Texas Instruments 150-mA, Low-Dropout Regulator Evaluation Module TLV71318PEVM-171 TLV71318PEVM-171 Scheda Tecnica
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TLV71318PEVM-171
User's Guide
SLVU771 – September 2012
TLV713xxPEVM-171 Evaluation Module
This user’s guide describes the operational use of the TLV713xxPEVM-171 Evaluation Module (EVM) as a
reference design for engineering demonstration and evaluation of the TLV713xxP, low-dropout linear
regulator (LDO). Included in this user’s guide are setup instructions, a schematic diagram, layout, thermal
guidelines, a bill of materials, and test results.
reference design for engineering demonstration and evaluation of the TLV713xxP, low-dropout linear
regulator (LDO). Included in this user’s guide are setup instructions, a schematic diagram, layout, thermal
guidelines, a bill of materials, and test results.
1
Introduction
TI's TLV713xxPEVM-171 helps design engineers evaluate the operation and performance of the
TLV713xxP family of linear regulators for possible use in their own circuit application. This particular EVM
configuration contains a single linear regulator with low Iq, high power supply rejection ratio (PSRR) in a
small 1-mm × 1-mm DQN package. The regulator is capable of delivering up to 150 mA to the load
depending on the input-output power dissipation across the part which can be minimized because of the
low dropout voltage. The output capacitor for the TLV713xxP must be 1 µF (effective minimum) for
stability.
TLV713xxP family of linear regulators for possible use in their own circuit application. This particular EVM
configuration contains a single linear regulator with low Iq, high power supply rejection ratio (PSRR) in a
small 1-mm × 1-mm DQN package. The regulator is capable of delivering up to 150 mA to the load
depending on the input-output power dissipation across the part which can be minimized because of the
low dropout voltage. The output capacitor for the TLV713xxP must be 1 µF (effective minimum) for
stability.
2
Setup
This section describes the jumpers and connectors on the EVM as well as how to properly connect, setup,
and use the EVM.
and use the EVM.
2.1
Input/Output Connectors and Jumper Descriptions
2.1.1
J1 – VIN
Input power supply voltage connector. Twist the positive input lead and ground return lead from the input
power supply and keep them as short as possible to minimize EMI transmission. Add additional bulk
capacitance between J1 and J2 if the supply leads are greater than six inches. For example, an additional
47-µF electrolytic capacitor connecting J1 to ground improves the transient response of the TLV713xxP
while eliminating unwanted ringing on the input due to long wire connections.
power supply and keep them as short as possible to minimize EMI transmission. Add additional bulk
capacitance between J1 and J2 if the supply leads are greater than six inches. For example, an additional
47-µF electrolytic capacitor connecting J1 to ground improves the transient response of the TLV713xxP
while eliminating unwanted ringing on the input due to long wire connections.
2.1.2
J2 – GND
Return connector for the input power supply.
2.1.3
J3 – OUT
Regulated output voltage connector.
2.1.4
J4 – GND
Output ground return connector.
2.1.5
JP1 – EN
Output enable. To enable the output, connect a jumper to short the V
IN
pin 1 to the EN center pin 2. To
disable the output, connect a jumper to short EN pin 2 to GND pin 3. EN is pulled up to V
IN
through
resistor R1 when JP1 is not connected.
1
SLVU771 – September 2012
TLV713xxPEVM-171 Evaluation Module
Copyright © 2012, Texas Instruments Incorporated