MCP1703

Features:

• 2.0 A Typical Quiescent Current
• Input Operating Voltage Range: 2.7V to16.0V
• 250 mA Output Current for Output Voltages > 2.5V
• 200 mA Output Current for Output Voltages < 2.5V
• Low Drop Out Voltage, 625 mV typical @ 250 mA for V_R = 2.8V
• 0.4% Typical Output Voltage Tolerance
• Standard Output Voltage Options (1.2V, 1.5V, 1.8V, 2.5V, 2.8V, 3.0V, 3.3V, 4.0V, 5.0V)
• Output voltage range 1.2V to 5.5V in 0.1V increments (50 mV increments available upon request)
• Stable with 1.0 F to 22 F output capacitance
• Short-Circuit Protection
• Overtemperature Protection




Application

• Battery-powered Devices
• Battery-powered Alarm Circuits
• Smoke Detectors
• CO² Detectors
• Pagers and Cellular Phones
• Smart Battery Packs
• Low Quiescent Current Voltage Reference
• PDAs
• Digital Cameras
• Microcontroller Power
• Solar-Powered Instruments
• Consumer Products
• Battery Powered Data Loggers




Specifications

Parameter NameValueMax Input Voltage16Output Voltage (v)1.2,1.5,1.8, 2.5, 2.8,3.0, 3.3, 4.0,5.0Typical Active Current (A)2Typical Dropout Voltage @ Max. lout (mV)625Typical Output Voltage Accuracy (%)0.4Output Capacitor TypeCeramic/Aluminum/Tantalum

Parameter Name	Value
Max Input Voltage	16
Output Voltage (v)	1.2,1.5,1.8, 2.5, 2.8,3.0, 3.3, 4.0,5.0
Typical Active Current (A)	2
Typical Dropout Voltage @ Max. lout (mV)	625
Typical Output Voltage Accuracy (%)	0.4
Output Capacitor Type	Ceramic/Aluminum/Tantalum

V_DD.................................................................................+18V
All inputs and outputs w.r.t. .............(V_SS-0.3V) to (V_IN+0.3V)
Peak Output Current ...................................................500 mA
Storage temperature .................................-65°C to +150°C
Maximum Junction Temperature................................. +150°C
Operating Junction Temperature..................-40°C to +125°C
ESD protection on all pins (HBM;MM)............... > 4 kV; > 400V

† Notice: Stresses above those listed under "Maximum Ratings"
may cause permanent damage to the device. This is a
stress rating only and functional operation of the device at
those or any other conditions above those indicated in the
operational listings of this specification is not implied. Exposure
to maximum rating conditions for extended periods may
affect device reliability.




Description

The MCP1703 is a CMOS, low dropout voltage regulator with 250 mA maximum output. MCP1703 works with input voltage of up to 16V and in combination with its low current consumption of 2 A is an ideal solution for applications using multi-cell, 9V alkaline or one- or two- and three- cell lithium-ion batteries. It is available in space efficient SOT23a and SOT89 packages or in a thermally capable 3-pin SOT223.

The MCP1703 is a family of CMOS low dropout (LDO) voltage regulators that can deliver up to 250 mA of current while consuming only 2.0 A of quiescent current (typical). The input operating range is specified from 2.7V to 16.0V, making it an ideal choice for two to six primary cell battery-powered applications, 9V alkaline and one or two cell Li-Ion-powered applications.

The MCP1703 is capable of delivering 250 mA with only 625 mV (typical) of input to output voltage differential (V_OUT = 2.8V). The output voltage tolerance of the MCP1703 is typically ±0.4% at +25°C and ±3% maximum over the operating junction temperature range of -40°C to +125°C. Line regulation is ±0.1% typical at +25°C.

Output voltages available for the MCP1703 range from 1.2V to 5.5V. The LDO output is stable when using only 1 F of 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-223-3, SOT-23A, and SOT-89-3.