0
ACTIVE
Rating |
Catalog |
Topology |
Buck |
Iout (max) (A) |
2 |
Vin (max) (V) |
6 |
Vin (min) (V) |
2.7 |
Vout (max) (V) |
5.5 |
Vout (min) (V) |
0.6 |
Features |
Adjustable soft start, Enable, Forced PWM, Frequency synchronization, Light load efficiency, Output discharge, Over Current Protection, Power good, Pre-Bias Start-Up, Soft Start Adjustable, Soft-start adjustable, Synchronous Rectification, Tracking, UVLO adjustable |
EMI features |
Spread Spectrum |
Control mode |
current mode |
Operating temperature range (°C) |
-40 to 150 |
Iq (typ) (A) |
0.000017 |
Duty cycle (max) (%) |
100 |
TI functional safety category |
Functional Safety-Capable |
SOT-5X3 (DRL)-8-3.36 mm² 2.1 x 1.6
The TPS62851x is a family of pin-to-pin 0.5-A, 1-A, 2-A (continuous), and 3-A (peak) high efficiency, easy-to-use, synchronous step-down DC/DC converters. They are based on a peak current mode control topology. Low resistive switches allow up to 2-A continuous output current and 3-A peak current. The switching frequency is internally fixed at 2.25 MHz and can also be synchronized to an external clock in the range from 1.8 MHz to 4 MHz. In PWM/PFM mode, the TPS62851x automatically enters power save mode at light loads to maintain high efficiency across the whole load range. The TPS62851x provide a 1% output voltage accuracy in PWM mode, which helps design a power supply with high output voltage accuracy. The SS/TR pin allows setting the start-up time or tracking the output voltage to an external source, which allows external sequencing of different supply rails and limits the inrush current during start-up.
The TPS62851x is available in an 8-pin 1.60-mm × 2.10-mm SOT583 package, offering a high power density solution.
WELL LINK CHIPS GROUP CO.,LIMITED FLAT/RM 1802 BEVERLY HOUSE 93-107 LOCKHART ROAD WANCHAI HK
