SNVA453B August   2011  – January 2022 LM10500

 

  1.   Trademarks
  2. 1 LM10500 Overview
  3. 2 Adaptive Voltage Scaling Technology
  4. 3 Features
  5. 4 Applications
  6. 5 Evaluation Kit Overview
  7. 6 Typical Application Circuit
  8. 7 Connection Guide
    1. 7.1 Default Setting and Operation Options
    2. 7.2 Terminal Descriptions
    3. 7.3 Jumper Settings
  9. 8 Operation Guide
    1. 8.1 Standalone Operation
    2. 8.2 PWI Communication Using USB2PWI Board
    3. 8.3 PWI Communication Using 9-Pin Connector J1
  10. 9 User’s GUI for LM10500 Evaluation Board
    1. 9.1 Quick Start Guide
    2. 9.2 GUI Layout and Conventions
    3. 9.3 Register Read and Register Write
  11. 10Typical Performance Characteristics
  12. 11Evaluation Board Schematic
  13. 12Evaluation Board Bill of Materials
  14. 13Evaluation Board Layout
  15. 14Revision History

7.1 Default Setting and Operation Options

The designed default condition and operating range for the LM10500 Evaluation Board are shown in the following table.

Parameter Default Setting Operation Range and Options
PVIN J7 open
Connect to External Supply = 12V		 J7 open, connect PVIN to external supply. Voltage range is between 3 V and 18 V.
J7 closed, PVIN is connected to VBAT = 3.6 V. VBAT is generated by the USB2PWI board. To protect the USB2PWI board, do not connect PVIN to an external power supply with J7 closed. Loading capability of VBAT is very limited.
AVIN = PVIN
by JP2		 On JP2, connect AVIN to PVIN. AVIN follows PVIN voltage.
On JP2, connect AVIN to AVIN_EXT. AVIN_EXT can be connected to an external supply. Voltage range is between 3 V and 18 V, regardless of PVIN voltage. Note that AVIN = 5 V provides optimal efficiency.
VOUT 1.2 V @LM10500SQ-1.0EV 0.6 V to 5 V (with resistor divider and PWI programming)
0.8 V @LM10500SQ-0.8EV
VPWI 2.5 V On JP1, connect VPWI to 2.5 V. VPWI is powered by on-board LDO.
On JP1, connect VPWI to VPWI_EXT. VPWI is powered by external supply (1.8 V - 10% to 3.3 V + 10%).
Switching Frequency 300 kHz J2 close, frequency range is from 300 kHz to 1.5 MHz, programmed by R20.
J2 open, switch node can be synchronized to an external clock. Note that R20 should also be selected to provide the same frequency as the external clock. Please refer to the LM10500 5A Step-Down Energy Management Unit w/PowerWise Adaptive Voltage Scaling data sheet for more details.
IOUT 0 A to 5 A
No. of PCB Layers 4
Max Temperature 85°C