TPS62152-Q1_15 Datasheet, PDF (1/33 Pages) Texas Instruments – Automotive Wide Input, Fixed 3V Output Voltage, 1A Step-Down Converter

Product
Folder
Sample &
Buy
Technical
Documents
Tools &
Software
Support &
Community
TPS62152-Q1
SLVSC52B – JULY 2013 – REVISED SEPTEMBER 2015
TPS62152-Q1 Automotive Wide Input, Fixed 3-V Output Voltage,
1-A Step-Down Converter in 3 × 3-mm QFN Package
1 Features
•1 Qualified for Automotive Applications
• AEC-Q100 Qualified With the Following Results:
– Device Temperature Grade 1: –40°C to 125°C
Ambient Operating Temperature Range
– Device HBM ESD Classification Level H2
– Device CDM ESD Classification Level C4B
• DCS-Control Topology
• Input Voltage Range: 4 V to 17 V
• Up to 1-A Output Current
• Fixed Output Voltage: 3.3 V
• 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
• Available in a 3-mm × 3-mm, VQFN-16 Package
2 Applications
• Automotive Infotainment and Cluster
– Instrument Cluster
– Center Stack
– Head Unit
– Rear-Seat Entertainment
• Advanced Driver-Assistance System (ADAS)
– Surround View
– Rear-View Camera
– Front Camera
3 Description
The TPS62152-Q1 device is an easy-to-use
synchronous step-down dc-dc converter optimized for
applications with high power density and features a
fixed 3.3-V output with a current capability of up to
1 A. A high switching frequency of 2.5 MHz (typical)
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 a wide operating input voltage range of 4 V to
17 V, the device is ideally suited for systems powered
from either a Li-Ion or other batteries as well as from
12-V intermediate power rails.
The soft-start pin controls the output voltage start-up
ramp, which allows operation either as 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 device draws 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. Entering shutdown mode turns the device off,
and shutdown current consumption is less than 2 μA.
The device package is a 16-pin VQFN measuring
3-mm × 3-mm (RGT) and has an exposed thermal
pad for better thermal performance.
Device Information⁽¹⁾
PART NUMBER
PACKAGE
BODY SIZE (NOM)
TPS62152-Q1
VQFN (16)
3.00 mm × 3.00 mm
(1) For all available packages, see the orderable addendum at
the end of the datasheet.
V_IN = 4 to 17 V
C_IN
10 µF
C_SS
3 nF
Typical Application
TPS62152-Q1
PVIN
SW
L_OUT
2.2 H
AVIN
VOS
EN
PG
SS/TR
FB
DEF
AGND
FSW
PGND
V_OUT = 3.3 V at 1 A
R_PG
100 k
C_OUT
22 µF
Efficiency Vs Output Current
100
90
80
70
60
50
V_IN = 5 V
V_IN = 12 V
40
V_IN = 17 V
0
0.2
0.4
0.6
0.8
1
Output Current (A)
D001
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.