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This User's Guide describes the characteristics, operation, and use of the
TPS62510EVM-168 Evaluation Module (EVM). The Texas Instruments TPS62510 is a
high efficiency step-down converter for operation from a 1.8V to 3.8V input voltage rail
capable of supplying up 1.5A. This User's Guide includes setup instructions, a
schematic diagram, a bill of materials (BOM), and PCB layout drawings for the
evaluation module for the TPS62510.
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Introduction
The Texas Instruments TPS62510EVM-168 evaluation module (EVM) helps designers evaluate the
operation and performance of the TPS62510 switching step-down converter. This high efficiency converter
is targeted for portable devices where space is critical and is ideally suited for two cell NiMHd or Alkaline
applications.
The TPS62510 EVM maximizes output power and efficiency while supplying 1.8V at 1.5A. It is designed to
operate with an input voltage between 1.8V-3.8V and has the option to adjust the output voltage by
modifying the resistive feedback divider. Refer to the TPS62510 data sheet (SLVS651) for more
information.
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Setup
This chapter describes the jumpers and connectors on the EVM as well as how to properly connect, setup,
and use the TPS62510-168.
SLVU161 - May 2006
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User's Guide
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Related Manuals for Texas Instruments PS62510EVM-168
Summary of Contents for Texas Instruments PS62510EVM-168
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Page 1: Table Of Contents
TPS62510EVM-168 Bill of Materials Introduction The Texas Instruments TPS62510EVM-168 evaluation module (EVM) helps designers evaluate the operation and performance of the TPS62510 switching step-down converter. This high efficiency converter is targeted for portable devices where space is critical and is ideally suited for two cell NiMHd or Alkaline applications. - Page 2 www.ti.com Setup Input / Output Connector Descriptions 2.1.1 J1 –VIN This is the positive input connection to the DC/DC converter. The leads to the input supply should be twisted and kept as short as possible to minimize EMI transmission. 2.1.2 J2 –...
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Page 3: Hpa168 Efficiency
www.ti.com Setup Operation The absolute maximum input voltage for the TPS62510 is 4.0V, and it is imperative that this voltage is not exceeded to ensure the IC is not damaged. The EVM is designed to operate with an input voltage between 1.8V–3.8V and an output voltage adjusted between 0.6V–VIN. -
Page 4: Hpa168 Load Regulation
www.ti.com Setup HPA168 Load Regulation 1.807 V = 3.3 V 1.805 1.803 1.801 1.799 1.797 PFM/PWM 1.795 Forced PWM 1.793 1.791 0.25 0.75 1.25 1.75 I - Output Current - A Figure 2. HPA168 Load Regulation Figure 3 shows the 1.8V output voltage when the load current is pulsed between 1500mA and 150mA. Vin = 3.3Vdc, SYNC = Vin. -
Page 5: Output Voltage
www.ti.com Setup Figure 4. Output Voltage The 1.8V output ripple voltage in PFM mode is shown in Figure 5. The image was taken with the output loaded to 120mA and the input voltage set to 3.3Vdc. (Yellow = Switchnode = 2V/DIV, Red = Output Ripple Voltage = 10mV/DIV, Green = Inductor Current = 500mA/DIV, 2us/DIV) Figure 5. -
Page 6: Board Layout
www.ti.com Board Layout Figure 6. Output Ripple Voltage Board Layout This chapter provides the TPS62510-168 board layout and illustrations. Layout Figure Figure 8, and Figure 9 show the board layout for the TPS63510-168 PWB. Figure 7. Assembly Layer TPS62510EVM-168 SLVU161 – May 2006 Submit Documentation Feedback... -
Page 7: Top Layer Routing
www.ti.com Board Layout Figure 8. Top Layer Routing Figure 9. Bottom Layer Routing SLVU161 – May 2006 TPS62510EVM-168 Submit Documentation Feedback... -
Page 8: Schematic And Bill Of Materials
PCB, 1.7 In x 1.2 In x 0.062 In HPA168 – Shunt, 100 mil, Black 929950-00 Related Documentation From Texas Instruments TPS62510 data sheet (SLVS651) If You Need Assistance Contact your local TI sales representative. TPS62510EVM-168 SLVU161 – May 2006... - Page 9 Related Documentation From Texas Instruments EVALUATION BOARD/KIT IMPORTANT NOTICE Texas Instruments (TI) provides the enclosed product(s) under the following conditions: This evaluation board/kit is intended for use for ENGINEERING DEVELOPMENT, DEMONSTRATION, OR EVALUATION PURPOSES ONLY and is not considered by TI to be a finished end-product fit for general consumer use.
- Page 10 EVM schematic located in the EVM User's Guide. When placing measurement probes near these devices during operation, please be aware that these devices may be very warm to the touch. Mailing Address: Texas Instruments, Post Office Box 655303, Dallas, Texas 75265 Copyright © 2006, Texas Instruments Incorporated TPS62510EVM-168 SLVU161 –...
- Page 11 TI as compliant with ISO/TS 16949 requirements. Buyers acknowledge and agree that, if they use any non-designated products in automotive applications, TI will not be responsible for any failure to meet such requirements. Following are URLs where you can obtain information on other Texas Instruments products and application solutions: Products...
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