IC manufacturers Analog Devices

IC manufacturers (99)

Analog Devices LTC3315B

Dual 5V, 2A Synchronous Step-Down DC/DCs in 2mm × 2mm LQFN

Overview

TopologyBuck Converter
Input voltage3.3 V
Switching frequency10000 kHz
Output 11.2 V / 2 A
Output 22 V / 2 A

Description

The LTC®3315B features dual 2A monolithic synchronous step-down converters operating from a 2.25V to 5.5V input supply in one package for space-constrained applications with demanding performance requirements. Using constant frequency, peak current mode control at switching frequencies up to 10MHz with a minimum ontime as low as 25ns, both bucks achieve high efficiency and fast transient response in a very small application footprint.

Features

  • Dual Outputs Each with 2A Output Current
  • High Efficiency: 19mΩ NMOS and 75mΩ PMOS
  • Wide Bandwidth, Fast Transient Response
  • Switching Frequency Synchronizable Up to 10MHz
  • VIN Range: 2.25V to 5.5V
  • VOUT Range: 0.5V to VIN
  • VOUT Accuracy: }1%
  • Low Ripple Burst ModeR Operation
  • Peak Current Mode Control
  • Minimum On-Time: 25ns
  • Safely Tolerates Inductor Saturation in Overload
  • Shutdown Current: 1.2μA
  • Precision 400mV Enable Thresholds
  • Internal Soft-Start and Compensation
  • Power Good Output
  • Low Profile, Thermally Enhanced 12-Lead 2mm × 2mm × 0.74mm LQFN Package
  • AEC-Q100 Qualified for Automotive Applications

Typical applications

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

Products

Order Code Data­sheet Simu­lation Downloads Status Product seriesL
(µH)
IR
(A)
ISAT1
(A)
ISAT2
(A)
RDC max.
(mΩ)
fres
(MHz)
VersionISAT
(mA)
RDC
(mΩ)
Samples
74479276124SPEC

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.

8 files Active i| Production is active. Expected lifetime: >10 years.WE-PMCI Power Molded Chip Inductor 0.24 9 2.8 6.7 21 280 Standard 5400
744040240047SPEC
8 files Active i| Production is active. Expected lifetime: >10 years.WE-LQS SMT Power Inductor 0.47 2.6 231 5000 32
Order Code Data­sheet Simu­lation
74479276124SPEC

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.

744040240047SPEC
Samples
Order Code Data­sheet Simu­lation Downloads Status Product seriesL
(µH)
IR
(A)
ISAT1
(A)
ISAT2
(A)
RDC max.
(mΩ)
fres
(MHz)
VersionISAT
(mA)
RDC
(mΩ)
Samples