RT9011_11 Datasheet, PDF (1/15 Pages) Richtek Technology Corporation – Portable Power Management 300mA Dual LDO Regulator

RT9011
Portable Power Management 300mA Dual LDO Regulator
General Description
Features
The RT9011 is a dual channel, low noise, and low dropout
regulator sourcing up to 300mA at each channel. The range
of output voltage is from 1.2V to 3.6V by operating from
2.5V to 5.5V input.
The RT9011 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.
The RT9011 is short circuit thermal folded back protected.
The IC 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.
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 TSOT-23-6 and 6-Lead/8-Lead/10-Lead WDFN
Packages
The RT9011 can operate stably with very small ceramic z RoHS Compliant and 100% Lead (Pb)-Free
output capacitors, reducing required board space and
component cost. The RT9011 is available in fixed output
voltages in the TSOT-23-6, WDFN-8L 2x2, WDFN-10L 3x3,
WDFN-8L 3x3 and WDFN-6L 1.6x1.6 packages.
Ordering Information
Applications
z CDMA/GSM Cellular Handsets
z Battery-Powered Equipment
z Laptop, Palmtops, Notebook Computers
z Hand-Held Instruments
RT9011-
z PCMCIA Cards
Package Type
J6 : TSOT-23-6
QW : WDFN-8L 2x2 (W-Type)
QWA : WDFN-10L 3x3 (W-Type)
QWB : WDFN-8L 3x3 (W-Type)
QWC : WDFN-6L 1.6x1.6 (W-Type)
Lead Plating System
P : Pb Free
G : Green (Halogen Free and Pb Free)
z Portable Information Appliances
Marking Information
For marking information, contact our sales representative
directly or through a Richtek distributor located in your
area.
Available Voltage Version
Note :
Output Voltage : VOUT1/VOUT2
VOUT2 > VOUT1 is Recommended
Code Voltage Code Voltage Code Voltage
A
3.5
B
1.3
C
1.2
Richtek products are :
D
1.85
E
2.1
F
1.5
` RoHS compliant and compatible with the current require-
G
1.8
H
2
J
2.5
ments of IPC/JEDEC J-STD-020.
K
2.6
L
2.7
M
2.8
` Suitable for use in SnPb or Pb-free soldering processes.
N
2.85
P
3
Q
3.1
R
3.2
S
3.3
T
2.65
V
2.9
W
1.6
X
3.15
Y
1.9
DS9011-08 April 2011
www.richtek.com
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