Features
•
V
IN
Voltage: Support 2.5-V, 3.3-V and 5-V Power Rails
•
V
LDOIN
Voltage Range: 1.1 V to 3.5 V
•
Flexible Input Voltage Tracking Directly from REFIN or
through External Resistor Divider
•
3-A Sink and Source Current Capability for DDR
Termination
•
Integrated Power MOSFETs
•
Output Remote Sensing
•
Fast Load-Transient Response
•
Open-Drain Power Good to Monitor OUT Regulation
•
Built in Soft-Start and UVLO, Current Limit and
Thermal Shutdown Protection
•
Support DDR, DDR2, DDR3, DDR3L, Low Power
DDR3, and DDR4 VTT Applications
•
Operating Temperature Range: –40°C to +125°C
•
Small Package with DFN3x3-10
•
Pb−Free and are RoHS Compliant
•
Qualified for Automotive Applications with AEC-Q100
Reliability Test
•
Industrial and Automotive Temperature Range
Applications
•
Memory VTT Regulator for DDR, DDR2, DDR3,
DDR3L, Low Power DDR3, and DDR4
•
Notebooks, Desktops, and Workstations
•
Servers, Networking equipment and Datacenters
•
Telecom and Base Station
Description
With the development of main processors in PCs and
servers, more and more source double-data-rate (DDR)
memories are required in the mainboard, where the input
voltage becomes lower and lower, and space limitation
becomes higher and higher.
The TPL51200 series of devices are 3-A sink and
source DDR termination regulators specifically designed
for the DDR applications with heavy space limitation.
The TPL51200 series of devices implement a fast load-
transient response and only require a minimum output
capacitance of 20 μF.
The TPL51200 series of devices support a remote-sensing
function and all power requirements for DDR VTT bus
termination. In addition, the TPL51200 series of devices
provide an open-drain PG signal for VTT regulation
indication and an EN signal that can be used to discharge
VTT for DDR applications.
The TPL51200 series of devices are available in the
thermally efficient DFN3x3-10 package with a thermal pad,
and support the operating temperature range from –40°C
to +125°C.
Typical Application Circuit
TPL51200
REFIN
1 nF
10 kΩ
10 kΩ
1
2 LDOIN
0.1 μF10 μF
3 OUT
10 μF
GND
10 μF10 μF
4 PGND
5 SNS
10IN
100 kΩ
9PG
8GND
7EN
6REFOUT
0.1 μF
4.7 μF
VDDQ = 1.2 V
V
LDOIN
= VDDQ = 1.2 V
VTT = 0.6 V
V
IN
= 3.3 V
PG Signal to I/O
Enable Signal
VTTREF = 0.6 V
TPL51200-S Series
3-A Sink and Source DDR Termination Regulator
www.3peak.com 1 / 20 DA20230703A2
Table of Contents
Features................................................................................................................................................................1
Applications......................................................................................................................................................... 1
Description........................................................................................................................................................... 1
Typical Application Circuit..................................................................................................................................1
Product Family Table...........................................................................................................................................3
Revision History...................................................................................................................................................3
Pin Configuration and Functions....................................................................................................................... 4
Specifications.......................................................................................................................................................5
Absolute Maximum Ratings............................................................................................................................5
ESD, Electrostatic Discharge Protection........................................................................................................ 5
Recommended Operating Conditions............................................................................................................ 5
Thermal Information........................................................................................................................................5
Electrical Characteristics................................................................................................................................ 6
Typical Performance Characteristics.............................................................................................................. 8
Detailed Description.......................................................................................................................................... 11
Overview.......................................................................................................................................................11
Functional Block Diagram.............................................................................................................................11
Feature Description.......................................................................................................................................11
Application and Implementation...................................................................................................................... 13
Application Information ................................................................................................................................ 13
Typical Application........................................................................................................................................13
Layout................................................................................................................................................................. 15
Layout Guideline...........................................................................................................................................15
Tape and Reel Information................................................................................................................................ 16
Package Outline Dimensions........................................................................................................................... 17
DFN3X3-10-A............................................................................................................................................... 17
Order Information.............................................................................................................................................. 18
IMPORTANT NOTICE AND DISCLAIMER......................................................................................................... 19
TPL51200-S Series
3-A Sink and Source DDR Termination Regulator
www.3peak.com 2 / 20 DA20230703A2