Summary of Contents for Texas Instruments TPS79301EVM
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TPS79301EVM TPS79328EVM LDO Linear Regulator Evaluation Module User’s Guide June 2002 Power Management Products Low Power SLVU060A...
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IMPORTANT NOTICE Texas Instruments Incorporated and its subsidiaries (TI) reserve the right to make corrections, modifications, enhancements, improvements, and other changes to its products and services at any time and to discontinue any product or service without notice. Customers should obtain the latest relevant information before placing orders and should verify that such information is current and complete.
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EVM IMPORTANT NOTICE Texas Instruments (TI) provides the enclosed product(s) under the following conditions: This evaluation kit being sold by TI is intended for use for ENGINEERING DEVELOPMENT OR EVALUATION PURPOSES ONLY and is not considered by TI to be fit for commercial use. As such, the goods being provided may not be complete in terms of required design-, marketing-, and/or manufacturing-related protective considerations, including product safety measures typically found in the end product incorporating the goods.
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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 2002, Texas Instruments Incorporated...
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SOT–23 packaged linear regulators with the same pinout. How to Use This Manual Chapter 1—Introduction Chapter 2—EVM Test Setup Chapter 3—Test Results Related Documentation From Texas Instruments TPS793xx data sheet (literature number SLVS348) Read This First...
Chapter 1 Introduction This user’s guide describes the TPS793xxEVM LDO regulator evaluation module (SLVP191). Each EVM package contains one SLVP191 test board, with either a TPS79301DBV linear regulator or a TPS79328DBV linear regulator, as well as supporting passive components. Topic Page TPS793xx Family of LDO Regulators .
TPS793xx Family of LDO Regulators 1.1 TPS793xx Family of LDO Regulators Like all LDO linear regulators, the TPS793xx family of LDO regulators use a series pass element and feedback network, including an error amplifier and voltage reference, to provide a regulated output voltage from a slightly higher, possibly varying input voltage.
Schematic 1.3 Schematic Figures 1–1 and 1–2 show the SLVP191 schematic diagram that is used in the TPS793xxEVM. Figure 1–1. 79301 Board Schematic TPS79301DBV VOUT 6.8 Ω 100 pF BYPASS 4.7µ F 10 Ω 30.1 Ω 0.0047µ F 1 µ F Not Used Figure 1–2.
Bill of Materials 1.4 Bill of Materials Table 1–2 lists materials required for the SLVP191 Table 1–1. SLVP191 Bill of Materials 79301 79328 Description Size Part Number Capacitor, ceramic, 1.0 µF, 6.3 V, Murata GRM39X7R105K6.3 Capacitor, ceramic, 0.0047 µF, . . . Murata GRM39X7R472K25 25 V, X7R, 10%...
Board Layout 1.5 Board Layout Figures 1–3 and 1–4 show the board layout for the TPS793xxEVM. Figure 1–3. Top Layer Figure 1–4. Bottom Layer Introduction...
Chapter 2 EVM Test Setup This chapter provides recommended test equipment and procedures for per- forming evaluations using the TPS793xxEVM. Figure 2–1 shows the test setup. Figure 2–1. Recommended TPS793xxEVM Test Setup EVM Test Setup...
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The settings for the test equipment shown in Figure 2–1 are described below: Power amplifier capable of dv/dt = 1 V/µs and with at least 1-A current limit connected to IN (J2) and GND (J3). Function generator capable of generating both a 10-kHz, 1-V , sine wave and a 1-V square wave connected to the input of the power amplifier.
Chapter 3 Test Results This chapter provides laboratory test results of the TPS793xxEVM. Figure 3–1 shows the line transient response of the TPS79328DBV device. The input voltage is set to 3.8 V and then a 1-V step is applied. The output load is 100 mA.
Figure 3–2 shows the ripple rejection capabilities of the TPS79328DBV device. The input voltage is set to 5 V and a 1-V sine wave is added to the input dc voltage. The output load is 100 mA. Channel 1 is V .