RT9184 Datasheet, PDF (1/10 Pages) Richtek Technology Corporation – 500 MA DUAL LDO REGULATOR

Preliminary
RT9184
500mA Dual LDO Regulator
General Description
The RT9184 is a dual-channel, low noise, and low
dropout regulator supplying up to 500mA current at
each channel. The output voltage ranges from 1.5V
to 3.3V in 100mV increment and 2% accuracy by
operating from a +2.7V to +6.5V input.
The RT9184 uses two internal PMOS as the pass
device, which consumes 185µA supply current (both
LDOs on) independent of load current and dropout
conditions. Other features include a current limiting
and over temperature protection.
Applications
z Desktop Computers
z CD-RW
z LCD Monitor
z Information Appliance
Ordering Information
RT9184… … …
Package type
H : PSOP-8
Operating temperature range
C : Commercial standard
Output voltage
A : 3.3V (Output1), 1.8V (Output2)
B : 3.3V (Output1), 2.5V (Output2)
Other voltage versions please
contact RichTek for detail.
Features
z Up to 500mA Output Current (Each LDO)
z Current Limiting and Thermal Protection
z Short Circuit Protection
z 650mV Dropout at 500mA Load
z Two LDOs in Power SOP-8 Package
Pin Configurations
Part Number
Pin Configurations
RT9184…CH
(Plastic PSOP-8)
TOP VIEW
GND 1
8 VIN
GND ²
7 VIN
GND ³
6 _VOUT1
VOUT2 ⁴
5 NC
Typical Application Circuit
V_{OU T2}
10µF
VOUT2 VOUT1
RT9184
GND
VIN
V_{OU T1}
10µF 10µF
DS9184-00 March 2002
www.richtek-ic.com.tw
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