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Analog Devices LTC7801EUFD | Demoboard DC2641A

High Input Voltage Synchronous Buck Converter

Overview

TopologyBuck Converter
Input voltage48 V
Switching frequency75-850 kHz
Output 112 V / 10 A
IC revision00

Description

Demonstration circuit 2641A is a single output synchronousbuck converter featuring the LTC7801EUFD in the24-lead QFN package. The input voltage range is from16V to 100V and the output is 12V/10A. The DC2641A isconfigured with a sense resistor for over current protection.Inductor DCR current sensing is optional.

Features

  • Wide VIN Range: 4V to 140V (150V Abs Max)
  • Wide Output Voltage Range: 0.8V to 60V
  • Adjustable Gate Drive Level: 5V to 10V (OPTI-DRIVE)
  • Low Operating IQ: 40μA (Shutdown = 10μA)
  • 100% Duty Cycle Operation
  • No External Bootstrap Diode Required
  • Selectable Gate Drive UVLO Thresholds
  • Onboard LDO or External NMOS LDO for DRVCC
  • EXTVCC LDO Powers Drivers from VOUT
  • Phase-Lockable Frequency (75kHz to 850kHz)
  • Programmable Fixed Frequency (50kHz to 900kHz)
  • Selectable Continuous, Pulse-Skipping or Low RippleBurst Mode® Operation at Light Loads
  • Adjustable Burst Clamp
  • Power Good Output Voltage Monitor
  • Programmable Input Overvoltage Lockout
  • Small 24-Lead 4mm × 5mm QFN or TSSOP Packages

Typical applications

  • High Voltage Battery Operated Systems
  • Automotive and Industrial Power Systems
  • Telecommunications Power Systems

More information

Products

Order Code Data­sheet Simu­lation Downloads Status Product seriesL
(mm)
f
(mm)
L
(µH)
IRP,40K
(A)
ISAT,10%
(A)
ISAT,30%
(A)
RDC max.
(mΩ)
fres
(MHz)
Wire TypePins
(pcs)
RowsH
(mm)
GenderTypeIR
(A)
Packaging Samples
62000211121SPEC
6 files Active i| Production is active. Expected lifetime: >10 years.WR-PHD 2.00 mm THT Pin Header 4 2 Single Pin Header Straight 2 Bag
62000311121SPEC
6 files Active i| Production is active. Expected lifetime: >10 years.WR-PHD 2.00 mm THT Pin Header 6 3 Single Pin Header Straight 2 Bag
62000821121SPEC
6 files Active i| Production is active. Expected lifetime: >10 years.WR-PHD 2.00 mm THT Dual Pin Header 8 8 Dual Pin Header Straight 2 Bag
702935000SPEC
3 files Active i| Production is active. Expected lifetime: >10 years.WA-SNSR Self-Retaining Spacer 12.7 4.8
7443633300SPEC

PCN pending

Due to a pending PCN, a modification of the component will be implemented soon. Please find the PCN below. If you have further questions please get in contact with our sales staff.

9 files Active i| Production is active. Expected lifetime: >10 years.WE-HCF SMT High Current Inductor 20.8 33 13.3 9.5 11 12.54 12 Flat 2 13.5 12
60800213421SPEC
3 files Active i| Production is active. Expected lifetime: >10 years.WR-PHD 2.00 mm Jumper with Test Point 2 Jumper 3 Bag
Order Code Data­sheet Simu­lation
62000211121SPEC
62000311121SPEC
62000821121SPEC
702935000SPEC
7443633300SPEC

PCN pending

Due to a pending PCN, a modification of the component will be implemented soon. Please find the PCN below. If you have further questions please get in contact with our sales staff.

60800213421SPEC
Samples
Order Code Data­sheet Simu­lation Downloads Status Product seriesL
(mm)
f
(mm)
L
(µH)
IRP,40K
(A)
ISAT,10%
(A)
ISAT,30%
(A)
RDC max.
(mΩ)
fres
(MHz)
Wire TypePins
(pcs)
RowsH
(mm)
GenderTypeIR
(A)
Packaging Samples