Product Summary

The LT3991EDD-3.3#PBF is a step-down regulator. Its applications include automotive battery regulation, power for portable products, industrial supplies.

Parametrics

LT3991EDD-3.3#PBF absolute maximum ratings: (1)VIN, EN voltage: 55V; (2)BOOST pin voltage: 75V; (3)Boost diode current: 1A; (4)Operating junction temperature; -40 to 125℃; (5)Storage temperature range: -65 to 150℃; (6)Lead temperature: 300℃.

Features

LT3991EDD-3.3#PBF features: (1)Ultralow quiescent current: 2.8μA IQ regulating 12VIN to 3.3VOUT; (2)Fixed output voltages: 3.3V; (3)Low ripple burst mode operation: output ripple<15mVP-P; (4)Wide input voltage range: 4.3 to 55V; (5)Adjustable switching frequency: 200kHz to 2MHz.

Diagrams

LT3991EDD-3.3#PBF pin configuration

LT3956EUHE#PBF
LT3956EUHE#PBF


IC LED DVR BUCK BOOST 36-VQFN

Data Sheet

0-1: $4.49
1-25: $3.00
25-100: $2.55
LT3956EUHE#TRPBF
LT3956EUHE#TRPBF


IC LED DVR BUCK BOOST 36-VQFN

Data Sheet

0-2500: $2.58
LT3956IUHE#PBF
LT3956IUHE#PBF


IC LED DVR BUCK BOOST 36-VQFN

Data Sheet

0-305: $3.00
LT3956IUHE#TRPBF
LT3956IUHE#TRPBF


IC LED DVR BUCK BOOST 36-VQFN

Data Sheet

0-2500: $3.03
LT3957AEUHE#PBF
LT3957AEUHE#PBF


IC REG MULTI CONFIG ADJ 5A 36QFN

Data Sheet

0-1: $3.77
1-25: $2.53
25-100: $2.15
LT3957AEUHE#TRPBF
LT3957AEUHE#TRPBF


IC REG MULTI CONFIG ADJ 5A 36QFN

Data Sheet

0-2500: $2.22