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ALLEGRO MICROSYSTEMS  A4490EES-T  IC, REG TRIPLE O/P, STEP DOWN

ALLEGRO MICROSYSTEMS A4490EES-T
Technical Data Sheet (390.28KB) EN See all Technical Docs

Image is for illustrative purposes only. Please refer to product description.

Product Overview

The A4490EES-T is a triple output step-down Switching Regulator with multiphase switching and independent control of each converter. The A4490 regulator provides three high current, high performance and switching regulator outputs with independent soft start. High frequency switching allows selection of inexpensive inductors and small ceramic output capacitors. The turn-on cycles of the regulator is interleaved to minimize stresses on the input capacitors and to reduce EMI. A charge pump is used to provide the supply for driving the power switches, ensuring operation at very wide operating duty cycles and avoiding the need for power-draining clamp circuits. Internal diagnostics provide comprehensive protection against overloads, input under-voltages and over-temperatures.
  • Internal compensation
  • Power-on-reset flag
  • 550kHz Fixed frequency
  • -40 to 85°C Operating temperature range

Product Information

Input Voltage Min:
4.5V
Input Voltage Max:
34V
No. of Outputs:
3 Output
DC / DC Converter IC Case:
QFN
No. of Pins:
20Pins
Output Current - Output 1:
1.5A
Output Current - Output 2:
1.5A
Output Voltage - Output 1:
5V
Output Voltage - Output 2:
5V
Regulator Output Type:
Adjustable
Switching Frequency:
630kHz
Topology:
Buck (Step Down)
Operating Temperature Max:
85°C
Packaging:
Cut Tape
Product Range:
-
MSL:
MSL 2 - 1 year
SVHC:
No SVHC (15-Jun-2015)

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Applications

  • Industrial;
  • Computers & Computer Peripherals

Legislation and Environmental

Moisture Sensitivity Level:
MSL 2 - 1 year
Country of Origin:
Philippines

Country in which last significant manufacturing process was carried out

RoHS Compliant:
Yes
Tariff No:
85423990
Weight (kg):
.000058