TPS62150_16 Datasheet, PDF (1/43 Pages) Texas Instruments – 3-V to 17-V, 1-A Step-Down Converter in 3-mm × 3-mm QFN Package

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TPS62150, TPS62150A, TPS62151, TPS62152, TPS62153
SLVSAL5D – NOVEMBER 2011 – REVISED SEPTEMBER 2016
TPS6215x 3-V to 17-V, 1-A Step-Down Converter in 3-mm × 3-mm QFN Package
1 Features
•1 DCS-Control™ Topology
• Input Voltage Range: 3 V to 17 V
• Up to 1-A Output Current
• Adjustable Output Voltage From 0.9 V to 6 V
• Pin-Selectable Output Voltage (nominal, + 5%)
• Programmable Soft Start and Tracking
• Seamless Power-Save Mode Transition
• Quiescent Current of 17 µA (typ.)
• Selectable Operating Frequency
• Power-Good Output
• 100% Duty-Cycle Mode
• Short-Circuit Protection
• Overtemperature Protection
• Pin to Pin Compatible with TPS62130 and
TPS62140
• Available in a 3-mm × 3-mm, VQFN-16 Package
2 Applications
• Standard 12-V Rail Supplies
• POL Supply From Single or Multiple Li-Ion Battery
• Solid-State Disk Drives
• Embedded Systems
• LDO Replacement
• Mobile PCs, Tablets, Modems, Cameras
• Server, Microserver
• Data Terminal, Point of Sales (ePOS)
3 Description
The TPS6215x family is an easy-to-use synchronous
step down dc-dc converter optimized for applications
with high power density. A high switching frequency
of typically 2.5 MHz allows the use of small inductors
and provides fast transient response as well as high
output-voltage accuracy by the use of DCS-Control
topology.
With their wide operating input-voltage range of 3 V
to 17 V, the devices are ideally suited for systems
powered from either Li-Ion or other batteries as well
as from 12-V intermediate power rails. The devices
support up to 1-A continuous output current at output
voltages between 0.9 V and 6 V (in 100% duty-cycle
mode). The soft-start pin controls the output-voltage
start-up ramp, which allows operation as either a
standalone power supply or in tracking configurations.
Power sequencing is also possible by configuring the
enable (EN) and open-drain power-good (PG) pins.
In power-save mode, the devices draw quiescent
current of about 17 μA from VIN. Power-save-mode,
entered automatically and seamlessly if the load is
small, maintains high efficiency over the entire load
range. In shutdown mode, the device turns off and
current consumption is less than 2 μA.
The device, available in adjustable- and fixed-output-
voltage versions, comes in a 16-pin VQFN package
measuring 3 × 3 mm (RGT).
Device Information⁽¹⁾
PART NUMBER
PACKAGE
BODY SIZE (NOM)
TPS6215X
VQFN (16)
3.00 mm × 3.00 mm
(1) For all available packages, see the orderable addendum at
the end of the data sheet.
space
Typical Application Schematic
space
(3 .. 17)V
10mF
3.3nF
PVIN
SW
AVIN
VOS
EN
PG
TPS62151
SS/TR
FB
DEF
AGND
FSW
PGND
2.2mH
1.8V / 1A
100k
22mF
Copyright © 2016, Texas Instruments Incorporated
Efficiency vs Output Current
100
90
80
70
60
50
40
0.0
VIN=5V
VIN=12V
VIN=17V
VOUT=3.3V
fsw=1.25MHz
0.2
0.4
0.6
0.8
Output Current (A)
1.0
G001
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.