RT9014 Datasheet, PDF (1/12 Pages) Richtek Technology Corporation – Ultra Low Noise 300mA Dual LDO Regulator with POR, NMOS Driver and Requiring No Bypass Capacitor

Preliminary
RT9014/A
Ultra Low Noise 300mA Dual LDO Regulator with POR,
NMOS Driver and Requiring No Bypass Capacitor
General Description
Features
RT9014/A is a dual channel, low noise, and low dropout
with the sourcing ability up to 300mA, an open drain driver
and power-on reset function. The open-drain output is
capable of sinking 150mA for LED backlighting
applications.
The range of output voltage is from 1.2V to 3.6V by
operating from 2.5V to 5.5V input.
RT9014/A 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.
RT9014/A is short circuit thermal folded back protected.
RT9014/A lowers its OTP trip point from 165°C to 110°C
when output short circuit occurs (V_OUT < 0.4V) providing
maximum safety to end users.
RT9014/A can operate stably with very small ceramic
output capacitors, reducing required board space and
component cost. RT9014/A is available in fixed output
voltages in the WDFN-10L 3x3 package.
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
EN 2
NC 3
SW 4
SET 5
GND
11
10 VOUT1
9 VOUT2
8 POR
7 DRV
GND
VIN 1
EN1 2
EN2 3
SW 4
SET 5
GND
11
10 VOUT1
9 VOUT2
8 POR
7 DRV
GND
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 1 Open-Drain Driver
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 10-Lead WDFN Package
z RoHS Compliant and 100% Lead (Pb)-Free
Ordering Information
RT9014/A-
Package Type
QW : WDFN-10L 3x3 (W-Type)
Operating Temperature Range
P : Pb Free with Commercial Standard
G : Green (Halogen Free with Commer-
cial Standard)
Output Voltage : VOUT1/VOUT2
FM : 1.50V/2.80V, FP : 1.50V/3.00V
GK : 1.80V/2.60V, GM : 1.80V/2.80V
GP : 1.80V/3.00V, JG : 2.50V/1.80V
JM : 2.50V/2.80V, JP : 2.50V/3.00V
JN : 2.50V/2.85V, PJ : 3.00V/2.50V
PP : 3.00V/3.00V, CS : 1.2V/3.3V
EN Function Independent
EN Function Dependent
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.
RT9014
RT9014A
WDFN-10L 3x3
DS9014/A-08 August 2007
www.richtek.com
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