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RT9182 Datasheet(PDF) 1 Page - Richtek Technology Corporation

Part No. RT9182
Description  DUAL, LOW-NOISE, 200mA LDO REGULATOR
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Maker  RICHTEK [Richtek Technology Corporation]
Homepage  http://www.richtek.com
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RT9182 Datasheet(HTML) 1 Page - Richtek Technology Corporation

 
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Preliminary
RT9182
DS9182-02 April 2002
www.richtek-ic.com.tw
1
Dual, Low-Noise, 200mA LDO Regulator
General Description
The RT9182 is a dual-channel, low noise, and low
dropout regulator supplying up to 200mA current at
each channel. The output voltage ranges from 1.5V
to 3.3V in 100mV increments and 2% accuracy by
operating from a +2.7V to +6.5V input.
The RT9182 uses an internal PMOS as the pass
device, which consumes 165
µA supply current (both
LDOs on) independent of load current and dropout
conditions. The SHDN pin controls both outputs
simultaneously and consumes nearly zero operation
current in the disable mode making the IC suitable
for battery-power devices. Other features include a
reference voltage bypass pin to improve low noise
performance, current limiting, and over temperature
protection.
Ordering Information
RT9182
Features
• Up to 200mA Output Current (Each LDO)
• Shutdown Function
• 29µµµµVRMS Low Noise Output
• Current Limiting and Thermal Protection
• Short Circuit Protection
• 120mV Dropout at 100mA Load
• Two LDOs in SOT-26 Package
Applications
Cellular Phones
Laptop, Notebook, and Palmtop Computers
Battery-powered Equipment
Hand-held Equipment
Pin Configurations
Part Number
Pin Configurations
RT9182 CE
(Plastic SOT-26)
TOP VIEW
1. VOUT2
2. GND
3. BP
4. SHDN
5. VIN
6. VOUT1
Typical Application Circuit
Marking Information
Part Number
Marking
RT9182ACE
2M
RT9182BCE
2Q
Operating temperature range
C : Commercial standard
Package type
E : SOT-26
Output voltage
A : 2.8V (Output1), 2.8V (Output2)
B : 3.0V (Output1), 3.0V (Output2)
VOUT1
VOUT2
RT9182
SHDN
BP
VIN
GND
2.2
µF
2.2
µF
2.2
µF
10nF
ON
OFF
VIN
VOUT2
VOUT1
64
3
2
1
5


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