RT9014_11 Datasheet, PDF (1/12 Pages) Richtek Technology Corporation – Ultra Low Noise 300mA Dual LDO Regulator with POR, NMOS Driver and Requiring No Bypass Capacitor

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.
The 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.
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
The RT9014/A is short circuit thermal folded back z Tiny 10-Lead WDFN Package
protected. The IC lowers its OTP trip point from 165°C to z RoHS Compliant and 100% Lead (Pb)-Free
110°C when output short circuit occurs (V_OUT < 0.4V)
providing maximum safety to end users.
Applications
The RT9014/A can operate stably with very small ceramic
output capacitors, reducing required board space and
component cost. The RT9014/A is available in fixed output
voltages in the WDFN-10L 3x3 package.
Ordering Information
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
RT9014/A-
Package Type
QW : WDFN-10L 3x3 (W-Type)
Available Voltage Version
Lead Plating System
Code Voltage Code Voltage Code
P : Pb Free
A
3.5
B
1.3
C
G : Green (Halogen Free and Pb Free) _D
1.85
E
2.1
F
Output Voltage : VOUT1/VOUT2
VOUT2 > VOUT1 is Recommended
G
1.8
H
2
J
K
2.6
L
2.7
M
Note :
EN Function Independent
EN Function Dependent
Richtek products are :
` RoHS compliant and compatible with the current require-
N
2.85
P
3
Q
R
3.2
S
3.3
T
V
2.9
W
1.6
X
Y
1.9
Voltage
1.2
1.5
2.5
2.8
3.1
2.65
3.15
ments of IPC/JEDEC J-STD-020.
` Suitable for use in SnPb or Pb-free soldering processes.
Marking Information
For marking information, contact our sales representative
directly or through a Richtek distributor located in your
area.
DS9014/A-11 April 2011
www.richtek.com
1