The TPS20xxC and TPS20xxC-2 power-distribution switch family is intended for applications, such as USB, where heavy capacitive loads and short circuits are likely to be encountered. This family offers multiple devices with fixed current-limit thresholds for applications from 0.5 A to 2 A.
The TPS20xxC and TPS20xxC-2 family limits the output current to a safe level by operating in a constant-current mode when the output load exceeds the current limit threshold. This provides a predictable fault current under all conditions. The fast overload response time eases the burden on the main 5-V supply to provide regulated power when the output is shorted. The power-switch rise and fall times are controlled to minimize current surges during turnon and turnoff.
PART NUMBER | PACKAGE | BODY SIZE (NOM) |
---|---|---|
TPS20xxC, TPS20xxC-2 |
SOT-23 (5) | 2.90 mm × 1.60 mm |
VSSOP (8) | 3.00 mm × 3.00 mm | |
MSOP-PowerPAD (8) | 3.00 mm × 3.00 mm |
Changes from G Revision (July 2013) to H Revision
Changes from F Revision (August 2012) to G Revision
Changes from E Revision (April 2012) to F Revision
Changes from D Revision (February 2012) to E Revision
Changes from C Revision (October 2011) to D Revision
Changes from B Revision (September 2011) to C Revision
Changes from A Revision (July 2011) to B Revision
Changes from * Revision (June 2011) to A Revision
MAXIMUM OPERATING CURRENT |
OUTPUT DISCHARGE | ENABLE | BASE PART NUMBER | PACKAGED DEVICE AND MARKING(1) | ||
---|---|---|---|---|---|---|
MSOP-8 (DGN) PowerPAD™ |
SOT23-5 (DBV) |
VSSOP-8 (DGK) |
||||
0.5 | Y | Low | TPS2041C | —(2) | PYJI | — |
0.5 | Y | High | TPS2051C | — | VBYQ | — |
1 | Y | Low | TPS2061C | PXMI | PXLI | — |
1 | Y | High | TPS2065C | VCAQ | VCAQ | — |
1 | N | High | TPS2065C-2 | PYRI | PYQI | — |
1.5 | Y | Low | TPS2068C | PXNI | — | — |
1.5 | Y | High | TPS2069C | VBUQ | PYKI | — |
1.5 | N | High | TPS2069C-2 | PYSI | — | — |
2 | Y | Low | TPS2000C | BCMS | — | PXFI |
2 | Y | High | TPS2001C | VBWQ | – | PXGI |
PIN | I/O | DESCRIPTION | |
---|---|---|---|
NAME | NO. | ||
EN/EN | 4 | I | Enable input, logic high turns on power switch |
FLT | 5 | O | Active-low open-drain output, asserted during overcurrent, or overtemperature conditions |
GND | 1 | — | Ground connection |
IN | 2, 3 | PWR | Input voltage and power-switch drain; connect a 0.1-µF or greater ceramic capacitor from IN to GND close to the IC |
OUT | 6, 7, 8 | PWR | Power-switch output, connect to load |
PowerPAD (DGN Only) | PowerPAD | — | Internally connected to GND. Connect PAD to GND plane as a heatsink for the best thermal performance. PAD may be left floating if desired. See Power Dissipation and Junction Temperature for guidance. |