Texas Instruments TLV62150EVM-505 Evaluation Module TLV62150EVM-505 TLV62150EVM-505 Datenbogen
Produktcode
TLV62150EVM-505
Introduction
24
TLV621x0EVM-505 Schematic
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List of Tables
1
Performance Specification Summary
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2
TLV621x0EVM-505 Bill of Materials
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1
Introduction
The TLV62130 is a 3-A, synchronous, step-down converter in a 3×3-mm, 16-pin QFN package.
The TLV62150 is a 1-A, synchronous, step-down converter in a 3×3-mm, 16-pin QFN package.
1.1
Background
The TLV62130EVM-505 (HPA505-004) uses the TLV62130A and is set to a 3.3-V output. The EVM
operates with full-rated performance with an input voltage between 4 V and 17 V.
operates with full-rated performance with an input voltage between 4 V and 17 V.
The TLV62150EVM-505 (HPA505-005) uses the TLV62150A and is set to a 3.3-V output. The EVM
operates with full-rated performance with an input voltage between 4 V and 17 V.
operates with full-rated performance with an input voltage between 4 V and 17 V.
1.2
Performance Specification
provides a summary of the TLV621x0EVM-505 performance specifications. All specifications are
given for an ambient temperature of 25°C.
Table 1. Performance Specification Summary
Specification
Test Conditions
Min
Typ
Max
Unit
Input Voltage
4
17
V
Output Voltage
PWM Mode of Operation
3.244
3.327
3.410
V
Output Current
TLV62130EVM-505
0
3000
mA
TLV62150EVM-505
0
1000
mA
Peak Efficiency
TLV62130EVM-505, FSW = LOW (high frequency)
93.2%
Peak Efficiency
TLV62150EVM-505, FSW = HIGH (low frequency)
95.0%
Soft-Start Time
1.65
ms
1.3
Modifications
The printed-circuit board (PCB) for this EVM is designed to accommodate various modifications that affect
the performance of the IC. Additional input and output capacitors can be added, the soft-start time can be
changed, and the loop response of the IC can be measured.
the performance of the IC. Additional input and output capacitors can be added, the soft-start time can be
changed, and the loop response of the IC can be measured.
1.3.1
Input and Output Capacitors
C2 is provided for an additional input capacitor. This capacitor is not required for proper operation but can
be used to reduce the input voltage ripple.
be used to reduce the input voltage ripple.
C7 is provided for an input capacitor on the AVIN pin. This capacitor is required and populated on the
TLV62130EVM-505. It may be added on the other EVM version but is not required.
TLV62130EVM-505. It may be added on the other EVM version but is not required.
C4 is provided for an additional output capacitor. This capacitor is not required for proper operation but
can be used to reduce the output voltage ripple and to improve the load transient response. The total
output capacitance must remain within the recommended range in the data sheet for proper operation.
can be used to reduce the output voltage ripple and to improve the load transient response. The total
output capacitance must remain within the recommended range in the data sheet for proper operation.
1.3.2
Soft-Start Time
C5 controls the soft-start time of the output voltage on the TLV621x0EVM-505. It can be changed for a
shorter or slower ramp up of V
shorter or slower ramp up of V
OUT
. Note that as the value of C5 is decreased, the inrush current increases.
2
TLV62130EVM-505 and TLV62150EVM-505 Evaluation Modules
SLAU416A – January 2012 – Revised July 2013
Copyright © 2012–2013, Texas Instruments Incorporated