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SM8172A - 2-output Power Supplier

Description

Number 1 2 3 4 5 6 7 8 9 10 Name VIN2 LDOUT GND ENDCO ENLDO PGND LX VIN1 FB RESETN I/O Function Supply voltage (series regulator, internal circuits) 1 O Series regulator output 2 Ground (internal circuits) Ip 3 Output enable (DC/DC converter) Ip 3 Output enable

Features

  • I Input voltage range: 4.5 to 5.5V I Standby current: 0.01µA (typ) I Series regulator.
  • Feedback-type current limiter to reduce output current when outputs are short-circuit.
  • Output voltage: 3.3V (available for optional setting from 2.1 to 3.6V by 0.1V-step).
  • Maximum output current: 450mA.
  • Voltage accuracy: ± 2% (VIN = 5.0V, Ta = 25°C) I DC/DC converter.
  • Current-mode operation for excellent transient response.
  • Output voltage: 0.8 to 1.8V (typ,.

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Datasheet preview – SM8172A

Datasheet Details

Part number SM8172A
Manufacturer NPC
File Size 194.45 KB
Description 2-output Power Supplier
Datasheet download datasheet SM8172A Datasheet
Additional preview pages of the SM8172A datasheet.

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Full PDF Text Transcription

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SM8172A 2-output Power Supply IC 1. OVERVIEW The SM8172A is a 2-output power supply IC that incorporates a step-down DC/DC converter and series regulator with built-in reset circuit. The DC/DC converter is a PWM-type synchronous rectifier. The SM8172A has soft start, overcurrent detection, supply undervoltage lockout, and thermal shutdown circuits built-in, making it ideal as a supply voltage source IC for large-scale LSIs that operate from a 5V supply. 2. FEATURES I Input voltage range: 4.5 to 5.5V I Standby current: 0.01µA (typ) I Series regulator • Feedback-type current limiter to reduce output current when outputs are short-circuit • Output voltage: 3.3V (available for optional setting from 2.1 to 3.6V by 0.1V-step) • Maximum output current: 450mA • Voltage accuracy: ± 2% (VIN = 5.
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