TPSM846C23_17 Datasheet, PDF (1/82 Pages) Texas Instruments – 4.5-V to 15-V Input, 0.35-V to 2.0-V Output, 35-A PMBus Power Module

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TPSM846C23
SLVSDF3C – MARCH 2017 – REVISED AUGUST 2017
TPSM846C23 4.5-V to 15-V Input, 0.35-V to 2.0-V Output, 35-A PMBus™ Power Module
1 Features
•1 Complete Integrated PMBus™ Power Solution
• Stackable up to 70 A with Current Sharing
• Output Voltage Range 0.35 V to 2.0 V
• Output Voltage Accuracy as tight as 0.5%
• 15 mm x 16 mm Footprint
– 6.4 mm Max Height
• 300 kHz – 1 MHz Switching Frequency Range
• Synchronization to an External Clock
• Differential Remote Sense
• Power Good Output
• Pre-bias Output Monotonic Start-up
• Programmable via PMBus
– Overcurrent Protection
– UVLO, Soft-Start, Soft-Stop
– Turn-On and Turn-Off Delays
– Fault Responses
• Operating IC Junction Range: –40°C to 125°C
• Operating Ambient Range: –40°C to 105°C
• MSL3 / 260°C peak / 3× Reflow
• Create a Custom Design Using the TPSM846C23
With the WEBENCH^® Power Designer
2 Applications
• Compact PCI / PCI Express / PXI Express
• Broadband and Communications Infrastructure
• Automated Test and Medical Equipment
• DSP and FPGA Point-of-Load Applications
3 Description
The TPSM846C23 is a 35-A fixed-frequency step
down power module that is PMBus compliant and
supports PMBus commands that allow for the
configuration, control, and monitoring of key power
regulator functions. The module incorporates the
controller, power MOSFETs, inductor, and associated
components into a rugged, thermally enhanced,
surface mount package. The user supplies the input
and output capacitors along with a few other passive
components to set the operating parameters of the
module. Two modules can be configured to work in
parallel to provide up to a 70-A, two-phase power
solution.
The PMBus interface provides for converter
configuration of Output Voltage, UVLO, Soft Start,
Soft Stop, Over-Current, and Thermal shutdown
parameters. The interface provides support for
telemetry that can report the actual output voltage,
output current, and device temperature. Standard
PMBus “warning” and “fault” functions are also
supported. The device supports PMBus
communication speeds up to 400 kHz, and supports
a subset of the commands in the PMBus 1.3
specification.
The 15 mm × 16 mm PCB footprint is easy to solder
onto a printed circuit board and allows a compact,
point-of-load design.
Device Information⁽¹⁾
PART NUMBER PACKAGE
BODY SIZE (NOM)
TPSM846C23
MOL (59)
15 mm × 16 mm
(1) For all available packages, see the orderable addendum at
the end of the data sheet.
Simplified Schematic
VIN
VIN
VS+
VOUT
VOUT
PMBUS
INTERFACE
PGND
TPSM846C23
DATA
CLK
ALERT
CNTL
ADDR1
ADDR0
PGND AGND
PGND
VS-
DIFFO
FB
Copyright © 2017, Texas Instruments Incorporated
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. ADVANCE INFORMATION for pre-production products; subject to
change without notice.