IC manufacturers Analog Devices

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Analog Devices MAX17640A

60V, 400mA, Ultra-Small, High-Efficiency, Synchronous Step-Down DC-DC Converters

Overview

TopologyBuck Converter
Input voltage5-48 V
Switching frequency465-535 kHz
Output 13.3 V / 0.4 A

Description

The Himalaya series of voltage regulator ICs, power modules, and chargers enable cooler, smaller, and simpler power-supply solutions. The MAX17640 family of products are high-efficiency, high-voltage, Himalaya synchronous DC-DC converters with integrated MOSFETs operating over a wide input-voltage range of 4.5V to 60V.

Features

  • Eliminates External Components and Reduces Total Cost
  • No Schottky—Synchronous Operation for High Efficiency and Reduced Cost
  • Internal Compensation
  • Internal Feedback Divider for Fixed 3.3V, 5V Output Voltages - Internal Soft-Start
  • All Ceramic Capacitors, Ultra-Compact Layout
  • Flexibility to Support Multiple Rails in a System
  • Wide 4.5V to 60V Input Voltage Range
  • Fixed 3.3V and 5V Output Voltage Options
  • Adjustable 0.9V to 0.89 x VIN Output Voltage Option
  • Delivers up to 400mA Load Current
  • Configurable Between PFM and Forced-PWM Modes
  • Reduces Power Dissipation
  • 92% Peak Efficiency
  • PFM Feature for High Light-Load Efficiency
  • 2.2μA (typ) Shutdown Current
  • Operates Reliably in Adverse Industrial Environments
  • Hiccup-Mode Current Limit and Auto-retry Startup
  • Built-In Output Voltage Monitoring with Open-Drain RESET Pin
  • Programmable EN/UVLO Threshold
  • Monotonic Startup into Prebiased Output
  • Overtemperature Protection
  • Wide -40°C to +125°C Ambient Operating Temperature Range and -40°C to +150°C Junction Temperature Range
  • Complies with CISPR32 (EN55032) Class B Conducted and Radiated Emissions

Typical applications

  • 4–20mA Current Loops, HVAC and Building Control, High-Voltage LDO Replacement, General Purpose Point-of-Load
  • Industrial Sensors

Products

Order Code Data­sheet Simu­lation Downloads Status Product seriesL
(µH)
IR
(A)
ISAT
(A)
RDC
(mΩ)
fres
(MHz)
Samples
74404054470SPEC
8 files Active i| Production is active. Expected lifetime: >10 years.WE-LQS SMT Power Inductor 47 1 1.2 272 10
Order Code Data­sheet Simu­lation
74404054470SPEC
Samples
Order Code Data­sheet Simu­lation Downloads Status Product seriesL
(µH)
IR
(A)
ISAT
(A)
RDC
(mΩ)
fres
(MHz)
Samples