TPS564201 Datasheet, PDF (1/25 Pages) Texas Instruments – 4.5-V to 17-V Input, 4-A Synchronous Step-Down Voltage Regulator in SOT-23

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TPS564201
SLVSDJ7A – MAY 2016 – REVISED MAY 2016
TPS564201 4.5-V to 17-V Input, 4-A Synchronous Step-Down Voltage Regulator in SOT-23
1 Features
•1 TPS564201 4-A Converter Integrated 50-mΩ and
22-mΩ FETs
• D-CAP2™ Mode Control with Fast Transient
Response
• Input Voltage Range: 4.5 V to 17 V
• Output Voltage Range: 0.76 V to 7 V
• Pulse Skip Mode
• 560-kHz Switching Frequency
• Low Shutdown Current Less than 5 µA
• 2.5% Feedback Voltage Accuracy (25ºC)
• Startup from Pre-Biased Output Voltage
• Cycle-by-Cycle Overcurrent Limit
• Hiccup-mode Overcurrent Protection
• Non-Latch UVP and TSD Protections
• Fixed Soft Start: 1.0 ms
2 Applications
• Digital TV Power Supply
• High Definition Blu-ray™ Disc Players
• Networking Home Terminal
• Digital Set Top Box (STB)
• Surveillance
3 Description
The TPS564201 is a simple, easy-to-use, 4-A
synchronous step-down converter in SOT-23
package.
The device is optimized to operate with minimum
external component count and also optimized to
achieve low standby current.
These switch mode power supply (SMPS) devices
employ D-CAP2 mode control providing a fast
transient response and supporting both low-
equivalent series resistance (ESR) output capacitors
such as specialty polymer and ultra-low ESR ceramic
capacitors with no external compensation
components.
The TPS564201 operates in pulse skip mode,
maintaining high efficiency during light load operation.
The TPS564201 is available in a 6-pin 1.6-mm × 2.9-
mm SOT (DDC) package, and specified from a –40°C
to 125°C junction temperature.
Device Information⁽¹⁾
PART NUMBER
PACKAGE
BODY SIZE (NOM)
TPS564201
DDC (6)
1.60 mm × 2.90 mm
(1) For all available packages, see the orderable addendum at
the end of the data sheet.
VOUT
Simplified Schematic
CBST
LO
CO
VIN
TPS564201
1
GND
6
VBST
2
SW
5
EN
3
VIN
4
VFB
CIN
EN
RFB2 ^RFB1
VOUT
Copyright © 2016, Texas Instruments Incorporated
100%
90%
80%
70%
60%
50%
40%
30%
20%
10%
0%
0.001
TPS564201 Efficiency
0.01
0.1
Output Current (A)
VOUT = 1.05 V
VOUT = 1.5 V
VOUT = 1.8 V
VOUT = 3.3 V
VOUT = 5 V
1
4
C001
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.