Texas Instruments Evaluation Module for 2.25MHz Step-Down Converter with Dual LDOs & SVS TPS650061EVM-584 TPS650061EVM-584 Datenbogen
Produktcode
TPS650061EVM-584
TPS650061 Typical Performance Data and Characteristic Curves
www.ti.com
4.9
JP3 –ENDCDC
Placing a shorting bar between ENDCDC and ON ties the EN pin of the DCDC converter to VIN, thereby
enabling the DCDC converter. Placing a shorting bar between ENDCDC and OFF ties the EN pin of the
DCDC converter to GND, thereby disabling the DCDC converter.
enabling the DCDC converter. Placing a shorting bar between ENDCDC and OFF ties the EN pin of the
DCDC converter to GND, thereby disabling the DCDC converter.
4.10 JP4 –ENLDO1
Placing a shorting bar between ENLDO1 and ON ties the EN pin of LDO1 to VIN, thereby enabling LDO1.
Placing a shorting bar between ENLDO1 and OFF ties the EN pin of LDO1 to GND, thereby disabling
LDO1.
Placing a shorting bar between ENLDO1 and OFF ties the EN pin of LDO1 to GND, thereby disabling
LDO1.
4.11 JP5 – ENLDO2
Placing a shorting bar between ENLDO2 and ON ties the EN pin of LDO2 to VIN, thereby enabling LDO2.
Placing a shorting bar between ENLDO2 and OFF ties the EN pin of LDO2 to GND, thereby disabling
LDO2.
Placing a shorting bar between ENLDO2 and OFF ties the EN pin of LDO2 to GND, thereby disabling
LDO2.
4.12 JP6 –MODE
JP6 selects the forced PWM or Power Save Mode (PSM) operation for the DCDC converter. Placing a
shorting bar between MODE and PWM ties the MODE pin of TPS650061 to VIN, thereby selecting forced
PWM operating mode for the DCDC converter. Placing a shorting bar between MODE and PFM ties the
MODE pin of TPS650061 to GND, thereby selecting Power Save Mode operating mode for the DCDC
converter at light-load conditions. If Power Save Mode is selected the DCDC converter will automatically
switch to PWM mode at heavier load conditions.
shorting bar between MODE and PWM ties the MODE pin of TPS650061 to VIN, thereby selecting forced
PWM operating mode for the DCDC converter. Placing a shorting bar between MODE and PFM ties the
MODE pin of TPS650061 to GND, thereby selecting Power Save Mode operating mode for the DCDC
converter at light-load conditions. If Power Save Mode is selected the DCDC converter will automatically
switch to PWM mode at heavier load conditions.
4.13 JP7 – MRPU
JP7 selects the pull-up voltage for the Manual Reset input MRPU of the TPS650061. Placing a shorting
bar between VIN and MRPU selects VIN as pull-up voltage. Any other voltage source can be used, by
removing the shorting bar and connecting a power supply between MRPU (positive connection) and GND
(negative connection). In the default setup VIN is used as pull-up voltage.
bar between VIN and MRPU selects VIN as pull-up voltage. Any other voltage source can be used, by
removing the shorting bar and connecting a power supply between MRPU (positive connection) and GND
(negative connection). In the default setup VIN is used as pull-up voltage.
4.14 JP8 – VPU
JP8 selects the pull-up voltage used for the PG output.
Placing a shorting bar between VPU and VIN select VIN as pull-up voltage. Any other pull-up voltage can
be used by removing the shorting bar and connecting a power supply between VPU and GND.
be used by removing the shorting bar and connecting a power supply between VPU and GND.
4.15 JP9 – RSTSNS_IN
JP9 selects the voltage rail that is monitored by the Supply Voltage Supervisor (SVS). Placing a shorting
bar between VIN and RSTSNS_IN selects VIN as monitored rail. Any other voltage rail can be connected
to the SVS input by removing the shorting bar and connecting the rail between RSTSNS_IN and GND.
bar between VIN and RSTSNS_IN selects VIN as monitored rail. Any other voltage rail can be connected
to the SVS input by removing the shorting bar and connecting the rail between RSTSNS_IN and GND.
In default setup VIN is monitored by the SVS.
5
TPS650061 Typical Performance Data and Characteristic Curves
through
present typical performance curves for the TPS650061. Since actual
performance data can be affected by measurement techniques and environmental variables, these curves
are presented for reference and may differ from actual field measurements.
are presented for reference and may differ from actual field measurements.
6
Using the TPS650061EVM 2.25 MHz Step-Down Converter with Dual LDO
SLVU354 – March 2010
Copyright © 2010, Texas Instruments Incorporated