RT9266 반도체 회로 부품 판매점
Step-up DC/DC Converter
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 Richtek |
®
RT9266
Tiny Package, High Efficiency, Step-up DC/DC Converter
General D escription
The RT9266 is a compact, high eficiency, and low voltage
step-up DC/DC converter with an Adaptive Current Mode
PWM control loop, include s a n error a mplifier, ra mp
generator, comparator, switch pass element and driver in
which providing a stable and high eficient operation over
a wide ra nge of loa d currents. It operate s in sta ble
waveforms without external compensation.
The low start-up input voltage below 1V makes RT9266
suitable for 1 to 4 battery cells applications of providing
up to 300mA output current. The 450kHz high switching
rate minimized the size of external components. Besides,
the 17 μA low quiescent current together with high
efficiency maintains long battery lifetime.
The output voltage is set with two external resistors. Both
internal 2A switch and driver for driving external power
devices (NMOS orNPN) are provided.
Ordering Inf ormation
RT9266
Package Type
E : SOT-23-6
X5 : SOT-89-5
Lead Plating System
P : Pb Free
G : Green (Halogen Free and Pb Free)
Note :
Richtek products are :
` RoHS compli ant and compatible with the current require-
ments of IPC/JEDEC J-ST D-020.
` Suitable for use in SnPb or Pb-free soldering processes.
Marking Information
Features
z 1.0V Low Start-up Input Voltage
z High Supply Capability to Deliver 3.3V 100mA with
1 Alkaline Cell
z 17μA Quiescent (Switch-off) Supply Current
z Zero Shutdown Mode Supply Current
z 90% Efficiency
z 450kHz Fixed Switching Frequency
z Providing Flexibility for Using Internal and External
Power Switches
z Small SOT-23-6 & SOT-89-5 Package
z RoHS Compliant and 100% Lead (Pb)-Free
Application s
z PDA
z DSC
z LCD Panel
z RF-Tags
z MP3
z Portable Instrument
z Wireless Equipment
Pin Configurations
(TOP VIEW)
FB VDD LX
654
23
EN EXT GND
SOT-23-6
GND
LX
54
1 23
EN VDD FB
SOT-89-5
For marking information, contact our sales representative
directly or through a Richtek distributor located in your
area.
Copyright ©2013 Richtek Technology Corporation. All rights reserved.
DS9266-16 June 2013
is a registered trademark of Richtek Technology Corporation.
www.richtek.com
1
http://www.Datasheet4U.com
RT9266
Typical Application Circuit
L1 D1
VIN
C3
100µF
3.3 to 10 µH
1N5819
VOUT
C2 3.3V/5V
1µF
VDD
EN RT9266 LX
R1
1.6M/3M
EXT GND FB
R2
980k/1M
C1
100µF
Figure 1. RT9266 Typical Application for Portable Instruments
3.1V to 5V for 12V
2.8V to 5V for 9V
VIN
C4
100µF
L1
4.7µH
RVDD
100
D1
1N5819
VDD EXT
EN RT9266 LX
GND FB
CVDD
1µF
Q1
N MOS
C3
0.1µF
R1
860k/620k
RM
0.22
R2
100k
C2
1µF
Figure 2. RT9266 High Voltage Applications
12V/9V
300mA
C1
100uF
Copyright ©2013 Richtek Technology Corporation. All rights reserved.
www.richtek.com
2
is a registered trademark of Richtek Technology Corporation.
DS9266-16 June 2013
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제조업체: Richtek
( richtek )
RT9266 converter
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[ RT9266.PDF ]
[ RT9266 다른 제조사 검색 ]
국내 전력반도체 판매점
상호 : 아이지 인터내셔날
전화번호 : 051-319-2877
[ 홈페이지 ]
IGBT, TR 모듈, SCR, 다이오드모듈, 각종 전력 휴즈
( IYXS, Powerex, Toshiba, Fuji, Bussmann, Eaton )
전력반도체 문의 : 010-3582-2743
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