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IS6605A

Switching RegulatorAvailable

High Power density, high-frequency synchronous step-down converter, supporting the highest load of 6A

IS6605A

Description

IS6605A is a high power density, high-frequency, fully integrated synchronous step-down converter. It adopts a 2mm x 3mm 14-PIN QFN package, providing an area-optimized solution to achieve an output current of up to 6A. It has a high efficiency within the output load current range and exhibits excellent load regulation and linear regulation over a wide input voltage range. The IS6605A adopts an internal compensation method and uses the unique TCOT™ control mode to provide rapid transient response and simplify the loop compensation network. The switching frequency can be selected among 600kHz, 1MHz, 1.5MHz and 2MHz. The soft start time can be set by an external capacitor. An open-drain output signal of PGOOD is provided internally to indicate the working status of the chip.

Parameters

Vin Min (V)
4
Vin Max (V)
16
Iout (A)
6
Vout Min (V)
0.6
Vout Max (V)
5.5
Switching Frequency
600kHz/1.1MHz/2MHz
Operating Temperature Range (°C)
-40 ~ 125
Package
QFN 2x3
Control Mode
COT

Features

  • Featuring TCOT™ control mode for fast transient response.
  • 2.85V Minimum Start-up Input Voltage VIN (with External VCC)
  • Continuous output current of 6A
  • 1μA Typical Quiescent Current (IQ)
  • 90% Maximum Duty Cycle
  • 0.5% voltage accuracy load regulation and line regulation
  • Efficiency can reach over 90% within the load range.
  • Under light load conditions, either Skip mode or CCM mode can be selected.
  • Soft start time programmable
  • Optional switching frequencies of 600kHz, 1MHz, 1.5MHz, and 2MHz.
  • Overcurrent Protection (OCP), Negative Overcurrent Protection (NOCP), Overvoltage Protection (OVP), Undervoltage Lockout (UVLO), and Overtemperature Protection (OTP)

Typical Application Circuit

IS6605A - Typical Application Circuit