LT1946EMS8#TRPBF

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Analog Devices Inc./Maxim Integrated

1.2MHZ BOOST DC/DC CONVERTER WITH 1.5A SWITCH AND SOFT-START

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LT1946EMS8#TRPBF

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Analog Devices Inc./Maxim Integrated

1.2MHZ 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

LT1946 Series

The LT1946 is a fixed frequency step-up DC/DC converter containing an internal 1.5A, 36V switch. Capable of generating 8V at 430mA from a 3.3V input, the LT1946 is ideal for large TFT-LCD panel power supplies. The LT1946 switches at 1.2MHz, 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 1.2mm high.Switching FrequencyLT19461.2MHzLT1946A2.7MHzApplicationsTFT-LCD Bias SuppliesGPS ReceiversDSL ModemsLocal Power Supplies

Technical Specifications

Parameters and characteristics for this part

Specification	LT1946EMS8#TRPBF

Current - Output	1.5 A
Frequency - Switching	1.2 MHz
Function	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 Length	0.118 in
Package Name	8-TSSOP, 8-MSOP, 8-MSOP
Package Width	3 mm
Synchronous Rectifier	No
Topology	Boost
Voltage - Input (Max)	16 V
Voltage - Input (Min)	2.45 V
Voltage - Output (Max)	34 V
Voltage - Output (Min/Fixed)	2.45 V

LT1946 Series

Part	Voltage - Input (Max)	Voltage - Input (Min)	Function	Output Configuration	Package Name	Voltage - Output (Max)	Mounting Type	Voltage - Output (Min/Fixed)	Frequency - Switching	Topology	Current - Output	Synchronous Rectifier	Output Type	Operating Temperature (Max)	Number of Outputs	Package Length	Package Features	Package Width
Analog Devices Inc./Maxim Integrated LT1946EMS8E#TRPBF	16 V	2.45 V	Step-Up	Positive	8-MSOP 8-MSOP-EP 8-TSSOP	34 V	Surface Mount	2.45 V	1.2 MHz	Boost	1.5 A	No	Adjustable	70 °C	1	0.118 in	Exposed Pad	3 mm
Analog Devices Inc./Maxim Integrated LT1946EMS8#TRPBF	16 V	2.45 V	Step-Up	Positive	8-MSOP 8-TSSOP 8-MSOP	34 V	Surface Mount	2.45 V	1.2 MHz	Boost	1.5 A	No	Adjustable	70 °C	1	0.118 in		3 mm
Analog Devices Inc./Maxim Integrated LT1946EMS8#PBF	16 V	2.45 V	Step-Up	Positive	8-MSOP 8-TSSOP 8-MSOP	34 V	Surface Mount	2.45 V	1.2 MHz	Boost	1.5 A	No	Adjustable	70 °C	1	0.118 in		3 mm
Analog Devices Inc./Maxim Integrated LT1946EMS8E#PBF	16 V	2.45 V	Step-Up	Positive	8-MSOP 8-MSOP-EP 8-TSSOP	34 V	Surface Mount	2.45 V	1.2 MHz	Boost	1.5 A	No	Adjustable	70 °C	1	0.118 in	Exposed Pad	3 mm

Pricing

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CAD

3D models and CAD resources for this part

Documents

Technical documentation and resources

R365 Reliability Data

LT1946EMS8#TRPBF | Datasheet