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參數資料
| 型號： | ML9266PRG |
| 廠商： | Electronic Theatre Controls, Inc. |
| 英文描述： | Step-up DC/DC converter |
| 中文描述： | 升壓型DC / DC轉換器 |
| 文件頁數： | 1/5頁 |
| 文件大小： | 112K |
| 代理商： | ML9266PRG |
■
General Description
■
Features
◆
90% Efficiency
◆
High Supply Capability to Deliver 3.3V 100mA
with 1 Alkaline cell
◆
17
μ
A Quiescent (switch-off) Supply Current
◆
450KHz Fixed Switching Frequency
◆
Zero Shutdown Mode Supply Current
◆
Providing Flexibility for Using Internal and
External Power Switches
◆
1.0V Low Start-up Input Voltage
◆
Small SOT-26 & SOT89-5 Package
iency maintains long battery lifetime.
The ML9266 is available in small package SOT-26 and
■
Ordering Information
Item
Package
Shipping
SOT89-5
ML9266MRG
SOT-26
3000pcs/Reel&Tape
ML9266PRG
SOT-89-5
1000pcs/Reel&Tape
■
Applications
■
Package Information
◆
LCD Panel
◆
DSC
◆
MP3
◆
Wireless Equipment
◆
Portable Instrument
◆
PDA
■
Typical Application Circuit
SOT89-5
SOT-23-6
■
Pin Configurations
SOT-26
SOT-89-5Pin NamePin Function
1
1
CE
Chip enable
2
EXT
Output
3
5
GND
Ground
4
4
LX
Switching
5
2
VDD
Input
6
3
FB
Feedback input 1.25V
Step-up DC/DC converter
generator, comparator, switch pass element and driver
in which providing a stable and high efficient operation
The low start-up input voltage below 1V makes ML9266
the 17
μ
A low quiescent current together with high effic-
The ML9266 is a small, high efficiency, and low voltage
step-up DC/DC converter with an Adaptive Current Mode
PWM control loop, includes an error amplifier, ramp
rate minimized the size of external components. Besides,
over a wide range of load currents. It operates in stable
waveforms
without
external
compensation.
suitable for 1 to 4 battery cells applications of providing
ML9266
up to 300mA output current. The 450KHz high switching
Vin
3.3~10uH
L1
CE
EXT
VDD
ML9266
GND
FB
LX
C3
100uF
C1
100uF
+
R1
1.6M/3M
1N5819
Vout
3.3V/5V
+
D1
R2
980k/1M
1uF
C2
P1 / 5
Rev. C, Sep 2005
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