TPS43061-312168 Datasheet, PDF (1/38 Pages) Texas Instruments – Low Quiescent Current Synchronous Boost DC-DC Controller with Wide VIN Range

TPS43060
TPS43061
www.ti.com
SLVSBP4C – DECEMBER 2012 – REVISED SEPTEMBER 2013
Low Quiescent Current Synchronous Boost DC-DC Controller with Wide V_IN Range
Check for Samples: TPS43060, TPS43061
FEATURES
1
APPLICATIONS
•2 58 V Maximum Output Voltage
• Thunderbolt Port for PCs
• 4.5 V to 38 V (40 V Abs Max) V_IN Range
• TPS43060: 7.5 V Gate Drive Optimized for
Standard Threshold MOSFETs
• TPS43061: 5.5 V Gate Drive Optimized for Low
Qg NexFETs™
• Current-Mode Control with Internal Slope
Compensation
• Automotive Power Systems
• Synchronous Flyback
• GaN RF Power Amplifiers
• Tablet Computer Accessories
• Battery Powered Systems
• 5 V, 12 V, and 24 V DC Bus Power Systems
• Adjustable Frequency from 50kHz to 1MHz
• Synchronization Capability to External Clock
• Adjustable Soft-Start Time
• Inductor DCR or Resistor Current Sensing
• Output Voltage Power-Good Indicator
• ±0.8% Feedback Reference Voltage
• 5 µA Shutdown Supply Current
• 600 µA Operating Quiescent Current
• Integrated Bootstrap Diode (TPS43061)
• Cycle-by-Cycle Current Limit and Thermal
Shutdown
• Adjustable UVLO and Output Overvoltage
Protection
• Small 16-Pin WQFN (3 mm x 3 mm) Package
with PowerPAD™
• -40°C to 150°C Operating T_J Range
DESCRIPTION
The TPS43060 and TPS43061 are low I_Q current-
mode synchronous boost controllers with wide input
voltage range from 4.5 V to 38 V (40 V abs max) and
boosted output range up to 58 V. Synchronous
rectification enables high efficiency for high current
applications, and lossless inductor DCR sensing
further improves efficiency. The resulting low power
losses combined with a 3 mm x 3 mm WQFN-16
package with PowerPAD™ supports high power-
density and high reliability boost converter solutions
over extended (-40°C to 150°C) temperature range.
The TPS43060 includes a 7.5 V gate drive supply
which is suitable to drive a broad range of MOSFETs.
The TPS43061 has a 5.5 V gate drive supply and
driver strength optimized for low Qg NexFET™. In
addition, TPS43061 provides an integrated bootstrap
diode for the high side gate driver to reduce external
parts count.
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SIMPLIFIED SCHEMATIC
VIN
RSENSE
L
CI
RC
RT
CSS
CC
TPS43060/61
ISNS-
BOOT
ISNS+
VIN
VCC
EN
PGOOD
COMP
PGND
LDRV
RT/CLK
SS
FB
SW
HDRV
AGND
QH
CBOOT
DBOOT
(Note1) ^QL
CVCC
VOUT
CO
RSL
RSH
Note 1: DBOOT is required for TPS43060, but optional for TPS43061.
1
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
NexFETs, PowerPAD are trademarks of Texas Instruments.
2
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
Copyright © 2012–2013, Texas Instruments Incorporated