MCP1804T-5002I Datasheet, PDF (1/38 Pages) Microchip Technology – 150 mA, 28V LDO Regulator With Shutdown

MCP1804
150 mA, 28V LDO Regulator With Shutdown
Features
• 150 mA Output Current
• Low Drop Out Voltage, 260 mV typical @ 20 mA,
V_R = 3.3V
• 50 µA Typical Quiescent Current
• 0.01 µA Typical Shutdown Current
• Input Operating Voltage Range: 2.0V to 28.0V
• Standard Output Voltage Options
(1.8V, 2.5V, 3.0V, 3.3V, 5.0V, 10.0V, 12.0V)
• Output Voltage Accuracy: ±2%
• Output voltages from 1.8V to 18.0V in 0.1V
increments are available upon request
• Stable with Ceramic output capacitors
• Current Limit Protection With Current Foldback
• Shutdown pin
• High PSRR: 50 dB typical @ 1 kHz
Applications
• Cordless Phones, Wireless Communications
• PDAs, Notebook and Netbook Computers
• Digital Cameras
• Microcontroller Power
• Car Audio and Navigation Systems
• Home Appliances
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
• AN792, “A Method to Determine How Much
Power a SOT23 Can Dissipate in an Application”,
DS00792, Microchip Technology Inc., ©2001
Description
The MCP1804 is a family of CMOS low dropout (LDO)
voltage regulators that can deliver up to 150 mA of
current while consuming only 50 µA of quiescent
current (typical, 1.8V ≤ V_OUT ≤ 5.0V). The input
operating range is specified from 2.0V to 28.0V.
The MCP1804 is capable of delivering 100 mA with
only 1300 mV (typical) of input to output voltage
differential (V_OUT = 3.3V). The output voltage tolerance
of the MCP1804 at +25°C is a maximum of ±2%. Line
regulation is ±0.15% typical at +25°C.
The LDO input and output is stable with 0.1 µF of input
and output capacitance. Ceramic, tantalum or
aluminum electrolytic capacitors can all be used for
input and output. Overcurrent limit with current foldback
to 40 mA (typical) provides short-circuit protection.
A shutdown (SHDN) function allows the output to be
enabled or disabled. When disabled, the MCP1804
draws only 0.01 µA of current (typical).
Package options include the SOT-23-5 (SOT-25), SOT-
89-3, SOT-89-5, and SOT-223-3.
Package Types
SOT-23-5
V_OUT
5
SHDN
4
SOT-89-5
V_IN
NC
5
4
(Top View)
123
V_IN GND NC
SOT-223
123
V_OUT GND SHDN
SOT-89-3
(Top View)
123
V_OUT GND V_IN
(Top View)
123
V_OUT V_SS V_IN
© 2009 Microchip Technology Inc.
DS22200B-page 1