ml9266 Minilogic Device Corporation Limited., ml9266 Datasheet

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ml9266

Manufacturer Part Number
ml9266
Description
Step-up Dc/dc Converter
Manufacturer
Minilogic Device Corporation Limited.
Datasheet

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Company
Part Number
Manufacturer
Quantity
Price
Part Number:
ml9266MR
Manufacturer:
MDC
Quantity:
20 000
■ General Description
■ Applications
◆ LCD Panel
◆ DSC
◆ MP3
◆ Wireless Equipment
◆ Portable Instrument
◆ PDA
■ Typical Application Circuit
The ML9266 is a small, high efficiency, and low voltage
step-up DC/DC converter with an Adaptive Current Mode
generator, comparator, switch pass element and driver
in which providing a stable and high efficient operation
over a wide range of load currents. It operates in stable
waveforms without external compensation.
The low start-up input voltage below 1V makes ML9266
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 µ A low quiescent current together with high effic-
iency maintains long battery lifetime.
The ML9266 is available in small package SOT-26 and
SOT89-5
Step-up DC/DC converter
Vin
PWM control loop, includes an error amplifier, ramp
CE
EXT
+
C3
100uF
ML9266
VDD
GND
3.3~10uH
FB
LX
C2
1uF
L1
1N5819
R1
1.6M/3M
R2
980k/1M
D1
+
C1
100uF
Vout
3.3V/5V
P1 / 5
■ Features
■ Ordering Information
■ Package Information
■ Pin Configurations
◆ 90% Efficiency
◆ High Supply Capability to Deliver 3.3V 100mA
◆ 17µA Quiescent (switch-off) Supply Current
◆ 450KHz Fixed Switching Frequency
◆ Zero Shutdown Mode Supply Current
◆ Providing Flexibility for Using Internal and
◆ 1.0V Low Start-up Input Voltage
◆ Small SOT-26 & SOT89-5 Package
Item
ML9266MRG
ML9266PRG
SOT-26
with 1 Alkaline cell
External Power Switches
1
2
3
4
5
6
SOT89-5
SOT-89-5 Pin NamePin Function
1
5
4
2
3
Package
SOT-26
SOT-89-5
GND
VDD
EXT
CE
FB
LX
Chip enable
Output
Ground
Switching
Input
Feedback input 1.25V
SOT-23-6
Shipping
3000pcs/Reel&Tape
1000pcs/Reel&Tape
ML9266
Rev. D, May 2008

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