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RT9017-34GB Datasheet(PDF) 1 Page - Richtek Technology Corporation

Part # RT9017-34GB
Description  500mA Peak, Thermal Folded Back CMOS LDO Regulator
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Manufacturer  RICHTEK [Richtek Technology Corporation]
Direct Link  http://www.richtek.com
Logo RICHTEK - Richtek Technology Corporation

RT9017-34GB Datasheet(HTML) 1 Page - Richtek Technology Corporation

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RT9017
Preliminary
1
DS9017-03 August 2007
www.richtek.com
500mA Peak, Thermal Folded Back CMOS LDO Regulator
General Description
The RT9017 is designed for portable RF and wireless
applications with demanding performance and space
requirements. The RT9017 performance is optimized for
battery-powered systems to deliver ultra low noise and
low quiescent current. Regulator ground current increases
only slightly in dropout, further prolonging the battery life.
The RT9017 also works with low-ESR ceramic capacitors,
reducing the amount of board space necessary for power
applications, critical in hand-held wireless devices. The
RT9017 consumes less than 0.01
μA in shutdown mode
and has fast turn-on time less than 50
μs. RT9017 is short
circuit thermal folded back protected. RT9017 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 other features include ultra low dropout
voltage, high output accuracy, current limiting protection,
and high ripple rejection ratio. Available in the SOT-23-3,
SOT-23-5 and WDFN-6L 2x2 packages, the RT9017 also
offers a range of 1.5V to 3.5V with 0.1V per step.
Applications
CDMA/GSM Cellular Handsets
Battery-Powered Equipment
Laptop, Palmtops, Notebook Computers
Hand-Held Instruments
PCMCIA Cards
Portable Information Appliances
Ordering Information
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.
Features
Short Circuit Thermal Folded Back Protection
Low-Noise for RF Application
Fast Response in Line/Load Transient
Quick Start-Up (Typically 50
μμμμμs)
0.01
μμμμμA Standby Current When Shutdown
Low Dropout : 380mV @ 500mA
Wide Operating Voltage Ranges : 2.5V to 5.5V
TTL-Logic-Controlled Shutdown Input
Low Temperature Coefficient
Current Limiting Protection
Thermal Shutdown Protection
Only 1
μμμμμF Output Capacitor Required for Stability
High Power Supply Rejection Ratio
Custom Voltage Available
RoHS Compliant and 100% Lead (Pb)-Free
Pin Configurations
(TOP VIEW)
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.
SOT-23-3
1
2
3
GND
VOUT
VIN
RT9017-
Package Type
V : SOT-23-3
B : SOT- 23-5
BR : SOT- 23-5 (R-Type)
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
EN
GND
NC
NC
VOUT
VIN
5
4
1
2
3
6
7
WDFN-6L 2x2


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