RT9022 Datasheet, PDF (1/11 Pages) Richtek Technology Corporation – High Voltage, Low Quiescent, 60mA LDO Regulator

Preliminary
RT9022
High Voltage, Low Quiescent, 60mA LDO Regulator
General Description
The RT9022 is designed for positive CCD bias applications
with critical performance and space requirements. The
RT9022 performance is optimized for battery-powered
systems to deliver low noise and low quiescent current
and with soft start function.
The RT9022 also works well with low-ESR ceramic
capacitors, reducing the amount of board space necessary
for power applications and consumes less than 1μA in
shutdown mode.
The other features include ultra low dropout voltage, high
output accuracy, and current limiting protection. The part
is available in the SOT-23-6, TSOT-23-6 and SC-70-6
packages.
Ordering Information
RT9022
Package Type
E : SOT-23-6
J6 : TSOT-23-6
U6 : SC-70-6
Operating Temperature Range
P : Pb Free with Commercial Standard
G : Green (Halogen Free with Commer-
cial Standard)
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.
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
z Low Quiescent Current (Typically 40μA)
z Wide Operating Voltage Ranges : 5V to 20V
z Ultra-Fast Transient Response
z Tight Load and Line Regulation
z Current Limiting Protection
z Thermal Shutdown Protection
z Adjustable Soft Start Time
z RoHS Compliant and 100% Lead (Pb)-Free
Applications
z DSC
z Camcorder
Pin Configurations
(TOP VIEW)
EN SS FB
6
5
4
1
2
3
VIN GND VOUT
SOT-23-6 / TSOT-23-6 / SC-70-6
Note : There is no pin1 indicator on top mark for SOT-23-6
and SC-70-6 type, and pin 1 will be lower left pin when reading
top mark from left to right.
Typical Application Circuit
V_IN
1 _{VIN VOUT} 3
1uF
RT9022
1nF
R1
ON ⁶ _EN
FB ⁴
OFF
R2
5 _SS
GND ²
V_OUT
2.2uF
VOUT
=
V FB
(1+
R1
R2
)V
DS9022-00 September 2007
www.richtek.com
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