RT9011
1
DS9011-09 July 2017 www.richtek.com
Ordering Information
General Description
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 3.5V 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.
The RT9011 can operate stably with very small ceramic
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.
Portable Power Management 300mA Dual LDO Regulator
Features
Wide Operating Voltage Ranges : 2.5V to 5.5V
Low-Noise for RF Application
No Noise Bypass Capacitor Required
Fast Response in Line/Load Transient
TTL-Logic-Controlled Shutdown Input
Low Temperature Coefficient
Dual LDO Outputs (300mA/300mA)
Ultra-low Quiescent Current 27
μμ
μμ
μA/LDO
High Output Accuracy 2%
Short Circuit Protection
Thermal Shutdown Protection
Current Limit Protection
Short Circuit Thermal Folded Back Protection
Tiny TSOT-23-6 and 6-Lead/8-Lead/10-Lead WDFN
Packages
RoHS Compliant and 100% Lead (Pb)-Free
Applications
CDMA/GSM Cellular Handsets
Battery-Powered Equipment
Laptop, Palmtops, Notebook Computers
Hand-Held Instruments
PCMCIA Cards
Portable Information Appliances
Marking Information
For marking information, contact our sales representative
directly or through a Richtek distributor located in your
area.
Code Voltage Code Voltage Code Voltage
A 3.5 B 1.3 C 1.2
D 1.85 E 2.1 F 1.5
G 1.8 H 2 J 2.5
K 2.6 L 2.7 M 2.8
N 2.85 P 3 Q 3.1
R 3.2 S 3.3 T 2.65
V 2.9 W 1.6 Y 1.9
Z 3.15
Available Voltage Version
Note :
Richtek 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.
RT9011-
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)
Output Voltage : VOUT1/VOUT2
VOUT2 > VOUT1 is Recommended
