Specification	LT1946AEMS8E#PBF

Current - Output	1.5 A
Frequency - Switching	2.7 MHz
Function	Step-Up/Step-Down, Step-Up
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 / Case	3 mm, 0.118 in
Package / Case	Exposed Pad, 8-MSOP, 8-TSSOP
Supplier Device Package	8-MSOP-EP
Synchronous Rectifier	False
Topology	Boost, SEPIC
Voltage - Input (Max) [Max]	16 V
Voltage - Input (Min) [Min]	2.45 V
Voltage - Output (Max) [Max]	35 V
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 / Case	Package / Case	Operating Temperature [Min]	Operating Temperature [Max]	Output Type	Supplier Device Package	Voltage - Input (Max) [Max]	Mounting Type	Voltage - Output (Max) [Max]	Function	Voltage - Output (Min/Fixed)	Frequency - Switching	Current - Output	Voltage - Input (Min) [Min]	Synchronous Rectifier	Topology	Output Configuration
Analog Devices Inc./Maxim Integrated LT1946AEMS8E#TRPBF	1	0.118 in 3 mm	8-MSOP 8-TSSOP Exposed Pad	0 °C	70 °C	Adjustable	8-MSOP-EP	16 V	Surface Mount	35 V	Step-Up Step-Up/Step-Down	2.45 V	2.7 MHz	1.5 A	2.45 V		Boost SEPIC	Positive
Analog Devices Inc./Maxim Integrated LT1946AEMS8E#PBF	1	0.118 in 3 mm	8-MSOP 8-TSSOP Exposed Pad	0 °C	70 °C	Adjustable	8-MSOP-EP	16 V	Surface Mount	35 V	Step-Up Step-Up/Step-Down	2.45 V	2.7 MHz	1.5 A	2.45 V		Boost SEPIC	Positive

Pricing

Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly

Distributor	Package	Quantity	$	Updated

Digikey	N/A	687	$ 6.70	1m+

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

Documents

Technical documentation and resources

R365 Reliability Data

Reliability Data

LT1946AEMS8E#PBF | Datasheet

Datasheet