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EVM User's Guide: TPSM82916EVM
TPSM82916 Step-Down Converter Evaluation Module
Description
The TPSM82916 evaluation module (EVM) (SR073)
facilitates the evaluation of the TPSM82916 and
TPSM82914. The SR073 uses the 6A TPSM82916
to output a 1.2V output voltage from input voltages
between 3V and 17V. Due to extremely low noise,
the TPSM82916 is a high-efficiency alternative to
low-dropout (LDO) linear regulators in noise-sensitive
circuits.
Features
•
Low output 1/f noise < 20μV
(100kHz)
•
Low output voltage ripple < 10μV
bead
•
High PSRR of > 65dB (up to 100kHz)
•
2.2MHz, 1.4MHz, or 1MHz fixed frequency peak
current mode control
•
Synchronizable with external clock (optional)
SLVUCW8 – OCTOBER 2024
Submit Document Feedback
(100Hz to
RMS
after ferrite
RMS
TPSM82916EVM
Copyright © 2024 Texas Instruments Incorporated
•
Integrated loop compensation supports ferrite
bead for second stage L-C filter with 30dB
attenuation
•
Spread spectrum modulation (optional)
•
3.0V to 17V input voltage range
•
0.8V to 5.5V output voltage range
•
Output voltage accuracy of ±1% over temperature
•
Precise enable input allows user-defined
undervoltage lockout and exact sequencing
•
Adjustable soft start
•
Power-good output
•
Output discharge (optional)
•
Fully assembled, tested, and proven PCB layout
Applications
•
Wireless infrastructure
•
Test and measurement
•
Aerospace and defense
•
Medical
TPSM82916 Step-Down Converter Evaluation Module
Description
(radar, avionics)
1
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Related Manuals for Texas Instruments TPSM82916
Summary of Contents for Texas Instruments TPSM82916
- Page 1 Integrated loop compensation supports ferrite Description bead for second stage L-C filter with 30dB The TPSM82916 evaluation module (EVM) (SR073) attenuation facilitates the evaluation of the TPSM82916 and • Spread spectrum modulation (optional) TPSM82914. The SR073 uses the 6A TPSM82916 •...
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Page 2: Kit Contents
1 Evaluation Module Overview 1.1 Introduction The TPSM82916 is a low noise, low ripple, synchronous step-down converter in a small 4.1mm × 4.7mm QFN package. This user's guide describes the characteristics, operation, and the use of the TPSM82916EVM evaluation module (EVM). This user's guide includes EVM specifications, connectors, schematics, bill of materials, and the board layout of the evaluation module (EVM) for the TPSM82916. - Page 3 The communication interface is not isolated on the EVM. Be sure no ground potential exists between the computer and the EVM. Also be aware that the computer is referenced to the battery-potential of the EVM. SLVUCW8 – OCTOBER 2024 TPSM82916 Step-Down Converter Evaluation Module Submit Document Feedback Copyright © 2024 Texas Instruments Incorporated...
- Page 4 . Alternatively, the jumper can be removed and a different voltage can be supplied on pin 2 to pull up the PG pin to a different level. This externally applied voltage must remain below 18V. TPSM82916 Step-Down Converter Evaluation Module SLVUCW8 – OCTOBER 2024 Submit Document Feedback...
- Page 5 3 Implementation Results 3.1 Test Results The TPSM82916EVM was used to take all the data in the TPSM82916 data sheet. See the device data sheet for the performance of this EVM. The thermal performance of the EVM is shown in Figure 3-1.
- Page 6 3.2 Ripple Measurement Setup The extremely low noise and low ripple levels of the TPSM82916 necessitate a low-noise test setup for accurately measuring the output voltage ripple. Use the SMA connectors, J1 and J2, to measure the output voltage ripple, before and after the second LC filter. Do not use a normal 10x oscilloscope probe with a high-impedance termination to the oscilloscope.
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Page 7: Performance Specification
3.3.7 Single LC Filter Operation For applications which do not require the lowest output voltage ripple, the TPSM82916 can be operated without the second LC filter. To operate with a single LC filter, replace FB1 with a 0Ω resistor. The total output capacitance must remain within the recommended range in the TPS6291x 3V to 17V, 4.5A/6A/8A, Low Noise... - Page 8 0.47µF 4.87k PVIN 1.00M Net-Tie EN/SYNC 1.00M VOUT 5002 5002 PVIN 2.2 MHz S-CONF 1 MHz 10.0k 6.04k Figure 4-1. TPSM82916EVM Schematic TPSM82916 Step-Down Converter Evaluation Module SLVUCW8 – OCTOBER 2024 Submit Document Feedback Copyright © 2024 Texas Instruments Incorporated...
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Page 9: Pcb Layout
Figure 4-2. Top Assembly Figure 4-3. Top Layer Figure 4-4. Internal Layer 1 Figure 4-5. Internal Layer 2 Figure 4-6. Bottom Layer (Mirrored) SLVUCW8 – OCTOBER 2024 TPSM82916 Step-Down Converter Evaluation Module Submit Document Feedback Copyright © 2024 Texas Instruments Incorporated... - Page 10 Texas Instruments (200µV ) buck module The TPSM82916EVM can be populated with TPSM82916 (U1) devices that do not contain the correct top-side markings on the top of the device. These devices are still fully-tested TPSM82916 devices. TPSM82916 Step-Down Converter Evaluation Module SLVUCW8 –...
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Page 11: Additional Information
Additional Information 5 Additional Information 5.1 Trademarks All trademarks are the property of their respective owners. SLVUCW8 – OCTOBER 2024 TPSM82916 Step-Down Converter Evaluation Module Submit Document Feedback Copyright © 2024 Texas Instruments Incorporated... - Page 12 STANDARD TERMS FOR EVALUATION MODULES Delivery: TI delivers TI evaluation boards, kits, or modules, including any accompanying demonstration software, components, and/or documentation which may be provided together or separately (collectively, an “EVM” or “EVMs”) to the User (“User”) in accordance with the terms set forth herein.
- Page 13 www.ti.com Regulatory Notices: 3.1 United States 3.1.1 Notice applicable to EVMs not FCC-Approved: FCC NOTICE: This kit is designed to allow product developers to evaluate electronic components, circuitry, or software associated with the kit to determine whether to incorporate such items in a finished product and software developers to write software applications for use with the end product.
- Page 14 www.ti.com Concernant les EVMs avec antennes détachables Conformément à la réglementation d'Industrie Canada, le présent émetteur radio peut fonctionner avec une antenne d'un type et d'un gain maximal (ou inférieur) approuvé pour l'émetteur par Industrie Canada. Dans le but de réduire les risques de brouillage radioélectrique à...
- Page 15 www.ti.com EVM Use Restrictions and Warnings: 4.1 EVMS ARE NOT FOR USE IN FUNCTIONAL SAFETY AND/OR SAFETY CRITICAL EVALUATIONS, INCLUDING BUT NOT LIMITED TO EVALUATIONS OF LIFE SUPPORT APPLICATIONS. 4.2 User must read and apply the user guide and other available documentation provided by TI regarding the EVM prior to handling or using the EVM, including without limitation any warning or restriction notices.
- Page 16 Notwithstanding the foregoing, any judgment may be enforced in any United States or foreign court, and TI may seek injunctive relief in any United States or foreign court. Mailing Address: Texas Instruments, Post Office Box 655303, Dallas, Texas 75265 Copyright © 2023, Texas Instruments Incorporated...
- Page 17 TI products. TI’s provision of these resources does not expand or otherwise alter TI’s applicable warranties or warranty disclaimers for TI products. TI objects to and rejects any additional or different terms you may have proposed. IMPORTANT NOTICE Mailing Address: Texas Instruments, Post Office Box 655303, Dallas, Texas 75265 Copyright © 2024, Texas Instruments Incorporated...
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