RT9016 Datasheet, PDF (1/11 Pages) Richtek Technology Corporation – 500mA Peak, Thermal Folded Back CMOS LDO Regulator

Preliminary
RT9016
500mA Peak, Thermal Folded Back CMOS LDO Regulator
General Description
The RT9016 is designed for portable RF and wireless
applications with demanding performance and space
requirements. The RT9016 performance is optimized for
battery-powered systems to deliver ultra low noise and
low quiescent current. A noise bypass pin is available for
further reduction of output noise. Regulator ground current
increases only slightly in dropout, further prolonging the
battery life. The RT9016 also works with low-ESR ceramic
capacitors, reducing the amount of board space necessary
for power applications, critical in hand-held wireless
devices. The RT9016 consumes less than 0.01μA in
shutdown mode and has fast turn-on time less than 50μs.
RT9016 is short circuit thermal folded back protected.
RT9016 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. The other features include
ultra low dropout voltage, high output accuracy, current
limiting protection, and high ripple rejection ratio. Available
in the SOT-23-5 and WDFN-6L 2x2 packages.
Ordering Information
RT9016-
Package Type
B : SOT-23-5
QW : WDFN-6L 2x2 (W-Type)
Operating Temperature Range
P : Pb Free with Commercial Standard
G : Green (Halogen Free with Commer-
cial Standard)
Output Voltage
15 : 1.5V
16 : 1.6V
:
34 : 3.4V
35 : 3.5V
1H : 1.85V
2H : 2.85V
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.
Features
z Short Circuit Thermal Folded Back Protection
z Ultra-Low-Noise for RF Application
z Ultra-Fast Response in Line/Load Transient
z Quick Start-Up (Typically 50μs)
z 0.01μA Standby Current When Shutdown
z Low Dropout : 380mV @ 500mA
z Wide Operating Voltage Ranges : 2.5V to 5.5V
z TTL-Logic-Controlled Shutdown Input
z Low Temperature Coefficient
z Current Limiting Protection
z Thermal Shutdown Protection
z Only 1μF Output Capacitor Required for Stability
z High Power Supply Rejection Ratio
z Custom Voltage Available
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
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.
Pin Configurations
(TOP VIEW)
VIN 1
5 VOUT
GND 2
EN 3
4 BP
SOT-23-5
EN 1
GND 2
VIN 3
6 BP
5 NC
7 _{4 VOUT}
WDFN-6L 2x2
DS9016-03 August 2007
www.richtek.com
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