TLV62150_15 Datasheet, PDF (1/38 Pages) Texas Instruments – TLV62150x 4-V to 17-V 1-A Step-Down Converter With DCS-Control™

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TLV62150, TLV62150A
SLVSB71D – FEBRUARY 2012 – REVISED AUGUST 2015
TLV62150x 4-V to 17-V 1-A Step-Down Converter With DCS-Control™
1 Features
•1 DCS-Control™ Topology
• Input Voltage Range: 4 V to 17 V
• Up to 1-A Output Current
• Adjustable Output Voltage from 0.9 to 5 V
• Pin-Selectable Output Voltage (nominal, + 5%)
• Programmable Soft Start and Tracking
• Seamless Power Save Mode Transition
• Quiescent Current of 19 µA (Typical)
• Selectable Operating Frequency
• Power Good Output
• 100% Duty Cycle Mode
• Short Circuit Protection
• Over Temperature Protection
• For Improved Feature Set, see TPS62150
• Available in a 3-mm × 3-mm, VQFN-16 Package
2 Applications
• Standard 12-V Rail Supplies
• POL Supplies from Single or Multiple Li-Ion
Batteries
• Embedded Systems
• LDO Replacements
• Mobile PC's, Tablets, Modems, Cameras
3 Description
The TLV62150x device 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
use of the DCS-Control™ topology.
With their wide operating input voltage range of 4 V
to 17 V, the devices are ideally suited for systems
powered from either a Li-Ion or other batteries as well
as from 12 V intermediate power rails. It supports up
to 1-A continuous output current at output voltages
between 0.9 V and 5 V (with 100% duty cycle mode).
The output voltage startup ramp is controlled by the
soft-start pin, which allows operation as either a
standalone power supply or in tracking configurations.
Power sequencing is also possible by configuring the
Enable and open-drain Power Good pins.
In Power Save Mode, the devices draw quiescent
current of about 19 μA from VIN. Power Save Mode,
entered automatically and seamlessly if load is small,
maintains high efficiency over the entire load range.
In Shutdown Mode, the device is turned off and
shutdown current consumption is less than 2 μA.
The devices is packaged in a 16-pin VQFN package
measuring 3 mm × 3 mm (RGT).
Device Information⁽¹⁾
PART NUMBER
PACKAGE
BODY SIZE (NOM)
TLV62150
TLV62150A
VQFN (16)
3.00 mm × 3.00 mm
(1) For all available packages, see the orderable addendum at
the end of the data sheet.
Efficiency vs Output Current
(4 .. 17)V
10uF
3.3nF
Simplified Schematic
PVIN
SW
AVIN
VOS
EN
PG
TLV62150
SS/TR
FB
DEF
AGND
FSW
PGND
1 / 2.2 µH
100k
750k
240k
3.3V / 1A
22uF
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.