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TPS40140 Datasheet(PDF) 1 Page - Texas Instruments

Part No. TPS40140
Description  Dual or 2-Phase, Stackable Controller
Download  68 Pages
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Manufacturer  TI1 [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI1 - Texas Instruments

TPS40140 Datasheet(HTML) 1 Page - Texas Instruments

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HDRV1
SW1
LDRV1
HDRV2
TPS40140
SW2
LDRV2
L1
CS1
VIN
CSRT1
L2
CS2
VIN
CSRT2
VOUT1
VOUT2
UDG−06016
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TPS40140
SLUS660I – SEPTEMBER 2005 – REVISED JANUARY 2015
TPS40140 Dual or 2-Phase, Stackable Controller
1 Features
2 Applications
1
VDD from 4.5 to 15 V, With Internal 5-V Regulator
Graphic Cards
VOUT from 0.7 V to 5.8 V
Internet Servers
Converts from 15-V Input to 0.7-V Output at
Networking Equipment
1 MHz
Telecommunications Equipment
Dual-Output or 2-Phase Interleaved Operation,
DC Power Distributed Systems
Stackable to 16 Phases
3 Description
Supports Prebiased Outputs
The TPS40140 is a multifunctional synchronous buck
Programmable Switching Frequency up to
controller that can be configured to provide either a
1 MHz/Phase
single-output 2-phase power supply or a power
0.5% Internally Trimmed 0.7-V Reference
supply
that
supports
two
independent
outputs.
10-
μA Shutdown Current
Several TPS40140 controllers can be stacked up to a
16-phase single output power supply. Alternatively,
Current Mode Control With Forced Current
several controllers providing multiple independent
Sharing (1)
outputs can be synchronized in an interleaving
1- to 40-V Power Stage Operation Range
pattern for improved input ripple current.
Power Sharing From Different Input Voltage Rails,
The TPS40140 can convert from a 15-V input to a
(for Example, Master From 5 V, Slave From 12 V)
0.7-V output at 1 MHz.
True Remote Sensing Differential Amplifier
Each phase operates at a switching frequency of up
Programmable Input Undervoltage Lockout
to 1 MHz. The two phases in one device operate
(UVLO)
180° out-of-phase. In a multiple-device stackable
Resistive or Inductor DCR Current Sensing
configuration, the phase shift of the slaves, relative to
a master, is programmable.
Provide a 6-Bit Digitally Controlled Output When
Used With TPS40120
Device Information(1)
36-Pin VQFN Package
PART NUMBER
PACKAGE
BODY SIZE (NOM)
TPS40140
VQFN (36)
6.00 mm × 6.00 mm
(1) For all available packages, see the orderable addendum at
the end of the data sheet.
(1)
Patents Pending
Simplified Schematic
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.


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