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Reference Design
TPS51200-Q1
SLUS984C – NOVEMBER 2009 – REVISED APRIL 2018
TPS51200-Q1 Sink and Source DDR Termination Regulator
1 Features
•1 Qualified for Automotive Applications • AEC-Q100 Test Guidance With the Following
Results: – Device Temperature Grade 1: –40°C to 125°C
Ambient Operating Temperature – Device HBM ESD Classification Level 2 – Device CDM ESD Classification Level C4B • Input Voltage: Supports 2.5-V Rail and 3.3-V Rail • VLDOIN Voltage Range: 1.1 V to 3.5 V • Sink/Source Termination Regulator Includes Droop Compensation • Requires Minimum Output Capacitance of 20-μF (typically 3 × 10-μF MLCCs) for Memory Termination Applications (DDR) • PGOOD to Monitor Output Regulation • EN Input • REFIN Input Allows for Flexible Input Tracking Either Directly or Through Resistor Divider • Remote Sensing (VOSNS) • ±10-mA Buffered Reference (REFOUT) • Built-in Soft Start, UVLO and OCL • Thermal Shutdown • Meets DDR, DDR2 JEDEC Specifications; Supports DDR3, DDR3L, Low-Power DDR3 and DDR4 VTT Applications • VSON-10 Package With Exposed Thermal Pad
2 Applications
• Memory Termination Regulator for DDR, DDR2, DDR3, DDR3L, Low Power DDR3 and DDR4
• Notebook, Desktop, Server • Telecom and Datacom, GSM Base Station, LCD-
TV and PDP-TV, Copier and Printer, Set-Top Box
3 Description
The TPS51200-Q1 device is a sink and source double-data-rate (DDR) termination regulator specifically designed for low input voltage, low-cost, low-noise systems where space is a key consideration.
The TPS51200-Q1 device maintains a fast transient response and only requires a minimum output capacitance of 20 μF. The TPS51200-Q1 device supports a remote sensing function and all power requirements for DDR, DDR2, DDR3, DDR3L, Low Power DDR3 and DDR4 VTT bus termination.
In addition, the TPS51200-Q1 device provides an open-drain PGOOD signal to monitor the output regulation and an EN signal that can be used to discharge VTT during S3 (suspend to RAM) for DDR applications.
The TPS51200-Q1 device is available in the thermally-efficient VSON-10 package, and is rated both green and Pb-free. The device is specified from –40°C to 125°C.
Device Information(1)
PART NUMBER
PACKAGE
BODY SIZE (NOM)
TPS51200-Q1
VSON (10)
3.00 mm × 3.00 mm
(1) For all available packages, see the orderable addendum at the end of the datasheet.
Standard DDR Application
VDDQ
TPS51200-Q1
1 REFIN
VIN 10
3.3 VIN
VLDOIN VTT
2 VLDOIN PGOOD 9
3 VO
GND 8
4 PGND
EN 7
5 VOSNS REFOUT 6
PGOOD
SLP_S3 VTTREF 0.1 µF
UDG-08025
1
An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications, intellectual property matters and other important disclaimers. PRODUCTION DATA.
TPS51200-Q1
SLUS984C – NOVEMBER 2009 – REVISED APRIL 2018
www.ti.com
Table of Contents
1 Features .................................................................. 1 2 Appli.