MIC69502 Datasheet, PDF (1/9 Pages) Micrel Semiconductor – 5A, Low VIN, Low VOUT uCap LDO Regulator

MIC69502
5A, Low V_IN, Low V_OUT µCap LDO
Regulator
General Description
The MIC69502 is a 5A, low dropout linear regulator that
provides low voltage high current outputs with a minimum
of external components. It offers high precision and ultra
low dropout of 500mV under worst case conditions.
The MIC69502 operates from an input voltage of 1.65V to
5.5V. It is designed to drive digital circuits requiring low
voltage at high currents (i.e. PLDs, DSP, microcontroller,
etc.). The MIC69502 output is adjustable to a minimum of
0.5V.
The µCap design of the MIC69502 is optimized for stability
with low value low-ESR ceramic output capacitors.
Protection features of the MIC69502 include thermal
shutdown and current limit protection. Logic enable and
error flag pins are also available.
The MIC69502 is offered in the space-efficient S-PAK
package. It has an operating temperature range of
–40°C to +125°C.
Data sheets and support documentation can be found on
Micrel’s web site at: www.micrel.com.
Features
• Input voltage range: V_IN: 1.65V to 5.5V
• ±1.0% initial output tolerance
• Maximum dropout (V_IN – V_OUT) of 500mV
over temperature
• Adjustable output voltage down to 0.5V
• Stable with 10µF ceramic output capacitor (5A)
• Excellent line and load regulation specifications
• Logic controlled shutdown
• Thermal shutdown and current limit protection
• 7-Pin S-Pak package
• –40°C to +125°C Temperature Junction
Applications
• ASIC Core Voltage Regulator
• PLD/FPGA Core Power Supply
• Linear Point-of-Load Conversion
• High-Speed Post-Regulator
___________________________________________________________________________________________________________
Typical Application
Adjustable Regulator
Dropout Voltage
vs. Temperature
350
300
250
5A
200
150 _2.5A
100
50
V_OUT = 1.8V
C_OUT = 10µF
0
20 40 60 80
TEMPERATURE (°C)
Micrel Inc. • 2180 Fortune Drive • San Jose, CA 95131 • USA • tel [phone] • fax + 1 [phone] • http://www.micrel.com
December 2006
M9999-121406-B