TPS62184_15 Datasheet, PDF (1/32 Pages) Texas Instruments – TPS62184 4-V to 17-V, 6-A, 2-Phase Step-Down Converter with AEE™

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TPS62184
SLVSCQ5A – DECEMBER 2014 – REVISED FEBRUARY 2015
TPS62184 4-V to 17-V, 6-A, 2-Phase Step-Down Converter with AEE™
1 Features
•1 Dual Phase Balanced Peak Current Mode
• Input Voltage Range: 4 V to 17 V
• Output Voltage:
– 0.9 V ≤ VOUT ≤ 1.8 V (6A),
– 1.8 V ≤ VOUT ≤ 2.5 V (5.5A)
– 2.5 V ≤ VOUT ≤ 3.5 V (5A)
• Typical Quiescent Current of 28 µA
• Output Voltage Accuracy of ±1% (PWM Mode)
• Automatic Efficiency Enhancement (AEE™)
• Phase Shifted Operation
• Automatic Power Save Mode
• Adjustable Soft Start
• Power Good Output
• Undervoltage Lockout
• HICCUP Over Current Protection
• Over Temperature Protection
• Pin to Pin Compatible with TPS62180/2
• NanoFree™ 2.10 mm x 3.10 mm DSBGA
Package
2 Applications
• Low Profile POL Supply
• NVDC Powered Systems
• Dual/Triple Cell Li-ion Battery
• Ultra Portable/Embedded/Tablet PC
• Computing Network Solutions
• Micro Server, SSD
3 Description
The TPS62184 is a synchronous dual-phase step-
down DC-DC converter for low profile power rails. It
operates with two identical, current balanced phases
that are peak current controlled enabling use in
height limited applications.
With a wide operating input voltage range of 4 V to
17 V, the device is ideally suited for systems powered
from multi-cell Li-Ion batteries or 12-V rails. The
output current of 6 A is continuously provided by two
phases of 3 A each, allowing the use of low profile
external components. The phases operate out of
phase, reducing switching noise significantly.
The TPS62184 automatically enters Power Save
Mode to maintain high efficiency down to very light
loads. It also incorporates an Automatic Efficiency
Enhancement (AEE^TM) for the entire duty cycle
range.
The device features a Power Good signal, as well as
an adjustable soft start. The quiescent current is
typically 28 µA, it is able to run in 100% mode, and it
has no duty cycle limitation even at lowest output
voltage.
The TPS62184 is packaged in a small 24-bump, 0.5
mm pitch DSBGA package.
Device Information⁽¹⁾
PART NUMBER
PACKAGE
BODY SIZE (NOM)
TPS62184
DSBGA (24)
2.10 mm x 3.10 mm
(1) For all available packages, see the orderable addendum at
the end of the datasheet.
spacing
4 Simplified Schematic
SPACE
Efficiency vs Output Current
22µF
4 to 17 V
22µF
3.3nF
VIN1
VIN2
1µH
SW1
1µH
SW2
VO
TPS62184
EN
PG
SS/TR
FB
GND
3.3V/6A
470k
470k
2x
47µF
150k
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.