Product Summary

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.



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Features

1.5A, 36V Internal Switch
1.2MHz Switching Frequency
Integrated Soft-Start Function
Output Voltage Up to 34V
Low VCESAT Switch: 300mV at 1.5A (Typ)
8V at 430mA from a 3.3V Input
Small 8-Lead MSOP Package

Image Part No Mfg Description Data Sheet Download Pricing
(USD)
Quantity
LT1946AEMS8E#PBF
LT1946AEMS8E#PBF


IC REG BOOST ADJ 1.5A 8MSOP

Data Sheet

0-1: $2.11
1-25: $1.40
25-100: $1.12
Image Part No Mfg Description Data Sheet Download Pricing
(USD)
Quantity
LT1904
LT1904

Other


Data Sheet

Negotiable 
LT1910ES8
LT1910ES8


IC MOSFET DRIVER HIGH-SIDE 8SOIC

Data Sheet

0-3100: $1.46
LT1910ES8#PBF
LT1910ES8#PBF


IC MOSFET DRIVER HIGH-SIDE 8SOIC

Data Sheet

0-1: $2.49
1-25: $1.77
25-100: $1.46
LT1910ES8#TR
LT1910ES8#TR


IC DRIVER MOSFET HI SIDE 8SOIC

Data Sheet

0-5000: $1.49
LT1910ES8#TRPBF
LT1910ES8#TRPBF


IC MOSFET DRIVER HIGH-SIDE 8SOIC

Data Sheet

0-2500: $1.49
LT1910IS8#PBF
LT1910IS8#PBF


IC MOSFET DRIVER HI-SIDE 8-SOIC

Data Sheet

0-1: $2.71
1-25: $1.82
25-100: $1.54