MIC61150 Datasheet, PDF (1/22 Pages) Micrel Semiconductor – Low Input Voltage, Single-Supply High-Current LDO

MIC61150
Low Input Voltage, Single-Supply
High-Current LDO
General Description
Features
The Micrel MIC61150 is a 1.5A output, low input voltage,
single-supply regulator. This regulator operates over a
single input voltage range of 1.1V to 3.6V and offers an
ultra-low dropout less than 200mV over the entire
operating temperature range.
The MIC61150 is designed to drive digital circuits requiring
low voltages at high currents such as DSPs, FPGAs,
microcontrollers, etc. The regulator is available as a 1.0V
fixed-output voltage option or as an adjustable-output
voltage option.
The MIC61150 is stable with a 22µF, low-ESR ceramic
output capacitor, and includes protection features such as
thermal shutdown, current limiting and logic enable.
The MIC61150 is offered in two different packages: a low-
profile, leadless 10-pin 3mm x 3mm MLF^® and a 10-pin
ePad MSOP. The MIC61150 has an operating junction
temperature range of −40°C to +125°C.
• Single V_IN rail: 1.1V to 3.6V
• Output voltage accuracy: ±2.5% over temperature
• Typical dropout of 75mV at room temperature
– Maximum dropout of 200mV at full load over
temperature
• C_OUT as low as 22µF (ceramic capacitor)
• Output voltage adjustable down to 0.5V
• Soft-start control via external capacitor
• Excellent line and load regulation
• Logic controlled shutdown
• Thermal-shutdown and current-limit protection
• 10-pin 3mm × 3mm MLF^® package
• 10-pin ePad MSOP package
• Junction temperature range from −40°C to +125°C
Data sheets and support documentation can be found on
Micrel’s web site at: www.micrel.com.
Applications
• Point-of-load applications
• ASIC / Microprocessor power supply
• FPGA power supply
• Telecom / Networking cards
• Wireless infrastructure
____________________________________________________________________________________________________________
Typical Application
Dropout Voltage
vs. Output Current
100
V_IN = 1.5V
80
V_FB = 0V
60
T_A = 25ºC
40
20
0
0.0
0.5
1.0
1.5
OUTPUT CURRENT (A)
MLF and MicroLeadFrame are registered trademarks of Amkor Technology, Inc.
Micrel Inc. • 2180 Fortune Drive • San Jose, CA 95131 • USA • tel [phone] • fax + 1 [phone] • http://www.micrel.com
November 2010
M9999-112210-A