Texas Instruments Ultra Small Step Down Converter for TPS622311, TPS62235, TPS62239, Evaluation Module TPS62239EVM-574 TPS62239EVM-574 데이터 시트
제품 코드
TPS62239EVM-574
Introduction
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1
Introduction
The Texas Instruments TPS62239EVM-574 evaluation module helps designers evaluate the operation
and performance of the TPS6223x family of devices. These devices are high-efficiency, ultra-small size,
buck converters that switch at up to 3 MHz.
and performance of the TPS6223x family of devices. These devices are high-efficiency, ultra-small size,
buck converters that switch at up to 3 MHz.
The EVM contains three independent dc/dc converters.
lists the default output voltages of the
converters.
Table 1. Device and Output Voltage Configurations
Converter
Integrated Circuit
Output Voltage
U11
TPS622311DRY
1.1 V
U21
TPS62235DRY
1.2 V
U31
TPS62239DRY
1 V
See the data sheet (
) for the various fixed output voltage options available in the TPS6223X
device family.
2
Setup
This section describes the jumpers and connectors on the EVM and how to properly connect, set up, and
use the TPS62239EVM-574.
use the TPS62239EVM-574.
2.1
Input/Output Connector Descriptions
2.1.1
J11 , J21, and J31 – VIN
This is the positive input connection to the corresponding converter. Twist the leads to the input supply,
and keep as short as possible to minimize EMI transmission.
and keep as short as possible to minimize EMI transmission.
2.1.2
J13 , J23, and J33 – GND
This is the return connection for the input power supply for the corresponding converter.
2.1.3
J12, J22, and J32 – Input Sense
This connection provides monitoring for input voltage using independent traces to the input capacitor.
2.1.4
J14, J24, and J34 – VOUT
This is the positive connection from the output of the corresponding buck power supply.
2.1.5
J16 , J26, and J36 – GND
This is the negative connection from the output of the corresponding buck power supply.
2.1.6
J15, J25, and J35 – Output Sense
This connection provides monitoring for output voltage using independent traces to the output capacitor.
2.1.7
JP11, JP21, JP31 – ENABLE
This jumper enables or disables the converter through the IC EN pin. Connect the shorting jumper from
the center (EN) pin to either the ON or OFF position. Never leave EN floating.
the center (EN) pin to either the ON or OFF position. Never leave EN floating.
2
TPS62239EVM-574 User's Guide
SLVU369 – April 2010
Copyright © 2010, Texas Instruments Incorporated