4.5V to 28V Input, Dual 2A Output, 600kHz Step-Down Converter with Internal Compensation
Product details
Parameters
Package | Pins | Size
Features
- 4.5-V to 28-V Input Range
- Output Voltage Range 0.8 V to 90% of Input Voltage
- Output Current Up to 2 A
- Two Fixed Switching Frequency Versions:
- TPS54283: 300 kHz
- TPS54286: 600 kHz
- Two Selectable Levels of Overcurrent Protection (Output 2)
- 0.8-V 1.5% Voltage Reference
- 2.1-ms Internal Soft Start
- Dual PWM Outputs 180° Out-of-Phase
- Ratiometric or Sequential Startup Modes Selectable by a Single Pin
- 100-m
Internal High-Side MOSFETs - Current Mode Control
- Internal Compensation (See Page 16)
- Pulse-by-Pulse Overcurrent Protection
- Thermal Shutdown Protection at 148°C
- 14-Pin PowerPAD™ HTSSOP package
- APPLICATIONS
- Set Top Box
- Digital TV
- Power for DSP
- Consumer Electronics
PowerPAD Is a trademark of Texas Instruments.
All other trademarks are the property of their respective owners.
Description
TPS54283 and TPS54286 are dual output non-synchronous buck converters capable of supporting 2-A output applications that operate from a 4.5-V to 28-V input supply voltage, and require output voltages between 0.8 V and 90% of the input voltage.
With internally-determined operating frequency, soft start time, and control loop compensation, these converters provide many features with a minimum of external components. Channel 1 overcurrent protection is set at 3 A, while Channel 2 overcurrent protection level is selected by connecting a pin to ground, to BP, or left floating. The setting levels are used to allow for scaling of external components for applications not needing the full load capability of both outputs.
The outputs may be enabled independently, or may be configured to allow either ratiometric or sequential startup sequencing. Additionally, the two outputs may also be powered from different sources.
Technical documentation
= Top documentation for this product selected by TI
| Type | Title | Date | |
|---|---|---|---|
| * | Datasheet | 2-A DUAL NON-SYNCHRONOUS CONVERTER WITH INTEGRATED HIGH SIDE MOSFET datasheet (Rev. C) | Oct. 16, 2007 |
| Technical articles | Minimize the impact of the MLCC shortage on your power application | Mar. 29, 2019 | |
| Selection guide | Power Management Guide 2018 (Rev. R) | Jun. 25, 2018 | |
| User guide | Using the TPS54383EVM (Rev. C) | Jan. 22, 2008 | |
| User guide | Using the TPS54386EVM | Jul. 19, 2007 |
Design & development
For additional terms or required resources, click any title below to view the detail page where available.Hardware development
Description
The TPS54386EVM evaluation module (EVM) is a dual non-synchronous buck converter providing fixed 5.0-V and 3.3-V output at up to 2 A each from a 12-V input bus. The EVM is designed to start up from a single supply, so no additional bias voltage is required for start-up. The module uses the TPS54386 (...)
Features
- 12-V (+10% / -20%) Input Range
- 5.0-V and 3.3-V Fixed Output Voltage, Adjustable with Resistor Change
- 2-ADC Steady State Output Current (3 A Peak)
- 600-kHz Switching Frequency (fixed by TPS54386)
- Internal Switching MOSFET and External Rectifier Diode
- Double Sided 2 Active Layer PCB (all components on top (...)
Design tools & simulation
SLIM110A.ZIP (134 KB) - PSpice Model
SLUM039.ZIP (165 KB) - TINA-TI Reference Design
SLUM040.ZIP (165 KB) - TINA-TI Reference Design
SLUM041.ZIP (4 KB) - TINA-TI Spice Model
SLUM075.TSC (2104 KB) - TINA-TI Reference Design
SLUM076.TSM (25 KB) - TINA-TI Spice Model
SLUM091A.ZIP (115 KB) - PSpice Model
PSPICE-FOR-TI — PSpice® for TI is a design and simulation environment that helps evaluate functionality of analog circuits. This full-featured, design and simulation suite uses an analog analysis engine from Cadence®. Available at no cost, PSpice for TI includes one of the largest model libraries in the (...)
Features
- Leverages Cadence PSpice Technology
- Preinstalled library with a suite of digital models to enable worst-case timing analysis
- Dynamic updates ensure you have access to most current device models
- Optimized for simulation speed without loss of accuracy
- Supports simultaneous analysis of multiple products
- (...)
Reference designs
TIDA-00195 — The TIDA-00195 reference design consists of a 22kW power stage with TI’s new reinforced isolated IGBT gate driver ISO5852S intended for motor control in various applications. This design allows performance evaluation of the ISO5852S in 3-phase inverter incorporating 1200V rated IGBT modules of (...)
Design files
-
download TIDA-00195 Assembly Drawing.pdf (251KB) -
download TIDA-00195 PCB.pdf (779KB) -
download TIDA-00195 CAD Files.zip (6110KB) -
download TIDA-00195 Gerber.zip (433KB) -
download TIDA-00195 BOM (Rev. A).pdf (68KB)
PMP3022 — At the heart of this design is the TPS54286, which is a dual output non-synchronous buck converter capable of supporting 2-A output applications that operate from a 4.5-V to 28-V input supply voltage, and require output voltages between 0.8 V and 90% of the input voltage.
Design files
-
download PMP3022 BOM.pdf (17KB)
CAD/CAE symbols
| Package | Pins | Download |
|---|---|---|
| HTSSOP (PWP) | 14 | View options |
Ordering & quality
Information included:
- RoHS
- REACH
- Device marking
- Lead finish/Ball material
- MSL rating/Peak reflow
- MTBF/FIT estimates
- Material content
- Qualification summary
- Ongoing reliability monitoring
Recommended products may have parameters, evaluation modules or reference designs related to this TI product.
Support & training
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