The TPS6208x devices are a family of high frequency synchronous step down converters. With an input voltage range of 2.3 V to 6 V, common battery technologies are supported. Alternatively, the device can be used for low voltage system power rails.
The TPS6208x focuses on high efficiency step-down conversion over a wide output current range. At medium to heavy loads, the converter operates in PWM mode and automatically enters Power Save Mode operation at light load currents to maintain high efficiency over the entire load current range. To maintain high efficiency at very low load or no load currents, a Snooze Mode with an ultra-low quiescent current is implemented. This function, enabled by the MODE pin, increases the run-time of battery driven applications and keeps the standby current at its lowest level to meet green energy standards targeting a low stand-by current.
To address the requirements of system power rails, the internal loop compensation allows a large selection of external output capacitor values in excess of 100 µF. With its DCS-Control™ architecture, excellent load transient performance and output voltage regulation accuracy is achieved. The device is available in 2-mm × 2-mm WSON package with Thermal PAD.
PART NUMBER | PACKAGE | BODY SIZE (NOM) |
---|---|---|
TPS62080 | WSON (8) | 2.00 mm × 2.00 mm |
TPS62080A | ||
TPS62081 | ||
TPS62082 |
Typical Application Schematic |
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Changes from E Revision (April 2015) to F Revision
Changes from D Revision (July 2013) to E Revision
Changes from C Revision (May 2013) to D Revision
Changes from B Revision (March 2012) to C Revision
Changes from A Revision (February 2012) to B Revision
Changes from * Revision (September 2011) to A Revision
PART NUMBER(2) | OUTPUT VOLTAGE(1) | OUTPUT DISCHARGE RESISTOR | PACKAGE MARKING | PACKAGE |
---|---|---|---|---|
TPS62080DSG | Adjustable | 1 kΩ | QVR | 8-Pin WSON |
TPS62081DSG | 1.8 V | 1 kΩ | QVS | 8-Pin WSON |
TPS62082DSG | 3.3 V | 1 kΩ | QVT | 8-Pin WSON |
TPS62080ADSG | Adjustable | 40 Ω | SBN | 8-Pin WSON |
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PIN | I/O | DESCRIPTION | |
---|---|---|---|
NAME | NO. | ||
EN | 1 | IN | Device Enable Logic Input. Logic HIGH enables the device, logic LOW disables the device and turns it into shutdown. Do not leave floating. |
GND | 2 | PWR | Power and Signal Ground. |
MODE | 3 | IN | Snooze Mode Enable Logic Input. Logic HIGH enables the Snooze Mode, logic LOW disables the Snooze Mode. Do not leave floating. |
FB | 4 | IN | Feedback Pin for the internal control loop. Connect this pin to the external feedback divider for the adjustable output versions. For the fixed output voltage versions, this pin must be left floating or connected to GND. |
VOS | 5 | IN | Output Voltage Sense Pin for the internal control loop. Must be connected to output voltage. |
PG | 6 | OUT | Power Good open drain output. This pin is pulled to low if the output voltage is below regulation limits. Can be left floating if not used. |
SW | 7 | PWR | Switch Pin connected to the internal MOSFET switches and inductor terminal. Connect the inductor of the output filter here. |
VIN | 8 | PWR | Power Supply Voltage Input. |
Exposed Thermal Pad | — | — | Connect it to GND. The thermal pad must be soldered to achieve appropriate power dissipation and mechanical reliability. |
MIN | MAX | UNIT | |
---|---|---|---|
Voltage at VIN, PG, VOS(2) | –0.3 | 7 | V |
Voltage at SW(2)(3) | –1 | 7 | V |
Voltage at FB(2) | –0.3 | 3.6 | V |
Voltage at EN, MODE(2) | –0.3 | VIN + 0.3 | V |
Sink current at PG | 0 | 0.5 | mA |
Operating junction temperature, TJ | –40 | 150 | °C |
Storage temperature, Tstg | –65 | 150 | °C |
VALUE | UNIT | |||
---|---|---|---|---|
V(ESD) | Electrostatic discharge | Human body model (HBM), per ANSI/ESDA/JEDEC JS-001(1) | ±2000 | V |
Charged-device model (CDM), per JEDEC specification JESD22-C101(2) | ±500 |
MIN | NOM | MAX | UNIT | ||
---|---|---|---|---|---|
VIN | Input voltage | 2.3 | 6 | V | |
VOUT | Output voltage | 0.5 | 4 | V | |
ISNOOZE | Load current in Snooze Mode | 2 | mA | ||
TJ | Operating junction temperature | –40 | 125 | °C |
THERMAL METRIC(1) | TPS6208x | UNIT | |
---|---|---|---|
DSG (WSON) | |||
8 PINS | |||
RθJA | Junction-to-ambient thermal resistance | 59.7 | °C/W |
RθJC(top) | Junction-to-case (top) thermal resistance | 70.1 | |
RθJB | Junction-to-board thermal resistance | 30.9 | |
ψJT | Junction-to-top characterization parameter | 1.4 | |
ψJB | Junction-to-board characterization parameter | 31.5 | |
RθJC(bot) | Junction-to-case (bottom) thermal resistance | 8.6 |