MCP1804 150 mA, 28V LDO Regulator With Shutdown Features: Description: 150 mA Output Current The MCP1804 is a family of CMOS low dropout (LDO) voltage regulators that can deliver up to 150 mA of Low Dropout Voltage, 260 mV Typical 20 mA, current while consuming only 50A of quiescent V =3.3V R current (typical, 1.8V V 5.0V). The input OUT 50 A Typical Quiescent Current operating range is specified from 2.0V to 28.0V. 0.01 A Typical Shutdown Current The MCP1804 is capable of delivering 100 mA with Input Operating Voltage Range: 2.0V to 28.0V only 1300mV (typical) of input to output voltage Standard Output Voltage Options = 3.3V). The output voltage tolerance differential (V OUT (1.8V, 2.5V, 3.0V, 3.3V, 5.0V, 10.0V, 12.0V) of the MCP1804 at +25C is a maximum of 2%. Line Output Voltage Accuracy: 2% regulation is 0.15% typical at +25C. Output Voltages from 1.8V to 18.0V in 0.1V The LDO input and output are stable with 0.1 F of Increments are Available upon Request input and output capacitance. Ceramic, tantalum or Stable with Ceramic Output Capacitors aluminum electrolytic capacitors can all be used for Current Limit Protection with Current Foldback input and output. Overcurrent limit with current foldback to 40mA (typical) provides short circuit protection. Shutdown Pin A shutdown (SHDN) function allows the output to be High PSRR: 50 dB Typical 1 kHz enabled or disabled. When disabled, the MCP1804 draws only 0.01 A of current (typical). Applications: Package options include the 3-lead SOT-89, 3-lead Cordless Phones, Wireless Communications SOT-223, 5-lead SOT-23 and 5-lead SOT-89. PDAs, Notebook and Netbook Computers Digital Cameras Package Types Microcontroller Power SOT-89-3 SOT-223-3 Car Audio and Navigation Systems Home Appliances Related Literature: (Top View) (Top View) AN765, Using Microchips Micropower LDOs (DS00765), Microchip Technology Inc., 2002 12 3 12 3 AN766, Pin-Compatible CMOS Upgrades to BiPolar LDOs (DS00766), Microchip Technology V V GND V V GND OUT IN OUT IN Inc., 2002 AN792, A Method to Determine How Much Power a SOT23 Can Dissipate in an Application SOT-89-5 SOT-23-5 (DS00792), Microchip Technology Inc., 2001 V V SHDN IN NC OUT 54 54 (Top View) 12 3 123 V GND NC V GND SHDN OUT IN 2009-2013 Microchip Technology Inc. DS20002200D-page 1MCP1804 Functional Block Diagram V V IN OUT * Thermal Protection SHDN Shutdown Voltage Control - Reference Current Limiter + Error Amplifier GND *5-Pin Versions Only Typical Application Circuit MCP1804 V IN V OUT V V 5 1 IN OUT 5.0V 30 mA SOT-23 C OUT 1F Ceramic GND 2 + 12V Battery SHDN 3 4 NC C IN 1F Ceramic DS20002200D-page 2 2009-2013 Microchip Technology Inc.