TPS622314-Q1 Converter Datasheet

TPS622314-Q1 Datasheet, PDF, Equivalent


Part Number

TPS622314-Q1

Description

3-MHz Ultra-Small Step-Down Converter

Manufacture

etcTI

Total Page 27 Pages
Datasheet
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TPS622314-Q1
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TPS62231-Q1, TPS622314-Q1
SLVSB63A – DECEMBER 2011 – REVISED MARCH 2016
TPS62231x-Q1 3-MHz Ultra-Small Step-Down Converter in 1 × 1.5 SON Package
1 Features
1 Qualified for Automotive Applications
• Up to 3.8-MHz Switch Frequency
• Up to 94% Efficiency
• Output Peak Current up to 500 mA
• Excellent AC and Transient Load Regulation
• High PSRR (up to 90 dB)
• Small External Output-Filter Components 1 μH
and 4.7 μF
• VIN range from 2.05 V to 6 V
• Optimized Power Save Mode For Low Output-
Ripple Voltage
• Forced PWM Mode Operation
• Typical 22-μA Quiescent Current
• 100% Duty Cycle for Lowest Dropout
• Small 1 × 1.5 × 0.6-mm3 SON Package
• 12-mm2 Minimum Solution Size
• Supports 0.6-mm Maximum Solution Height
• Soft Start With 100-μs (Typical) Start-Up Time
2 Applications
• Advanced Driver-Assistance System (ADAS)
– Front Camera, Rear View Camera
– Surround View
– Blind-Spot Monitoring
• Automotive Telematics, eCall, and Tolling
• Space-Optimized Automotive and Industrial Power
Systems
3 Description
The TPS6223x-Q1 device family is a high-frequency,
synchronous step-down DC-DC converter ideal for
space-optimized automotive and industrial
applications. The device supports up to 500-mA
output current and allows the use of tiny and low-cost
chip inductors and capacitors.
With a wide input-voltage range of 2.05 V to 6 V, the
device can be powered by a preregulated voltage rail
or Li-Ion batteries with extended voltage range. Two
different fixed-output voltage versions are available at
1.5 V and 1.8 V.
The TPS6223x-Q1 series features switch frequency
up to 3.8 MHz. At medium to heavy loads, the
converter operates in PWM mode and automatically
enters Power Save Mode operation at light load
currents to maintain high efficiency over the entire
load current range.
Because of its excellent PSRR and AC load
regulation performance, the device is also suitable to
replace linear regulators to obtain better power
conversion efficiency.
The Power Save Mode in TPS6223x-Q1 reduces the
quiescent current consumption down to 22 μA during
light load operation. It is optimized to achieve very
low output voltage ripple even with small external
component and features excellent AC load regulation.
For noise-sensitive applications, the device can be
forced to PWM Mode operation over the entire load
range by pulling the MODE pin high. In the shutdown
mode, the current consumption is reduced to less
than 1 μA. The TPS6223x-Q1 is available in a 1-mm
× 1.5-mm2 6-pin SON package.
Device Information(1)
PART NUMBER
OUTPUT
VOLTAGE
FREQUENCY
TPS62231-Q1
1.8 V
3 MHz
TPS622314-Q1
1.5 V
3 MHz
(1) For all available packages, see the orderable addendum at
the end of the data sheet.
Typical Application Schematic
VIN
2.05 V to 6 V
TPS62231-Q1
L
1 µH or 2.2 µH
VIN SW
CIN
2.2 µF
EN
MODE
FB
GND
COUT
4.7 µF
VOUT
1.8 V
Small PCB Layout Size
L1
V
IN
Total area
is less than
12mm²
GND
C2
V
OUT
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.

TPS622314-Q1
TPS62231-Q1, TPS622314-Q1
SLVSB63A – DECEMBER 2011 – REVISED MARCH 2016
www.ti.com
Table of Contents
1 Features .................................................................. 1
2 Applications ........................................................... 1
3 Description ............................................................. 1
4 Revision History..................................................... 2
5 pPin Configuration and Functions....................... 3
6 Specifications......................................................... 3
6.1 Absolute Maximum Ratings ...................................... 3
6.2 ESD Ratings.............................................................. 4
6.3 Recommended Operating Conditions....................... 4
6.4 Thermal Information .................................................. 4
6.5 Electrical Characteristics........................................... 5
6.6 Typical Characteristics .............................................. 6
7 Detailed Description .............................................. 7
7.1 Overview ................................................................... 7
7.2 Functional Block Diagram ......................................... 7
7.3 Feature Description................................................... 8
7.4 Device Functional Modes.......................................... 8
8 Application and Implementation ........................ 10
8.1 Application Information............................................ 10
8.2 Typical Application .................................................. 10
9 Power Supply Recommendations...................... 16
10 Layout................................................................... 16
10.1 Layout Guidelines ................................................. 16
10.2 Layout Example .................................................... 16
11 Device and Documentation Support ................. 17
11.1 Device Support...................................................... 17
11.2 Documentation Support ........................................ 17
11.3 Related Links ........................................................ 17
11.4 Community Resource............................................ 17
11.5 Trademarks ........................................................... 17
11.6 Electrostatic Discharge Caution ............................ 17
11.7 Glossary ................................................................ 17
12 Mechanical, Packaging, and Orderable
Information ........................................................... 18
4 Revision History
NOTE: Page numbers for previous revisions may differ from page numbers in the current version.
Changes from Original (December 2011) to Revision A
Page
• Added Pin Configuration and Functions section, ESD Ratings table, Thermal Information table, Feature Description
section, Device Functional Modes, Application and Implementation section, Power Supply Recommendations
section, Layout section, Device and Documentation Support section, and Mechanical, Packaging, and Orderable
Information section ................................................................................................................................................................. 1
• Changed the Applications list ................................................................................................................................................ 1
• Deleted the Ordering Information table ................................................................................................................................. 1
• Deleted references to devices and voltage options that are not available as automotive grade ........................................... 1
• Added minimum and maximum recommended values for output inductance and output capacitance in the
Recommended Operating Conditions table for clarity............................................................................................................ 4
• Deleted the Dissipation Ratings table and added a more detailed Thermal Information table .............................................. 4
• Deleted the Parameter Measurement Information section..................................................................................................... 7
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Copyright © 2011–2016, Texas Instruments Incorporated
Product Folder Links: TPS62231-Q1 TPS622314-Q1


Features Product Folder Sample & Buy Technical Documents Tools & Software Support & Community Reference Design TPS62231-Q 1, TPS622314-Q1 SLVSB63A – DECEMBER 2 011 – REVISED MARCH 2016 TPS62231x-Q1 3-MHz Ultra-Small Step-Down Converter in 1 × 1.5 SON Package 1 Features • 1 Qualified for Automotive Applications • Up to 3.8-MHz Switch Frequency • Up to 94% Efficiency • Output Peak C urrent up to 500 mA • Excellent AC an d Transient Load Regulation • High PS RR (up to 90 dB) • Small External Out put-Filter Components 1 μH and 4.7 μF • VIN range from 2.05 V to 6 V • O ptimized Power Save Mode For Low Output - Ripple Voltage • Forced PWM Mode Op eration • Typical 22-μA Quiescent Cu rrent • 100% Duty Cycle for Lowest Dr opout • Small 1 × 1.5 × 0.6-mm3 SON Package • 12-mm2 Minimum Solution Si ze • Supports 0.6-mm Maximum Solution Height • Soft Start With 100-μs (Ty pical) Start-Up Time 2 Applications • Advanced Driver-Assistance System (ADAS) – Front Camera, Rear View Camera – Surround View – Blind-Spot Moni.
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