Refer to the PDF data sheet for device specific package drawings
The TPS6217x is a high efficiency synchronous step-down DC/DC converter, based on the DCS-Control™ topology.
With a wide operating input voltage range of 4.75 V to 28 V, the device is ideally suited for systems powered from multi cell Li-Ion as well as 12 V and even higher intermediate supply rails, providing up to 500-mA output current.
The TPS6217x automatically enters power save mode at light loads, to maintain high efficiency across the whole load range. As well, it features a sleep mode to supply applications with advanced power save modes like ultra low power micro controllers. The power good output may be used for power sequencing and/or power on reset.
The device features a typical quiescent current of 22 µA in normal mode and 4.8 µA in sleep mode. In sleep mode, the efficiency at very low load currents can be increased by as much as 20%. In shutdown mode, the shutdown current is less than 2 µA and the output is actively discharged.
The TPS6217x, available in an adjustable and a fixed output voltage version, is packaged in a small 2-mm × 3-mm 10-pin WSON package.
PART NUMBER | PACKAGE | BODY SIZE (NOM) |
---|---|---|
TPS6217x | WSON (10) | 2.00 mm × 3.00 mm |
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Changes from B Revision (January 2014) to C Revision
Changes from A Revision (November 2012) to B Revision
Changes from * Revision (October 2012) to A Revision
PART NUMBER | OUTPUT VOLTAGE | PACKAGE DESIGNATOR CODE | PACKAGE MARKING |
---|---|---|---|
TPS62175 | Adjustable | DQC | 62175 |
TPS62177 | Fixed, 3.3 V | DQC | 62177 |
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PIN (1) | I/O | DESCRIPTION | |
---|---|---|---|
NAME | NO. | ||
PGND | 1 | — | Power ground connection |
VIN | 2 | I | Supply voltage for the converter |
EN | 3 | I | Enable input (High = enabled, Low = disabled) |
NC | 4 | — | This pin is recommended to be connected to AGND but can left be floating |
FB | 5 | I | Voltage feedback of adjustable version. Connect resistive divider to this pin. TI recommends connecting FB to AGND for fixed voltage versions for improved thermal performance. |
AGND | 6 | — | Analog ground connection |
PG | 7 | O | Output power good (open drain, requires pullup resistor) |
SLEEP | 8 | I | Sleep mode input (High = normal operation, Low = sleep mode operation). Can be operated dynamically during operation. If sleep mode is not used, connect to VOUT. |
SW | 9 | O | Switch node, connected to the internal MOSFET switches. Connect inductor between SW and output capacitor. |
VOS | 10 | I | Output voltage sense pin and connection for the control loop circuitry. |
Exposed Thermal Pad | — | — | Must be connected to AGND and PGND. Must be soldered to achieve appropriate power dissipation and mechanical reliability. |