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TPS51116-EP

Texas Instruments
Part Number TPS51116-EP
Manufacturer Texas Instruments
Description Synchronous Buck Controller
Published Jun 19, 2020
Detailed Description TPS51116-EP www.ti.com SLUSB52A – OCTOBER 2012 – REVISED NOVEMBER 2012 COMPLETE DDR, DDR2, DDR3, AND LPDDR3 MEMORY PO...
Datasheet PDF File TPS51116-EP PDF File

TPS51116-EP
TPS51116-EP

Overview
TPS51116-EP www.
ti.
com SLUSB52A – OCTOBER 2012 – REVISED NOVEMBER 2012 COMPLETE DDR, DDR2, DDR3, AND LPDDR3 MEMORY POWER SOLUTION SYNCHRONOUS BUCK CONTROLLER, 1-A LDO, BUFFERED REFERENCE Check for Samples: TPS51116-EP FEATURES 1 •2 Synchronous Buck Controller (VDDQ) – Wide-Input Voltage Range: 3.
0-V to 28-V – D−CAP™ Mode with 100-ns Load Step Response – Current Mode Option Supports Ceramic Output Capacitors – Supports Soft-Off in S4/S5 States – Current Sensing from RDS(on) or Resistor – 2.
5-V (DDR), 1.
8-V (DDR2), Adjustable to 1.
5-V (DDR3) or 1.
2-V (LPDDR3) or Output Range 0.
75-V to 3.
0-V – Equipped with Powergood, Overvoltage Protection and Undervoltage Protection • 1-A LDO (VTT), Buffered Reference (VREF) – Capable to Sink and Source 1 A – LDO Input Available to Optimize Power Losses – Requires only 20-μF Ceramic Output Capacitor – Buffered Low Noise 10-mA VREF Output – Accuracy ±20 mV for both VREF and VTT – Supports High-Z in S3 and Soft-Off in S4/S5 – Thermal Shutdown APPLICATIONS • DDR/DDR2/DDR3/LPDDR3 Memory Power Supplies • SSTL-2, SSTL-18, SSTL-15 and HSTL Termination SUPPORTS DEFENSE, AEROSPACE, AND MEDICAL APPLICATIONS • Controlled Baseline • One Assembly and Test Site • One Fabrication Site • Available in Military (–55°C to 125°C) Temperature Range • Extended Product Life Cycle • Extended Product-Change Notification • Product Traceability DESCRIPTION The TPS51116 provides a complete power supply for DDR/SSTL-2, DDR2/SSTL-18, DDR3/SSTL-15, and LPDDR3 memory systems.
It integrates a synchronous buck controller with a 1-A sink/source tracking linear regulator and buffered low noise reference.
The TPS51116 offers the lowest total solution cost in systems where space is at a premium.
The TPS51116 synchronous controller runs fixed 400-kHz, pseudo-constant frequency PWM with an adaptive on-time control that can be configured in D-CAP™ Mode for ease of use and fastest transient response or in current mode to support ceramic output capacitors.
The 1-A sink/...


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