LT1946AEMS8E#PBF

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Analog Devices Inc./Maxim Integrated

2.7MHZ BOOST DC/DC CONVERTER WITH 1.5A SWITCH AND SOFT-START

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LT1946AEMS8E#PBF

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Analog Devices Inc./Maxim Integrated

2.7MHZ BOOST DC/DC CONVERTER WITH 1.5A SWITCH AND SOFT-START

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Description Specifications Series Pricing CAD Documents

Description

General part information

LT1946A Series

The LT1946A is a fixed frequency step-up DC/DC converter containing an internal 1.5A, 36V switch. Capable of generating 12V at 430mA from a 5V input, the LT1946A is ideal for powering large TFT-LCD panels. The LT1946A switches at 2.7MHz, allowing the use of tiny, low profile inductors and low value ceramic capacitors. Loop compensation can be either internal or external, giving the user flexibility in setting loop compensation and allowing optimized transient response with low ESR ceramic output capacitors. Soft-start is controlled with an external capacitor which determines the input current ramp rate during start up. The 8-lead MSOP package and high switching frequency ensure a low profile overall solution less than 1.1mm high.Switching FrequencyLT19461.2MHzLT1946A2.7MHzApplicationsTFT-LCD Bias SuppliesGPS ReceiversDSL ModemsLocal Power Supply

Technical Specifications

Parameters and characteristics for this part

Specification	LT1946AEMS8E#PBF

Current - Output	1.5 A
Frequency - Switching	2.7 MHz
Function	Step-Up, Step-Up/Step-Down
Mounting Type	Surface Mount
Number of Outputs	1
Operating Temperature (Max)	70 °C
Operating Temperature (Min)	0 °C
Output Configuration	Positive
Output Type	Adjustable
Package Features	Exposed Pad
Package Length	0.118 in
Package Name	8-MSOP, 8-TSSOP, 8-MSOP-EP
Package Width	3 mm
Synchronous Rectifier	No
Topology	SEPIC, Boost
Voltage - Input (Max)	16 V
Voltage - Input (Min)	2.45 V
Voltage - Output (Max)	35 VDC
Voltage - Output (Min/Fixed)	2.45 V

LT1946A Series

2.7MHz Boost DC/DC Converter with 1.5A Switch and Soft-Start

Part	Number of Outputs	Package Length	Package Features	Package Name	Package Width	Operating Temperature (Min)	Operating Temperature (Max)	Output Type	Voltage - Input (Max)	Mounting Type	Voltage - Output (Max)	Function	Voltage - Output (Min/Fixed)	Frequency - Switching	Current - Output	Voltage - Input (Min)	Synchronous Rectifier	Topology	Output Configuration
Analog Devices Inc./Maxim Integrated LT1946AEMS8E#TRPBF	1	0.118 in	Exposed Pad	8-MSOP 8-MSOP-EP 8-TSSOP	3 mm	0 °C	70 °C	Adjustable	16 V	Surface Mount	35 VDC	Step-Up Step-Up/Step-Down	2.45 V	2.7 MHz	1.5 A	2.45 V	No	Boost SEPIC	Positive
Analog Devices Inc./Maxim Integrated LT1946AEMS8E#PBF	1	0.118 in	Exposed Pad	8-MSOP 8-MSOP-EP 8-TSSOP	3 mm	0 °C	70 °C	Adjustable	16 V	Surface Mount	35 VDC	Step-Up Step-Up/Step-Down	2.45 V	2.7 MHz	1.5 A	2.45 V	No	Boost SEPIC	Positive

Pricing

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CAD

3D models and CAD resources for this part

Documents

Technical documentation and resources

R365 Reliability Data

LT1946AEMS8E#PBF | Datasheet