RT9012 Datasheet, PDF (1/11 Pages) Richtek Technology Corporation – 300mA Dual LDO Regulator with POR

Preliminary
RT9012
300mA Dual LDO Regulator with POR
General Description
Features
RT9012 is a dual channel, low noise, and low dropout with
the sourcing ability up to 300mA and power-on reset
function. The range of output voltage is from 1.2V to 3.6V
by operating from 2.5V to 5.5V input.
RT9012 offers 2% accuracy, extremely low dropout voltage
(240mV @ 300mA), and extremely low ground current,
only 27μA per LDO. The shutdown current is near zero
current which is suitable for battery-power devices. Other
features include current limiting, over temperature, output
short circuit protection.
RT9012 is short circuit thermal folded back protected.
RT9012 lowers its OTP trip point from 165°C to 110°C
when output short circuit occurs (VOUT < 0.4V) providing
maximum safety to end users.
RT9012 can operate stably with very small ceramic output
capacitors, reducing required board space and component
cost. RT9012 is available in fixed output voltages in the
WDFN-8L 2x2 package.
Ordering Information
RT9012-
Package Type
QW : WDFN-8L 2x2 (W-Type)
Operating Temperature Range
P : Pb Free with Commercial Standard
G : Green (Halogen Free with Commer-
cial Standard)
Output Voltage : VOUT1/VOUT2
CM : 1.20V/2.80V, FM : 1.50V/2.80V
FS : 1.50V/3.30V, GK : 1.80V/2.60V
GM : 1.80V/2.80V, GP : 1.80V/3.00V
GS : 1.80V/3.30V, JG : 2.50V/1.80V
JM : 2.50V/2.80V, JP : 2.50V/3.00V
JS : 2.50V/3.30V, JN : 2.50V/2.85V
MG : 2.80V/1.80V, MM : 2.80V/2.80V
NN : 2.85V/2.85V, PP : 3.00V/3.00V
Note :
Richtek Pb-free and Green products are :
`RoHS compliant and compatible with the current require-
ments of IPC/JEDEC J-STD-020.
`Suitable for use in SnPb or Pb-free soldering processes.
`100% matte tin (Sn) plating.
z Wide Operating Voltage Ranges : 2.5V to 5.5V
z Low-Noise for RF Application
z No Noise Bypass Capacitor Required
z Fast Response in Line/Load Transient
z TTL-Logic-Controlled Shutdown Input
z Low Temperature Coefficient
z Dual LDO Outputs (300mA/300mA)
z Ultra-low Quiescent Current 27μA/LDO
z High Output Accuracy 2%
z Short Circuit Protection
z Thermal Shutdown Protection
z Current Limit Protection
z Short Circuit Thermal Folded Back Protection
z Tiny 8-Lead WDFN Package
z RoHS Compliant and 100% Lead (Pb)-Free
Applications
z CDMA/GSM Cellular Handsets
z Battery-Powered Equipment
z Laptop, Palmtops, Notebook Computers
z Hand-Held Instruments
z PCMCIA Cards
z Portable Information Appliances
Pin Configurations
(TOP VIEW)
VIN 1
EN1 2
EN2 3
SET 4
8 VOUT1
7 VOUT2
6 POR
9 _{5 GND}
WDFN-8L 2x2
Marking Information
For marking information, contact our sales representative
directly or through a Richtek distributor located in your
area, otherwise visit our website for detail.
DS9012-06 August 2007
www.richtek.com
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