Zenode.ai Logo
Log InSign Up
24-LQFN
Integrated Circuits (ICs)

LT8643SHV-2#TRPBF

Active
Analog Devices Inc./Maxim Integrated

SWITCHING VOLTAGE REGULATORS 42V, 6A SYNCHRONOUS STEP-DOWN SILENT SWITCHER WITH 2.5 A QUIESCENT CURRENT WITH EXTERNAL COMPENSATION

Deep-Dive with AI

Search across all available documentation for this part.

DocumentsLT8640S-2/LT8643S-2: 42V, 6A Synchronous Step-Down Silent Switcher with 2.5μA Quiescent Current Data Sheet (Rev.D)
24-LQFN
Integrated Circuits (ICs)

LT8643SHV-2#TRPBF

Active
Analog Devices Inc./Maxim Integrated

SWITCHING VOLTAGE REGULATORS 42V, 6A SYNCHRONOUS STEP-DOWN SILENT SWITCHER WITH 2.5 A QUIESCENT CURRENT WITH EXTERNAL COMPENSATION

Deep-Dive with AI

DocumentsLT8640S-2/LT8643S-2: 42V, 6A Synchronous Step-Down Silent Switcher with 2.5μA Quiescent Current Data Sheet (Rev.D)

Technical Specifications

Parameters and characteristics for this part

SpecificationLT8643SHV-2#TRPBF
Current - Output6 A
Frequency - Switching [Max]3 MHz
Frequency - Switching [Min]200 kHz
FunctionStep-Down
GradeAutomotive
Mounting TypeSurface Mount
Number of Outputs1
Operating Temperature [Max]150 °C
Operating Temperature [Min]-40 °C
Output ConfigurationPositive
Output TypeAdjustable
Package / Case24-TFQFN Exposed Pad
QualificationAEC-Q100
Supplier Device Package24-LQFN
Supplier Device Package [x]4
Supplier Device Package [y]4
Synchronous RectifierTrue
TopologyBuck
Voltage - Input (Max) [Max]42 V
Voltage - Input (Min) [Min]3 V
Voltage - Output (Max) [Max]42 V
Voltage - Output (Min/Fixed) [Min]0.97 V

LT8643S-2 Series

42V, 6A Synchronous Step-Down Silent Switcher with 2.5µA Quiescent Current with External Compensation

PartVoltage - Input (Min) [Min]FunctionNumber of OutputsFrequency - Switching [Max]Frequency - Switching [Min]Current - OutputMounting TypePackage / CaseTopologySynchronous RectifierVoltage - Output (Min/Fixed) [Min]Output ConfigurationOperating Temperature [Max]Operating Temperature [Min]Supplier Device Package [x]Supplier Device Package [y]Supplier Device PackageVoltage - Input (Max) [Max]Output TypeVoltage - Output (Max) [Max]QualificationGrade
LT8643SIV-2#PBF
Analog Devices Inc./Maxim Integrated
LT8643SIV-2#PBF
3.4 V
Step-Down
1
2.1 MHz
180 kHz
6 A
Surface Mount
24-TFQFN Exposed Pad
Buck
0.97 V
Positive
125 °C
-40 C
4
4
24-LQFN
42 V
Adjustable
42 V
24-LQFN
Analog Devices Inc./Maxim Integrated
LT8643SEV-2#TRPBF
3 V
Step-Down
1
3 MHz
200 kHz
6 A
Surface Mount
24-TFQFN Exposed Pad
Buck
0.97 V
Positive
125 °C
-40 C
4
4
24-LQFN
42 V
Adjustable
42 V
AEC-Q100
Automotive
24-LQFN
Analog Devices Inc./Maxim Integrated
LT8643SIV-2#TRPBF
3 V
Step-Down
1
3 MHz
200 kHz
6 A
Surface Mount
24-TFQFN Exposed Pad
Buck
0.97 V
Positive
125 °C
-40 C
4
4
24-LQFN
42 V
Adjustable
42 V
AEC-Q100
Automotive
24-LQFN
Analog Devices Inc./Maxim Integrated
LT8643SHV-2#TRPBF
3 V
Step-Down
1
3 MHz
200 kHz
6 A
Surface Mount
24-TFQFN Exposed Pad
Buck
0.97 V
Positive
150 °C
-40 °C
4
4
24-LQFN
42 V
Adjustable
42 V
AEC-Q100
Automotive
Analog Devices-LT8643SIV#PBF DC to DC Converter and Switching Regulator Chip Conv DC-DC 3.4V to 42V Synchronous Step Down Single-Out 0.97V to 41.58V 6A 24-Pin LQFN EP Tray
Analog Devices Inc./Maxim Integrated
LT8643SEV-2#PBF
3.4 V
Step-Down
1
2.1 MHz
180 kHz
6 A
Surface Mount
24-TFQFN Exposed Pad
Buck
0.97 V
Positive
125 °C
-40 C
4
4
24-LQFN
42 V
Adjustable
42 V
24-LQFN
Analog Devices Inc./Maxim Integrated
LT8643SHV-2#PBF
3.4 V
Step-Down
1
2.1 MHz
180 kHz
6 A
Surface Mount
24-TFQFN Exposed Pad
Buck
0.97 V
Positive
150 °C
-40 C
4
4
24-LQFN
42 V
Adjustable
42 V

Pricing

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

DistributorPackageQuantity$Updated
DigikeyN/A 0$ 7.901m+
Tape & Reel (TR) 2500$ 7.901m+
MouserN/A 2500$ 7.901m+

Description

General part information

LT8643S-2 Series

The LT8640S-2/LT8643S-2 synchronous step-down regulator features Silent Switcher architecture designed to minimize EMI emissions while delivering high efficiency at high switching frequencies. Peak current mode control with a 30ns minimum on-time allows high step-down ratios even at high switching frequencies. The LT8643S-2 has external compensation to enable current sharing and fast transient response at high switching frequencies.Burst Mode operation enables ultralow standby current consumption, forced continuous mode can control frequency harmonics across the entire output load range, or spread spectrum operation can further reduce EMI emissions.APPLICATIONSAutomotive and Industrial SuppliesGeneral Purpose Step-Down