
Bottom
View
GND VIN VOUT
Note: 3-Pin SOT-23A is equivalent to the EIAJ
SC-59.
© 2007 Microchip Technology Inc.
DS21991C-page 1



  Microchip Technology Semiconductor Electronic Components Datasheet  

MCP1701A Datasheet

Low-Dropout Positive Voltage Regulator

No Preview Available !

MCP1701A pdf
MCP1701A
Functional Block Diagram
VIN
MCP1701A
Short-Circuit
Protection
VOUT
Voltage
Reference
GND
Typical Application Circuits
MCP1701A
VOUT
3.3V
IOUT
50 mA
GND
VOUT
COUT
1 µF Tantalum
VIN
9V Alkaline Battery
VIN
CIN
1 µF Tantalum
DS21991C-page 2
© 2007 Microchip Technology Inc.



  Microchip Technology Semiconductor Electronic Components Datasheet  

MCP1701A Datasheet

Low-Dropout Positive Voltage Regulator

No Preview Available !

MCP1701A pdf
MCP1701A
1.0 ELECTRICAL
CHARACTERISTICS
Absolute Maximum Ratings †
Input Voltage ........................................................+12V
Output Current (Continuous)..........PD/(VIN – VOUT)mA
Output Current (peak) ..................................... 500 mA
Output Voltage ............... (GND – 0.3V) to (VIN + 0.3V)
Continuous Power Dissipation:
3-Pin SOT-23A ............................................ 150 mW
3-Pin SOT-89............................................... 500 mW
3-Pin TO-92 ................................................. 300 mW
† Notice: Stresses above those listed under “Absolute
Maximum Ratings” may cause permanent damage to the
device. These are stress ratings only and functional operation
of the device at these or any other conditions above those
indicated in the operation sections of the specifications is not
implied. Exposure to Absolute Maximum Rating conditions for
extended periods may affect device reliability.
ELECTRICAL CHARACTERISTICS
Electrical Specifications: Unless otherwise specified, all limits are established for an ambient temperature of TA = +25°C.
Parameters
Sym
Min Typ
Max Units
Conditions
Output Voltage Regulation
VOUT
VR - 2% VR±0.5% VR + 2% V IOUT = 40 mA (Note 1)
Maximum Output Current
Load Regulation (Note 3)
Dropout Voltage
Input Quiescent Current
Line Regulation
Input Voltage
Temperature Coefficient of
Output Voltage
IOUTMAX
ΔVOUT/ VOUT
VIN - VOUT
IQ
ΔVOUT•100
ΔVIN•VOUT
VIN
TCVOUT
250
200
150
150
125
110
-1.60
-2.25
-2.72
-3.00
-3.60
-1.60
±0.8
±1.1
±1.3
±1.5
±1.8
±0.8
380
400
400
400
400
180
2.0
0.2
±100
+1.60
+2.25
+2.72
+3.00
+3.60
+1.60
600
630
700
700
700
300
4.5
0.3
mA VOUT = 5.0V (VIN = VR + 1.0V)
VOUT = 4.0V
VOUT = 3.3V
VOUT = 3.0V
VOUT = 2.5V
VOUT = 1.8V
% VOUT = 5.0V, 1 mA IOUT 100 mA
VOUT = 4.0V, 1 mA IOUT 100 mA
VOUT = 3.3V, 1 mA IOUT 80 mA
VOUT = 3.0V, 1 mA IOUT 80 mA
VOUT = 2.5V, 1 mA IOUT 60 mA
VOUT = 1.8V, 1 mA IOUT 30 mA
mV IOUT = 200 mA, VR = 5.0V
IOUT = 200 mA, VR = 4.0V
IOUT = 150 mA, VR = 3.3V
IOUT = 150 mA, VR = 3.0V
IOUT = 120 mA, VR = 2.5V
IOUT = 20 mA, VR = 1.8V
µA VIN = VR + 1.0V
%/V IOUT = 40 mA, (VR +1) VIN 10.0V
10 V
— ppm/ IOUT = 40 mA, -40°C TA ≤ +85°C
°C (Note 2)
Output Rise Time
TR
— 200
— µs 10% VR to 90% VR, VIN = 0V to VR +1V,
RL = 25Ω resistive
1: VR is the nominal regulator output voltage. For example: VR = 1.8V, 2.5V, 3.3V, 4.0V, 5.0V.
The input voltage VIN = VR + 1.0V, IOUT = 40 mA.
2: TCVOUT = (VOUT-HIGH – VOUT-LOW) *106 / (VR * ΔTemperature), VOUT-HIGH = Highest voltage measured
over the temperature range. VOUT-LOW = Lowest voltage measured over the temperature range.
3: Load regulation is measured at a constant junction temperature using low duty cycle pulse testing.
© 2007 Microchip Technology Inc.
DS21991C-page 3




Part Number MCP1701A
Description Low-Dropout Positive Voltage Regulator
Maker Microchip Technology
Total Page 22 Pages
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