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TPS57114-EP
SLVSCG0 –JULY 2014
TPS57114-EP 2.95-V to 6-V Input, 3.5-A Output, 2-MHz, Synchronous Step-Down
SWIFT™ Converter
1 Features
3 Description
The TPS57114-EP device is a full-featured 6-V,
1
•
Two 12-mΩ (Typical) MOSFETs for High
3.5-A,
synchronous
step-down
current-mode
Efficiency at 3.5-A Loads
converter with two integrated MOSFETs.
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•
200-kHz to 2-MHz Switching Frequency
The TPS57114-EP enables small designs by
integrating the MOSFETs, implementing current-
mode control to reduce external component count,
reducing inductor size by enabling up to 2-MHz
switching frequency, and minimizing the IC footprint
with a small 3-mm × 3-mm thermally-enhanced
WQFN package.
0.8-V ±1% Voltage Reference Over Temperature
(–55°C to 125°C)
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•
•
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Synchronizes to External Clock
Adjustable Slow Start and Sequencing
UV and OV Power-Good Output
Thermally Enhanced 3-mm × 3-mm 16-Pin WQFN
The TPS57114-EP provides accurate regulation for a
variety of loads with an accurate ±1% voltage
reference (VREF) over temperature.
Supports Defense, Aerospace, and Medical
Applications
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Controlled Baseline
The integrated 12-mΩ MOSFETs and 515-µA typical
supply current maximize efficiency. Entering
shutdown mode by using the enable pin reduces the
shutdown supply current to 5.5 µA.
One Assembly and Test Site
One Fabrication Site
Available in Military (–55°C to 125°C)
Temperature Range
The internal undervoltage lockout (UVLO) setting is
2.45 V, but programming the threshold with a resistor
network on the enable pin can increase it. The slow-
start pin controls the output-voltage start-up ramp. An
open-drain power-good signal indicates the output is
within 93% to 107% of its nominal voltage.
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Extended Product Life Cycle
Extended Product-Change Notification
Product Traceability
2 Applications
Device Information(1)
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Low-Voltage, High-Density Power Systems
ORDER NUMBER
PACKAGE
BODY SIZE (NOM)
Point-of-Load Regulation for High-Performance
DSPs, FPGAs, ASICs, and Microprocessors
TPS57114MRTETEP WQFN (16)
3.00 mm × 3.00 mm
(1) For all available packages, see the orderable addendum at
the end of the data sheet.
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Broadband, Networking, and Optical
Communications Infrastructure
4 Simplified Schematic
CBOOT
TPS57114-EP
Efficiency vs Output Current
VIN
VIN
BOOT
100
R
R
4
5
C
3 Vin
I
L
O
95
EN
PH
VOUT
5 Vin
90
C
O
85
R
R
1
2
PWRGD
80
75
VSENSE
SS/TR
RT/CLK
COMP
70
65
60
C
GND
ss
R
AGND
R
T
3
POWERPAD
C
1
f
= 500kHz
s
55
50
Vout = 1.8V
0
1
2
3
4
I
- Output Current - A
O
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.