原装LM27032-5个LED串联升压驱动IC

LM2703
Micropower Step-up DC/DC Converter with 350mA Peak
Current Limit
General DescriptionLM2703
Micropower Step-up DC/DC Converter with 350mA Peak
Current Limit
General Description
The LM2703 is a micropower step-up DC/DC in a all
5-lead SOT-23 package. A current limited, fixed off-time
control scheme conserves operating current resulting in highLM2703
Micropower Step-up DC/DC Converter with 350mA Peak
Current Limit
General Description
The LM2703 is a micropower step-up DC/DC in a all
5-lead SOT-23 package. A current limited, fixed off-time
control scheme conserves operating current resulting in high
efficiency over a wide range of load conditions. The 21V
switch allows for output voltages as high as 20V. The low
400ns off-time permits the use of tiny, low profile inductors
and capacitors to minimize footprint and cost in
space-conscious portable applications. The LM2703 is ideal
for LCD panels requiring low current and high efficiency as
well as white LED applications for cellular phone
back-lighting. The LM2703 can drive up to 4 white LEDs
from a single Li-Ion battery.
Features
n 350mA, 0.7W, internal switch
n Uses all surface mount components
n Adjustable output voltage up to 20V
n 2.2V to 7V input range
n Input undervoltage lockout
n 0.01μA shutdown current
n all 5-Lead SOT-23 package
Applications
n LCD Bias Supplies
n White LED Back-Lighting
n Handheld Devices
n Dial Cameras
n Portable Applications
efficiency over a wide range of load conditions. The 21V
switch allows for output voltages as high as 20V. The low
400ns off-time permits the use of tiny, low profile inductors
and capacitors to minimize footprint and cost in
space-conscious portable applications. The LM2703 is ideal
for LCD panels requiring low current and high efficiency as
well as white LED applications for cellular phone
back-lighting. The LM2703 can drive up to 4 white LEDs
from a single Li-Ion battery.
Features
n 350mA, 0.7W, internal switch
n Uses all surface mount components
n Adjustable output voltage up to 20V
n 2.2V to 7V input range
n Input undervoltage lockout
n 0.01μA shutdown current
n all 5-Lead SOT-23 package
Applications
n LCD Bias Supplies
n White LED Back-LightingLM2703
Micropower Step-up DC/DC Converter with 350mA Peak
Current Limit
General Description
The LM2703 is a micropower step-up DC/DC in a all
5-lead SOT-23 package. A current limited, fixed off-time
control scheme conserves operating current resulting in high
efficiency over a wide range of load conditions. The 21V
switch allows for output voltages as high as 20V. The low
400ns off-time permits the use of tiny, low profile inductors
and capacitors to minimize footprint and cost in
space-conscious portable applications. The LM2703 is ideal
for LCD panels requiring low current and high efficiency as
well as white LED applications for cellular phone
back-lighting. The LM2703 can drive up to 4 white LEDs
from a single Li-Ion battery.
Features
n 350mA, 0.7W, internal switch
n Uses all surface mount components
n Adjustable output voltage up to 20V
n 2.2V to 7V input range
n Input undervoltage lockout
n 0.01μA shutdown current
n all 5-Lead SOT-23 package
Applications
n LCD Bias Supplies
n White LED Back-Lighting
n Handheld Devices
n Dial Cameras
n Portable Applications
n Handheld Devices
n Dial Cameras
n Portable Applications
The LM2703 is a micropower step-up DC/DC in a all
5-lead SOT-23 package. A current limited, fixed off-time
control scheme conserves operating current resulting in high
efficiency over a wide range of load conditions. The 21V
switch allows for output voltages as high as 20V. The low
400ns off-time permits the use of tiny, low profile inductors
and capacitors to minimize footprint and cost in
space-conscious portable applications. The LM2703 is ideal
for LCD panels requiring low current and high efficiency as
well as white LED applications for cellular phone
back-lighting. The LM2703 can drive up to 4 white LEDs
from a single Li-Ion battery.
Features
n 350mA, 0.7W, internal switch
n Uses all surface mount components
n Adjustable output voltage up to 20V
n 2.2V to 7V input range
n Input undervoltage lockout
n 0.01μA shutdown current
n all 5-Lead SOT-23 package
Applications
n LCD Bias Supplies
n White LED Back-Lighting
n Handheld Devices
n Dial Cameras
n Portable Applications