LTC3897

RECOMMENDED FOR NEW DESIGNS

PolyPhase Synchronous Boost Controller with Input/Output Protection

Data Sheet (Rev. A) Product Selection Table
Part Models
12
1ku List Price
Starting From $6.55
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Part Details

  • Input Supply Range: 4.5V to 65V (Up to 75V Surge)
  • Reverse Input Protection to –40V
  • In-Rush Current Control, Overcurrent Protection and Output Disconnect for Boost Converter
  • Input Voltage Surge Protection with Adjustable Clamp Voltage
  • Onboard Ideal Diode Controller
  • Low Quiescent Current: 55µA
  • 2-Phase Operation Reduces Required Input and Output Capacitance and Noise
  • Output Voltage Up to 60V
  • Adjustable Gate Drive Level 5V to 10V (OPTI-DRIVE) for Logic-Level or Standard Threshold FETs
  • No External Bootstrap Diodes Required
LTC3897
PolyPhase Synchronous Boost Controller with Input/Output Protection
24V/10A 2-Phase Synchronous Boost Converter with Surge Protection and Reverse Protection Efficiency and Power Loss vs Output Current Product Package 1 Product Package 2
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Documentation

Data Sheet 1

Reliability Data 1

User Guide 1

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Hardware Ecosystem

Parts Product Life Cycle Description
External Power Switch Boost Controllers 1
LTC3784
RECOMMENDED FOR NEW DESIGNS 60V PolyPhase Synchronous Boost Controller with PassThru
High Voltage Hot Swap Controllers 1
LTC4380
RECOMMENDED FOR NEW DESIGNS Low Quiescent Current Surge Stopper
PowerPath, Ideal Diodes, and Load Switches 1
LTC4359
RECOMMENDED FOR NEW DESIGNS Ideal Diode Controller with Reverse Input Protection
Surge Stopper, Overvoltage, and Overcurrent Protection 1
LTC4367
RECOMMENDED FOR NEW DESIGNS 100V Overvoltage, Undervoltage and Reverse Supply Protection Controller
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Tools & Simulations

LTspice 2

Models for the following parts are available in LTspice:

  • LTC3897
LTspice

LTspice® is a powerful, fast and free simulation software, schematic capture and waveform viewer with enhancements and models for improving the simulation of analog circuits.

Evaluation Kits

eval board
schematic 1
schematic 2
schematic 3
schematic 4
DC2108A

LTC3897 Demo Board | Synchronous Boost Controller, 16V ≤ VIN ≤ 55V, VOUT = 48V @ 4A to 12A

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Product Details

Demonstration circuit DC2108 is DC/DC boost converter featuring the LTC3897 constant frequency current mode boost controller. The DC2108A operates over a 16V to 55V input and provides 4A to 12A of output current as shown in Figure 3. The 160kHz (2 •160kHz at the output) constant frequency operation results in a small and efficient circuit. The converter provides high output voltage accuracy (typically ±3%) over a wide load range with no minimum load requirement. The demonstration circuit can be easily modified to generate different output voltages.
DC2108A
LTC3897 Demo Board | Synchronous Boost Controller, 16V ≤ VIN ≤ 55V, VOUT = 48V @ 4A to 12A
DC2108A Evaluation Board DC2108A Evaluation Board - Top View DC2108A Evaluation Board - Bottom View DC2108A - Schematic

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