LT8650SEV#PBF

Active

Analog Devices Inc./Maxim Integrated

DUAL CHANNEL 4A, 42V, SYNCHRONOUS STEP-DOWN SILENT SWITCHER 2 WITH 6.2ΜA QUIESCENT CURRENT

Find alt

Alpha

LT8650SEV#PBF

Active

Analog Devices Inc./Maxim Integrated

DUAL CHANNEL 4A, 42V, SYNCHRONOUS STEP-DOWN SILENT SWITCHER 2 WITH 6.2ΜA QUIESCENT CURRENT

Find alt

Alpha

Description Specifications Series Pricing CAD Documents

Description

General part information

LT8650S Series

The LT8650S is a dual step-down regulator that delivers up to 4A of continuous current from both channels and supports loads up to 6A from each channel. The LT8650S features the second generation Silent Switcher architecture to minimize EMI emissions while delivering high efficiency at high switching frequencies. This includes integration of bypass capacitors to optimize high frequency current loops and make it easy to achieve advertised EMI performance by eliminating layout sensitivity.The fast, clean, low-overshoot switching edges enable high efficiency operation even at high switching frequencies, leading to a small overall solution size. Peak current mode control with a 40ns minimum on-time allows high step down ratios at high switching frequencies.Burst Mode operation features a 6.2μA quiescent current resulting in high efficiency at low output currents, forced continuous mode allows fixed switching frequency operation over the entire output load range, and spread spectrum operation can further reduce EMI emissions. External VC pins allow optimal loop compensation for fast transient response. The VC pins can also be used for current sharing and the CLKOUT pin enables synchronizing two LT8650S chips to generate a 4-phase, 16A supply.ApplicationsGeneral Purpose Step-DownAutomotive and Industrial Supplies

Technical Specifications

Parameters and characteristics for this part

Specification	LT8650SEV#PBF

Current - Output	4 A
Frequency - Switching (Max)	3 MHz
Frequency - Switching (Min)	300 kHz
Function	Step-Down
Mounting Type	Surface Mount
Number of Outputs	2
Operating Temperature (Max)	125 °C
Operating Temperature (Min)	-40 °C
Output Configuration	Positive
Output Type	Adjustable
Package Leads	28 Leads
Package Length	6 mm
Package Name	32-TFQFN Exposed Pad, 32-LQFN
Package Width	4 mm
Synchronous Rectifier	Yes
Topology	Buck
Voltage - Input (Max)	42 V
Voltage - Input (Min)	2.6 V
Voltage - Output (Max)	42 V
Voltage - Output (Min/Fixed)	0.8 V

LT8650S Series

Part	Topology	Operating Temperature (Max)	Operating Temperature (Min)	Output Type	Mounting Type	Output Configuration	Voltage - Input (Max)	Voltage - Input (Min)	Number of Outputs	Current - Output	Frequency - Switching (Max)	Frequency - Switching (Min)	Synchronous Rectifier	Voltage - Output (Min/Fixed)	Package Name	Package Length	Package Width	Package Leads	Function	Voltage - Output (Max)	Grade	Qualification	Current - Output (Min)	Current - Output (Max)
Analog Devices Inc./Maxim Integrated LT8650SIV#PBF	Buck	125 °C	-40 °C	Adjustable	Surface Mount	Positive	42 V	2.6 V	2	4 A	3 MHz	300 kHz	Yes	0.8 V	32-LQFN 32-TFQFN Exposed Pad	6 mm	4 mm	28 Leads	Step-Down	42 V
Analog Devices Inc./Maxim Integrated LT8650SIV#WPBF	Buck	125 °C	-40 °C	Adjustable	Surface Mount	Positive	42 V	2.6 V	2	4 A	3 MHz	300 kHz	Yes	0.8 V	32-LQFN 32-TFQFN Exposed Pad	6 mm	4 mm	28 Leads	Step-Down	42 V	Automotive	AEC-Q100
Analog Devices Inc./Maxim Integrated LT8650SHV-CSL#TRPBF	Buck	150 °C	-40 °C	Adjustable	Surface Mount	Positive	42 V	2.6 V	2		3 MHz	300 kHz	Yes	0.8 V	32-LQFN 32-TFQFN Exposed Pad	6 mm	4 mm	28 Leads	Step-Down	42 V			4 A	4 A
Analog Devices Inc./Maxim Integrated LT8650SEV#PBF	Buck	125 °C	-40 °C	Adjustable	Surface Mount	Positive	42 V	2.6 V	2	4 A	3 MHz	300 kHz	Yes	0.8 V	32-LQFN 32-TFQFN Exposed Pad	6 mm	4 mm	28 Leads	Step-Down	42 V
Analog Devices Inc./Maxim Integrated LT8650SHV-CSL#PBF	Buck	150 °C	-40 °C	Adjustable	Surface Mount	Positive	42 V	2.6 V	2	4 A	3 MHz	300 kHz	Yes	0.8 V	32-LQFN 32-TFQFN Exposed Pad	6 mm	4 mm	28 Leads	Step-Down	42 V
Analog Devices Inc./Maxim Integrated LT8650SIV#TRPBF	Buck	125 °C	-40 °C	Adjustable	Surface Mount	Positive	42 V	2.6 V	2	4 A	3 MHz	300 kHz	Yes	0.8 V	32-LQFN 32-TFQFN Exposed Pad	6 mm	4 mm	28 Leads	Step-Down	42 V	Automotive	AEC-Q100
Analog Devices Inc./Maxim Integrated LT8650SHV#PBF	Buck	150 °C	-40 °C	Adjustable	Surface Mount	Positive	42 V	2.6 V	2	4 A	3 MHz	300 kHz	Yes	0.8 V	32-LQFN 32-TFQFN Exposed Pad	6 mm	4 mm	28 Leads	Step-Down	42 V
Analog Devices Inc./Maxim Integrated LT8650SEV#TRPBF	Buck	125 °C	-40 °C	Adjustable	Surface Mount	Positive	42 V	2.6 V	2	4 A	3 MHz	300 kHz	Yes	0.8 V	32-LQFN 32-TFQFN Exposed Pad	6 mm	4 mm	28 Leads	Step-Down	42 V
Analog Devices Inc./Maxim Integrated LT8650SHV#WPBF	Buck	150 °C	-40 °C	Adjustable	Surface Mount	Positive	42 V	2.6 V	2	4 A	3 MHz	300 kHz	Yes	0.8 V	32-LQFN 32-TFQFN Exposed Pad	6 mm	4 mm	28 Leads	Step-Down	42 V	Automotive	AEC-Q100

Pricing

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

Create a free account to access distributor pricing data.

CAD

3D models and CAD resources for this part

Documents

Technical documentation and resources

LT8650SEV#PBF | Datasheet

LT8650S-CSL: Dual Channel 4 A, Synchronous Step-Down Silent Switcher 2 with 6.2 μA Quiescent Current Data Sheet (Rev.A)

R585 Reliability Data

Package Drawing - 32-Lead LQFN (6mm x 4mm x 0.94mm w/ EP)