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Analog Devices LTC7803 | Demoboard DC2834A

High Frequency, Low IQ Synchronous Step-Down Controller

Overview

TopologyBuck Converter
Input voltage5-38 V
Output 13.3 V / 20 A

Description

Demonstration circuit DC2834A is a DC/DC synchronous step-down converter featuring the LTC®7803 (MSE package), a spread spectrum or constant frequency current mode synchronous step-down controller. The DC2834A generates a 3.3V of output voltage.

Features

  • Wide input voltage range: from 5V to 38V
  • High load current, up to 20A
  • Extremely low quiescent current: 15μA in sleep mode and as low as 1μA at shutdown
  • Ability to select spread spectrum or fixed frequency
  • Selectable pulse-skipping, forced continuous operation or low ripple Burst Mode® operation at light loads
  • Synchronization with external clock
  • The DC2834A supports RSENSE or inductor DCR cur¬rent sensing (optional).

Products

Order Code Data­sheet Simu­lation Downloads Status Product seriesL
(µH)
ISAT
(A)
RDC max.
(mΩ)
fres
(MHz)
MountCTol. CVR
(V (DC))
SizeOperating TemperatureDF
(%)
RISOCeramic TypeL
(mm)
W
(mm)
Fl
(mm)
Pins
(pcs)
Pitch
(mm)
RowsH
(mm)
GenderTypeIR
(A)
Packaging Samples
7843320068SPEC

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-CHSA SMT High Current Inductor 0.68 41.4 2.05 88 SMT 1212 -55 °C up to +150 °C 12.2 12.2 11.75 25.3
885012206020SPEC
9 files Active i| Production is active. Expected lifetime: >10 years.WCAP-CSGP MLCCs 10 V(DC)100 nF ±10% 10 0603 -55 °C up to +125 °C 55 GΩ X7R Class II 1.6 0.8 0.4 0.8 7" Tape & Reel
60800213421SPEC
3 files Active i| Production is active. Expected lifetime: >10 years.WR-PHD Jumper -25 °C up to +105 °C1000 MΩ 2 2 Jumper 3 Bag
62000311121SPEC
7 files Active i| Production is active. Expected lifetime: >10 years.WR-PHD Pin Header THT -40 °C up to +105 °C1000 MΩ 6 3 2 Single Pin Header Straight 2 Bag
62000621121SPEC
7 files Active i| Production is active. Expected lifetime: >10 years.WR-PHD Pin Header THT -40 °C up to +105 °C1000 MΩ 6 6 2 Dual Pin Header Straight 2 Bag
Order Code Data­sheet Simu­lation
7843320068SPEC

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.

885012206020SPEC
60800213421SPEC
62000311121SPEC
62000621121SPEC
Samples
Order Code Data­sheet Simu­lation Downloads Status Product seriesL
(µH)
ISAT
(A)
RDC max.
(mΩ)
fres
(MHz)
MountCTol. CVR
(V (DC))
SizeOperating TemperatureDF
(%)
RISOCeramic TypeL
(mm)
W
(mm)
Fl
(mm)
Pins
(pcs)
Pitch
(mm)
RowsH
(mm)
GenderTypeIR
(A)
Packaging Samples