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LT8640SEV#PBF ADI Chips 42V 6A Synchronous Step Down Silent Switcher 2 2.5µA Quiescent Current

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LT8640SEV#PBF ADI Chips 42V 6A Synchronous Step Down Silent Switcher 2 2.5µA Quiescent Current

Brand Name:	ADI
Model Number:	LT8640SEV#PBF
MOQ:	500PCS
Packaging Details:	500PCS/reel
Payment Terms:	T/T

Detail Information

Product Description

Detail Information

Place of Origin:

China

Document:

Model:

LT8640SEV#PBF

Type:

SMD/SMT

Power Supply Voltage:

3.4 V-42 V

Operating Temperature:

- 40 °C~+ 125 °C

Switching Frequency:

200 KHz To 3 MHz

Quiescent Current:

2.5 UA

Number Of Output Terminals:

1 Output

Supply Ability:

10000

Highlight:

LT8640SEV#PBF Silent Switcher

ADI Chips Synchronous Step Down Switcher

42V Silent Switcher

Product Description

ADI chips LT8640SEV#PBF 42V, 6A Synchronous Step-Down Silent Switcher 2 with 2.5µA Quiescent Current

42V, 6A Synchronous Step-Down Silent Switcher 2 with 2.5µA Quiescent Current

FEATURES

Silent Switcher ®2 Architecture

Ultralow EMI Emissions on Any PCB

Eliminates PCB Layout Sensitivity

Internal Bypass Capacitors Reduce Radiated EMI

Optional Spread Spectrum Modulation

High Efficiency at High Frequency

Up to 96% Efficiency at 1MHz, 12VIN to 5VOUT

Up to 95% Efficiency at 2MHz, 12VIN to 5VOUT

Wide Input Voltage Range: 3.4V to 42V

6A Maximum Continuous, 7A Peak Output

Ultralow Quiescent Current Burst Mode® Operation

2.5µA IQ Regulating 12VIN to 3.3VOUT (LT8640S)

Output Ripple < 10mVP-P

External Compensation: Fast Transient Response

and Current Sharing (LT8643S)

Fast Minimum Switch On-Time: 30ns

Low Dropout Under All Conditions: 100mV at 1A

Forced Continuous Mode

Adjustable and Synchronizable: 200kHz to 3MHz

Output Soft-Start and Tracking

Small 24-Lead 4mm × 4mm LQFN Package

AEC-Q100 Qualified for Automotive Applications

APPLICATIONS

Automotive and Industrial Supplies

General Purpose Step-Down

DESCRIPTION

The LT®8640S/LT8643S synchronous step-down regulator

features second generation Silent Switcher architecture

designed to minimize EMI emissions while delivering high

efficiency at high switching frequencies. This includes

the integration of bypass capacitors to optimize all the

fast current loops inside and make it easy to achieve

advertised EMI performance by reducing layout sensitivity.

This performance makes the LT8640S/LT8643S ideal for

noise-sensitive applications and environments.

Peak current mode control with a 30ns minimum on-time

allows high step-down ratios even at high switching

frequencies. The LT8643S 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.

TYPICAL APPLICATION

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products details

LT8640SEV#PBF ADI Chips 42V 6A Synchronous Step Down Silent Switcher 2 2.5µA Quiescent Current

OSRAM LED Chip

CREE LED Chip

ST IC Chips

TI Chips

Bridgelux LED Chip

Infineon Chip

LUMINUS LED Chip

LED Lamp Beads

SAMSUNG IC Chips

Micron Chips

SK Hynix Chips

Lumileds LED Chip

SAMSUNG LED Chip

SEOUL LED Chip

NICHIA LED Chip

NeXperia Chips

ONsemi Chips

ADI Chips

TSLC Semileds LED Lamp Beads

High Power LED Chip

OSRAM LED Chip

CREE LED Chip

ST IC Chips

TI Chips

Bridgelux LED Chip

Infineon Chip

LUMINUS LED Chip

LED Lamp Beads

SAMSUNG IC Chips

Micron Chips

SK Hynix Chips

Lumileds LED Chip

SAMSUNG LED Chip

SEOUL LED Chip

NICHIA LED Chip

NeXperia Chips

ONsemi Chips

ADI Chips