SI-3002KWM: 1 A, Low-Dropout, Dual Output, 2.5 V and 3.3 V Regulator

These parts are in production but have been determined to be not for new design. This classification indicates that sale of this device is currently restricted to existing customer applications. These devices should not be purchased for new design applications because obsolescence in the near future is probable. Samples are no longer available.

Designed to meet the high-current requirements in industrial and consumer applications; embedded core, memory, or logic supplies; TVs, VCRs, and office equipment, the SI-3002KWM voltage regulator offers the reduced dropout voltage and low quiescent current essential for improved efficiency. This device delivers dual regulated outputs at up to 1 A. Integrated thermal and overcurrent protection enhance overall system reliability. Devices with other output voltages are also available.

Quiescent current does not increase significantly as the dropout voltage is approached, an ideal feature in standby/resume power systems where data integrity is crucial. Regulator accuracy and excellent temperature characteristics are provided by a bandgap reference. An LS-TTL/CMOS-compatible input gives the designer complete control over power up, standby, or power down. A pnp pass element provides a dropout voltage of less than 600 mV at 1 A of load current. Low output voltages eliminate the need for expensive PWM buck converters. The low dropout voltage permits more efficient regulation before output regulation is lost.

This device is supplied in a 5-lead TO-252 style surface-mount plastic package with ground tab to provide a low-resistance path for maximum heat dissipation.

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  • 1 A Output Current per Channel
  • 0.6 V Maximum Dropout Voltage at IO = 1 A
  • Fast Transient Response
  • 1.5 mA Maximum Standby Current
  • Foldback Current Limiting
  • Ground Tab for Superior Heat Dissipation
  • Thermal Protection

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Functional Block Diagram Package and Pinout Diagram

Part Number Specifications and Availability

Part Number Package Type Temperature RoHS
Part Composition /
RoHS Data
Comments Samples Check
Distributor Stock
SI-3002KWM 5-lead TO-252 -40°C to 125°C Yes View Data Not for new design Contact your
local sales rep
Check Stock

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