LM2700Q Datasheet, PDF (1/19 Pages) Texas Instruments – 600kHz/1.25MHz, 2.5A, Step-up PWM DC/DC Converter

LM2700Q
March 1, 2012
600kHz/1.25MHz, 2.5A, Step-up PWM DC/DC Converter
General Description
The LM2700Q is a step-up DC/DC converter with a 3.6A,
80mΩ internal switch and pin selectable operating frequency.
With the ability to produce 500mA at 8V from a single Lithium
Ion battery, the LM2700Q is an ideal part for biasing LCD dis-
plays. The LM2700Q can be operated at switching frequen-
cies of 600kHz and 1.25MHz allowing for easy filtering and
low noise. An external compensation pin gives the user flex-
ibility in setting frequency compensation, which makes pos-
sible the use of small, low ESR ceramic capacitors at the
output. The LM2700Q features continuous switching at light
loads and operates with a switching quiescent current of
2.0mA at 600kHz and 3.0mA at 1.25MHz. The LM2700Q is
available in a low profile 14-lead TSSOP package or a 14-lead
LLP package.
Features
■ ^{AEC-Q100 Grade 2 qualified (-40°c to +105°c)}
■ ^{3.6A, 0.08Ω, internal switch}
■ ^{Operating input voltage range of 2.2V to 12V}
■ ^{Input undervoltage protection}
■ ^{Adjustable output voltage up to 17.5V}
■ ^{600kHz/1.25MHz pin selectable frequency operation}
■ ^{Over temperature protection}
■ ^{Small 14-Lead TSSOP or LLP package}
Applications
■ ^{LCD Bias Supplies}
■ ^{Handheld Devices}
■ ^{Portable Applications}
■ ^{GSM/CDMA Phones}
■ ^{Digital Cameras}
Typical Application Circuit
Connection Diagram
600 kHz Operation
30186101
Top View
30186104
14-Lead TSSOP
© 2012 Texas Instruments Incorporated 301861 SNVS794
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