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General Description
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
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碌A(chǔ) low quiescent current together with high effic-
iency maintains long battery lifetime.
The ML9266 is available in small package SOT-26 and
SOT89-5
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Features
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90% Efficiency
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High Supply Capability to Deliver 3.3V 100mA
with 1 Alkaline cell
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17碌A(chǔ) Quiescent (switch-off) Supply Current
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450KHz Fixed Switching Frequency
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Zero Shutdown Mode Supply Current
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Providing Flexibility for Using Internal and
External Power Switches
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1.0V Low Start-up Input Voltage
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Small SOT-26 & SOT89-5 Package
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Ordering Information
Item
ML9266MRG
ML9266PRG
Package
SOT-26
SOT-89-5
Shipping
3000pcs/Reel&Tape
1000pcs/Reel&Tape
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Applications
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Package Information
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LCD Panel
DSC
MP3
Wireless Equipment
Portable Instrument
PDA
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Typical Application Circuit
L1
Vin
+
C3
100uF
C2
1uF
VDD
CE
EXT
ML9266
GND
LX
FB
R2
980k/1M
3.3~10uH
1N5819
D1
SOT89-5
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Pin Configurations
SOT-26
1
2
3
4
5
6
SOT-23-6
R1
1.6M/3M
+
Vout
3.3V/5V
C1
100uF
SOT-89-5 Pin NamePin Function
1
CE
Chip enable
EXT Output
5
GND Ground
4
LX
Switching
2
VDD Input
3
FB
Feedback input 1.25V
P1 / 5
Rev. C, Sep 2005
ML9266PRG相關(guān)型號PDF文件下載
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