TS30013 Current-Mode Synchronous Buck DC/DC Conver

By Semtech 71

TS30013 Current-Mode Synchronous Buck DC/DC Conver

Semtech's TS30013 is a 3 A DC/DC synchronous switching regulator with fully integrated power switches, internal compensation, and full fault protection. The switching frequency of 1 MHz enables the use of smaller filter components resulting in minimal board space and reduced BOM costs.

It utilizes current-mode feedback in normal regulation PWM mode. When the regulator is placed in standby (EN is low), the device draws less than 10 µA quiescent current and integrates a wide range of protection circuitry including input supply under-voltage lockout, output voltage soft-start, current limit, and thermal shutdown.

The TS30013 includes supervisory reporting through the power good (PG) open drain output to interface other components in the system.

Features Applications
  • Fixed output voltage choices: 1.5 V, 1.8 V, 2.5 V, 3.3 V, and 5 V with ±2% output tolerance
  • Adjustable version output voltage range: 0.9 V to 5.5 V with ±1.5% reference
  • 1 MHz ±10% fixed switching frequency
  • Continuous output current: 3 A (TS30013)
  • High efficiency: up to 95%
  • Current mode PWM control with PFM mode for improved light load efficiency
  • Voltage supervisor for VOUT reported at the PG pin
  • Input supply under-voltage lockout
  • Soft-start for controlled startup with no overshoot
  • Full protection for over-current, over-temperature, and VOUT over-voltage
  • Less than 10 µA in standby mode
  • Low external component count
  • On-card switching regulators
  • Set-top boxes, DVDs, LCDs, LED supplies
  • Industrial power supplies
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