SLVU189B february   2007  – may 2023 TPS74701 , TPS74801

 

  1.   1
  2.   Abstract
  3.   Trademarks
  4. 1Introduction
    1. 1.1 Performance Specification Summary
    2. 1.2 Modifications
  5. 2Input and Output Connector Descriptions
    1. 2.1  J1–VIN/GND
    2. 2.2  J2–GND
    3. 2.3  J3–VIN
    4. 2.4  J4–VBIAS
    5. 2.5  J5–GND
    6. 2.6  J6–VOUT
    7. 2.7  J7–GND
    8. 2.8  J8–VOUT/GND
    9. 2.9  J10–EN
    10. 2.10 J11–GND
    11. 2.11 J12-VIN/GND
    12. 2.12 J13-VOUT/GND
    13. 2.13 JP1–1 ms/Simult Versus 10 ms/Ratio
    14. 2.14 S1
    15. 2.15 TP1
    16. 2.16 TP2
    17. 2.17 TP3
    18. 2.18 TP4
  6. 3Test Setup
  7. 4Test Results
  8. 5Board Layout
  9. 6Bill of Materials and Schematic
    1. 6.1 Schematic Drawing
  10. 7Revision History

1.1 Performance Specification Summary

Table 1-1 provides a summary of the TPS74x01EVM-177 performance specifications. All specifications are provided for an ambient temperature of 25°C.

Table 1-1 Typical Performance Specification Summary
Condition Voltage Range
(V)		 Current Range
(mA)
Min Typ Max Min Typ Max
VBIAS supply TPS74801EVM-177 (HPA177-001), VIN = VBIAS, IOUT = 1.5 A 2.83(1) 5 5.5 5
TPS74701EVM-177 (HPA177-002), VIN = VBIAS, IOUT = 0.5 A 2.7(1) 5 5.5 5
VIN supply TPS74801EVM-177 (HPA177-001), VBIAS – VOUT ≥ 3.25 V, IOUT = 1.5 A 1.395(1) 5.5(2) 1500
TPS74701EVM-177 (HPA177-002), VBIAS – VOUT ≥ 1.62 V, IOUT = 0.5 A 1.35(1) 5.5(2) 500
VOUT TPS74801EVM-177 (HPA177-001) 1.17(3) 1.20 1.23(3) 1500(2)
VOUT TPS74701EVM-177 (HPA177-002) 1.17(3) 1.20 1.23(3) 500(2)
(1) This voltage is the minimum voltage to provide the maximum output current in the table assuming the typical VBIAS voltage is applied. Lower output currents are achievable with lower VIN and VBIAS voltages. See the data sheet for VIN to VOUT and VBIAS to VOUT dropout data.
(2) Linear regulator power dissipation is computed as PD = (VIN – VOUT) × IOUT. As specified in the data sheet, the regulator package has a finite power dissipation rating depending on the ambient temperature, board type, and airflow. Using any VIN or VOUT voltages other than the typical voltages recommended in the table or using the EVM in an environment with an ambient temperature higher than 25°C significantly reduces the maximum allowed output current. See the data sheet for the regulator package thermal resistance data, and see the Digital Designer's Guide to Linear Voltage Regulators and Thermal Management application note for a full explanation.
(3) The EVM uses ±1% feedback resistors. Therefore, the EVM output tolerance is the ±2% internal reference tolerance plus
2 × (1 – VREF/VOUT) × TOLFBRES = 2 × (1– 0.8 V/1.2 V) × ±1% = 0.67% or ±2.67%. Tighter tolerance feedback resistors must be used for tighter output tolerance.