AAT2689

Specifications2-Output Step-Down Converters:Channel 1 (Buck): VIN1 = 6V to 24VVOUT1 adjustable from 1.5V to 5.5VIOUT1 up to 2.5AHigh Switching FrequencyVoltage Mode ControlPWM Fixed Frequency for Low-RippleChannel 2 (LDO): VIN2 = 2.7V to 5.5VIOUT2 up to 600mA1V Dropout Voltage at 600mAHigh Accurac...

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SeekIC No. : 004261087 Detail

AAT2689: Specifications2-Output Step-Down Converters:Channel 1 (Buck): VIN1 = 6V to 24VVOUT1 adjustable from 1.5V to 5.5VIOUT1 up to 2.5AHigh Switching FrequencyVoltage Mode ControlPWM Fixed Frequency for Lo...

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Part Number:
AAT2689
Supply Ability:
5000

Price Break

  • Qty
  • 1~5000
  • Unit Price
  • Negotiable
  • Processing time
  • 15 Days
Total Cost: $ 0.00

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Upload time: 2024/6/7

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Product Details

Description



Specifications

  • 2-Output Step-Down Converters:
    • Channel 1 (Buck): VIN1 = 6V to 24V
      • VOUT1 adjustable from 1.5V to 5.5V
      • IOUT1 up to 2.5A
      • High Switching Frequency
      • Voltage Mode Control
      • PWM Fixed Frequency for Low-Ripple
    • Channel 2 (LDO): VIN2 = 2.7V to 5.5V
      • IOUT2 up to 600mA
      • 1V Dropout Voltage at 600mA
      • High Accuracy ±1.5%
  • Small Solution Size
    • System on a Chip
    • Ultra-small External L/C
  • Shutdown Current <35µA
  • Independent Enable Pins
  • Adjustable Over-Current Protection
  • Over-Temperature Protection
  • Internal Soft Start
  • 3x4mm 16-Pin TDFN Low Profile Thermally Enhanced Package
  • -40C to 85C Temperature Range



Description

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The AAT2689 provides two independently regulated DC outputs, consisting of a high voltage step-down (Buck) regulator and a low input voltage low dropout (LDO) regulator. The PMIC is optimized for low cost 12V adapter inputs, making the device the ideal system-on-a-chip power solution for consumer communications equipment.

Channel 1 is a step-down (Buck) regulator with an input voltage range of 6V to 24V providing up to 2500mA output current. 490kHz fixed switching frequency allows small L/C filtering components. Channel 1 utilizes voltage mode control configured for optimum performance across the entire output voltage and load range.

Channel 2 is a low-dropout (LDO) regulator providing up to 600mA output current. The device provides extremely low output noise, low quiescent current and excellent transient response.

The AAT2689 controller includes integrated cycle-by-cycle over-current protection, soft-start and over-temperature disable features. Independent input and enable pins provide maximum design flexibility.

The AAT2689 is available in the Pb-free 3x4mm 16-pin TDFN package. The rated operating temperature range is -40C to 85C.




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