TPSM82810 Datasheet | Texas Instruments

Features - Input voltage range: 2.75 V to 6 V - Output voltage range: 0.6 V to 5.5 V - Adjustable and synchronizable switching frequency of 1.8 MHz to 4 MHz - Spread spectrum clocking - optional - Selectable forced PWM or PFM/PWM operation - Output voltage accuracy ±1% (PWM operation) - Power-good output with window parator - 100% duty cycle - Output discharge - Precise ENABLE input allows - User-defined undervoltage lockout - Exact sequencing - 15-µA typical quiescent current - Adjustable soft-start or tracking 2 Applications - Optical modules, data center interconnect - Signal measurement, source generation, instrumentation - Patient monitoring and diagnostics - Wireless infrastructure - Ruggedized munication: sensors, imaging, and radar 3 Description TPSM8281x is a family of pin-to-pin 3-A and 4-A patible high efficiency and easy to use synchronous step-down DC/DC power modules with integrated inductors. They are based on a fixedfrequency peak current-mode control topology. They are used in telemunication, test and measurement, and medical applications with high power density and ease of use requirements. Low resistance switches allow up to 4-A continuous output current at high ambient temperatures. The switching frequency is externally adjustable from 1.8 MHz to 4 MHz and can also be synchronized to an external clock in the same frequency range. In PFM/PWM mode, the TPSM8281x automatically enters Power Save Mode at light loads to maintain high efficiency across the whole load range. The TPSM8281x provides a 1% output voltage accuracy in PWM mode which helps design a power supply with high output voltage accuracy. The SS/TR pin sets the start-up time or tracks the output voltage to an external source. This allows external sequencing of different supply rails and limits the inrush current during startup. Device Information PART NUMBER PACKAGE(1) BODY SIZE (NOM) µSi L 3-mm x 4-mm x 2.4-mm TPSM82813 µSi L 3-mm x 4-mm x 2.4-mm (1) For all...