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IS6620A

Power Management ICAvailable

Highly integrated non-isolated dual-output DC-DC converter Configurable as two independent dual 6A or single dual-phase 12A power supplies

IS6620A

Description

The IS6620A is a highly integrated non-isolated dual-channel DC-DC converter, capable of delivering a single-phase single-output of 6A or a dual-phase parallel single-output of 12A within an input voltage range of 4.5V to 16V, with an output voltage range of 0.5V to 5.5V. It employs pseudo-current mode control and features selectable ramp amplitude configurations to optimize loop bandwidth. The IS6620A benefits from optimized circuit design, improved wafer fabrication processes, and advanced packaging technology, resulting in higher power density, improved conversion efficiency, enhanced noise immunity, and more stable output voltage. The chip integrates comprehensive protection functions, including pre-bias startup protection, soft-start protection, NOCP, OVP, UVP, and OTP.

Parameters

Package
FC-QFN 3x5
Vin1 (V)
4.5-18
Vout1 (V)
0.5-5.5
Iout1 (A)
6
Vin2 (V)
4.5-18
Vout2 (V)
0.5-5.5
Iout2 (A)
6
Application
SOC/Wireless Equipment/Measurement Equipment

Features

  • Single channel 6A single output
  • Dual-channel parallel 12A single output
  • Pseudo-Current Control Mode with Internal Compensation
  • Output range: 0.6V~5.5V, maximum 90% duty cycle
  • Supports synchronization of external clocks via SYNC and CLKO.
  • Optional operating frequencies: 500kHz, 1MHz, 1.5MHz, and 2 MHz.
  • Two mode selection pins (MODE1 and MODE2) are used to select switching frequency, configuration, clock phase delay, and internal compensation.
  • Support for secure pre-biased startup
  • Multiphase operation employs true differential remote sensing.
  • Integrated 20mΩ and 8mΩ MOSFETs with Lossless Current Sensing
  • Delayed over-temperature protection

Typical Application Circuit

IS6620A - Typical Application Circuit