IC manufacturers Analog Devices

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Analog Devices LTC3303A | Demoboard DC3252A

Evaluating the LTC3303A, 3.3 V to 1.2 V at 4 A, 2 MHz Synchronous Step-Down Regulator in a 2 mm × 2 mm SWF FCQFN

Overview

TopologyBuck Converter
Input voltage2.25-5.5 V
Switching frequency1600-2400 kHz
Output 11.22 V / 4 A

Description

Demonstration Circuit DC3252A features the LTC3303A, 5 V, 4 A synchronous step-down silent switcher operating as a 2 MHz, 3.3 V to 1.2 V, 4 A buck regulator. The LTC3303A supports adjustable output voltages from 0.5 V to VIN. The LTC3303A is a compact, high efficiency, and high-speed synchronous monolithic step-down switching regulator. A minimum on-time of 27 ns enables high VIN to low VOUT conversion.The DC3252A operating mode can be selected as Burst Mode operation, skip (PS) or forced continuous (FC) mode. Setting JP1 to the SKIP position allows the LTC3303A to sync to a clock frequency from 1.6 MHz to 2.4 MHz. The LTC3303A operates in forced continuous mode when syncing to an external clock.

Features

  • LTC3303A evaluation board
  • Transient circuit included for load-transient evaluation
  • EMI filter included to reduce noise in EMI emission tests

Typical applications

  • Optical Networking, Servers, Telecom, Communications
  • Telecom power supplies, FPGA, ASIC, μP Core Supplies, Distributed DC Power Systems (POL)

Products

Order Code Data­sheet Downloads Status Product seriesZ @ 100 MHz
(Ω)
Zmax
(Ω)
RDC
(mΩ)
Pins (Value)
(pcs)
RowsH
(mm)
GenderTypeIR
(A)
Packaging Samples
78279226101SPEC
9 files Active i| Production is active. Expected lifetime: >10 years.WE-MPSA EMI Multilayer Power Suppression Bead 100 160 6 2.3 High Current 8
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
62000311121SPEC
6 files Active i| Production is active. Expected lifetime: >10 years.WR-PHD 2.00 mm THT Pin Header 3 Single Pin Header Straight 2 Bag
62000411121SPEC
6 files Active i| Production is active. Expected lifetime: >10 years.WR-PHD 2.00 mm THT Pin Header 4 Single Pin Header Straight 2 Bag
Samples
Order Code Data­sheet Downloads Status Product seriesZ @ 100 MHz
(Ω)
Zmax
(Ω)
RDC
(mΩ)
Pins (Value)
(pcs)
RowsH
(mm)
GenderTypeIR
(A)
Packaging Samples