Document
MIC5265 www.DataSheet4U.com
150mA µCap LDO Regulator
General Description
The MIC5265 is a 150mA LDO in lead-free Thin SOT-23-5 packaging ideal for applications where cost is the priority. The MIC5265 is ideal for any application in portable electronics, including both RF and Digital applications. With low output noise and high PSRR, the MIC5265 is ideal for noise sensitive applications such as RF. While the fast transient response and active shutdown circuitry makes it well-suited for powering digital circuitry. The MIC5265 has a 2.7V to 5.5V input operating voltage range, making it ideal for operation from a single cell lithium ion battery or fixed 3.3V and 5V systems. The MIC5265 come with an enable pin and can be put into a zero off-mode current state. The MIC5265 offers low dropout voltage (210mV at 150mA), low output noise (57µVrms), high PSRR and integrates an active shutdown circuit on the output of each regulator to discharge the output voltage when disabled. Data sheets and supporting documentation can be found on Micrel’s web site at: www.micrel.com
Features
• • • • • • • • • 2.7V to 5.5V supply voltage. Low 75µA quiescent current per LDO. Thin SOT-23-5 package. Low Noise – 57µVrms. High PSRR – 60dB at 1kHz. Low dropout voltage – 210mV at 150mA. Stable with ceramic output capacitors. Fast transient response. Active shutdown.
Applications
• • • Cellular Telephones PDAs GPS Receivers
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Typical Application
MIC5265-xxYD5 VIN EN 1µF BYP 0.01µF GND 1µF RF Receiver VOUT Rx/Synth
-80 -70 -60 -50 -40 -30 -20 VIN = VOUT + 1V VOUT = 3.1V -10 BYP = 0.1µF COUT = 1µF 0 0.01 0.1 1 10 100 FREQUENCY (kHz)
Power Supply Rejection Ratio
1000
RF Power Supply
Micrel Inc. • 2180 Fortune Drive • San Jose, CA 95131 • USA • tel +1 (408) 944-0800 • fax + 1 (408) 474-1000 • http://www.micrel.com
April 2005
M9999-041505 (408) 955-1690
Micrel, Inc.
MIC5265
www.DataSheet4U.com
Ordering Information
Part Number Output Voltage Marking Code Junction Temp. Range Package
MIC5265-1.5YD5 MIC5265-1.8YD5 MIC5265-2.5YD5 MIC5265-2.6YD5 MIC5265-2.8YD5 MIC5265-2.9YD5 MIC5265-3.0YD5 MIC5265-3.1YD5 MIC5265-3.3YD5
1.5V 1.8V 2.5V 2.6V 2.8V 2.9V 3.0V 3.1V 3.3V
N715 N718 N725 N726 N728 N72J N730 N731 N733
–40°C to +125°C –40°C to +125°C –40°C to +125°C –40°C to +125°C –40°C to +125°C –40°C to +125°C –40°C to +125°C –40°C to +125°C –40°C to +125°C
Pb-Free Thin SOT-23-5 Pb-Free Thin SOT-23-5 Pb-Free Thin SOT-23-5 Pb-Free Thin SOT-23-5 Pb-Free Thin SOT-23-5 Pb-Free Thin SOT-23-5 Pb-Free Thin SOT-23-5 Pb-Free Thin SOT-23-5 Pb-Free Thin SOT-23-5
Note: 1. Other Voltage Combinations available. Contact Micrel, Inc. for details.
April 2005
2
M9999-041505 (408) 955-1690
Micrel, Inc.
MIC5265
www.DataSheet4U.com
Pin Configuration
EN GND VIN 1 3 2
4 BYP
5 OUT
Lead-Free Thin SOT-23-5 (YD5)
Pin Description
Pin Number 1 2 3 4 5 Pin Name IN GND EN BYP OUT Pin Function .