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RS7103
Low Power 300mA CMOS LDO with Enable
General Description
The RS7103 is a low‐dropout linear regulator that operates in the input voltage range from +2.5V to +9.0V and delivers
300mA output current.
The high‐accuracy output voltage is preset at an internally trimmed voltage 2.5V or 3.3V. Other output voltages can be
mask‐optioned from 1.5V to 5.0V with 100mV increment.
The RS7103 consists of a 1.25V reference, an error amplifier, a P‐channel pass transistor, and an enable/disable logic
circuit. Other features include short‐circuit protection, soft start function, and thermal shutdown protection. The RS7103
device is available in SOT‐25 package.
Features
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Operating Voltages Range：+2.5V to +9.0V
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Output Voltages Range：+1.5V to +5.0V with 100mV
Increment
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Maximum Output Current：300mA
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Low Dropout: 400mV@300mA (Typ.)
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±2% Output Voltage Accuracy
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High Ripple Rejection：60dB
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Output Current Limit Protection (500mA)
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Short Circuit Protection (260mA)
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Thermal Overload Shutdown Protection
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Low ESR Capacitor Compatible
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Control Output ON/OFF function
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SOT‐25 Packages
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RoHS Compliant and 100% Lead (Pb)‐Freeand Green
(Halogen Free with Commercial Standard)
Applications
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Battery‐powered equipment
Voltage regulator for microprocessor
Voltage regulator for LAN cards
Wireless Communication equipment
Audio/Video equipment
Post Regulator for Switching Power
Home Electric/Electronic Appliance
Application Circuits
Soft‐Start Function
V
IN
=6V I
OUT
=100mA, C
IN
=C
OUT
=1uF(ceramic) T
A
=25°C
DS‐RS7103‐02
September, 2009
www.Orister.com
ORISTER [ ORISTER CORPORATION ]
