TPS43060_15 Datasheet, PDF (1/43 Pages) Texas Instruments – TPS4306x Low Quiescent Current Synchronous Boost DC-DC Controller With Wide VIN Range

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TPS43060, TPS43061
SLVSBP4D – DECEMBER 2012 – REVISED SEPTEMBER 2014
TPS4306x Low Quiescent Current Synchronous Boost
DC-DC Controller With Wide V_IN Range
1 Features
2 Applications
•1 58-V Maximum Output Voltage
• 4.5 to 38 V (40 V Absolute Max) V_IN Range
• TPS43060: 7.5-V Gate Drive Optimized for
Standard Threshold MOSFETs
• TPS43061: 5.5-V Gate Drive Optimized for Low
Q_g NexFET™ Power MOSFETs
• Current-Mode Control With Internal Slope
Compensation
• Adjustable Frequency from 50 kHz to 1 MHz
• 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 Undervoltage Lockout (UVLO) and
Output Overvoltage Protection
• Small 16-Pin WQFN (3 mm × 3 mm) Package
With PowerPAD™
• –40°C to 150°C Operating T_J Range
• Thunderbolt Port for PCs
• 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
3 Description
The TPS43060 and TPS43061 are low I_Q current-
mode synchronous boost controllers with wide-input
voltage range from 4.5 to 38 V (40 V absolute 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 × 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 Q_g NexFET power
MOSFETs. Also, TPS43061 provides an integrated
bootstrap diode for the high-side gate driver to reduce
the external parts count.
Device Information⁽¹⁾
PART NUMBER
PACKAGE
BODY SIZE (NOM)
TPS43060
TPS43061
RTE (16)
3.00 mm × 3.00 mm
(1) For all available packages, see the orderable addendum at
the end of the data sheet.
4 Simplified Schematic
VIN
RSENSE
L
CI
RC
RT
CC
CSS
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
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.