TPSM82480 Datasheet, PDF (1/31 Pages) Texas Instruments – 5.5-V Input, 6-A, Step-Down Converter with Integrated Inductor

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TPSM82480
SLVSDT1 – JULY 2017
TPSM82480 5.5-V Input, 6-A, Step-Down Converter with Integrated Inductor
1 Features
•1 Ultra Small 7.9 x 3.6 x 1.5 mm Power Module
• Output Current of 6 A
• Input Voltage Range 2.4 to 5.5 V
• Output Voltage Range 0.6 to 5.5 V
• Typical Quiescent Current of 23 µA
• Feedback Voltage Accuracy of ±1% (PWM Mode)
• Output Voltage Select
• Phase Shifted Operation
• Automatic Power Save Modes
• Forced PWM Mode
• Adjustable Soft Start
• Power Good / Thermal Good Outputs
• Undervoltage Lockout
• Over-current and Short-Circuit Protection
• Over-temperature Protection
• -40°C to 125°C Operating Junction Temperature
Range
2 Applications
• Low Profile Point-of-Load Supply
• Solid State Drives
• Ultra Portable/Tablet/Embedded PC
• Optical Modules, CMOS Cameras
• Wireless Modules, Network Cards
3 Description
The TPSM82480 is a synchronous step-down DC-DC
converter module for low profile point-of-load power
supplies. The input voltage range of 2.4 to 5.5 V
enables operation from typical 3.3-V or 5-V interface
supplies as well as from backup circuits dropping
down as low as 2.4 V.
The output current is up to 6 A continuously provided
by two phases of 3 A each. These run out-of-phase,
reducing pulse current noise significantly.
The TPSM82480 provides automatically entered
power save modes to maintain high efficiency down
to very light loads. This incorporates an automatic
phase adding and shedding feature using both or
only one phase according to the actual load. The
pulse skip mode for very light loads can be switched
off by using the MODE feature.
The device features a Power Good signal and an
adjustable soft start. Also, the device features a
Thermal Good signal to detect excessive internal
temperature. The output voltage can be changed to a
preselected value by VSEL pin. TPSM82480 is able
to operate in 100% duty cycle mode.
Device Information⁽¹⁾
PART NUMBER
PACKAGE
BODY SIZE (NOM)
TPSM82480MOP QFM (24)
7.90 × 3.60 x 1.55 mm
(1) For all available packages, see the orderable addendum at
the end of the data sheet.
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Typical Application Schematic
Efficiency vs Output Current, V_IN= 12 V
10µF
2.4 to 5.5V
10µF
VIN1
VOUT
R1
VIN2
FB
TPSM82480
R3
MODE
RS
VSEL
3.3nF
R2
SS/TR
EN
AGND
PG
TG
PGND
VOUT/6A
COUT
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.