MIC47150 Datasheet PDF - MICREL



Part Number MIC47150
Description 1.5A / Low Voltage Adjustable High-Bandwidth LDO Regulator
Page 11 Pages

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1.5A, Low Voltage, Adjustable, High-
Bandwidth LDO Regulator with Dual Input
General Description
The MIC47150 is a high-bandwidth, low-dropout, 1.5A volt-
age regulator ideal for powering core voltages of low-
power microprocessors. The MIC47150 implements a dual
supply conguration allowing for very low output
impedance and very fast transient response.
The MIC47150 requires a bias input supply between 3V
and 6.5V for proper operation. The main input supply rail
operates from 1.4V to 6.5V that allows for adjustable
output voltages down to 0.9V.
The MIC47150 requires a minimum of 1µF output
capacitance for stability, and optimal operation is achieved
with small ceramic capacitors.
The MIC47150 is available in a 5-pin power D-Pak
package (TO-252) with an operating temperature range of
–40°C to +125°C.
Datasheets and support documentation can be found on
Micrel’s web site at www.micrel.com.
Input Voltage Range:
– VIN: 1.4V to 6.5V
– VBIAS: 3.0V to 6.5V
Stable with 1µF ceramic capacitor
±1% initial tolerance
Maximum dropout voltage (VIN–VOUT) of 500mV
over temperature
Adjustable output voltage down to 0.9V
Ultra fast transient response (Up to 10MHz bandwidth)
Excellent line and load regulation specifications
Power D-Pak package (TO-252)
Thermal shutdown and current-limit protection
Junction temperature range: –40°C to +125°C
Graphics processors
PC add-in cards
Microprocessor core voltage supply
Low voltage digital ICs
High efficiency linear power supplies
SMPS post regulators
Typical Application*
Figure 1. Typical Application Circuit
*See Thermal Design Section
Micrel Inc. • 2180 Fortune Drive • San Jose, CA 95131 • USA • tel +1 (408) 944-0800 • fax + 1 (408) 474-1000 • http://www.micrel.com
October 2009

MIC47150 datasheet pdf
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MIC47150 1.5A / Low Voltage Adjustable High-Bandwidth LDO Regulator MIC47150
MIC47150 pdf

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