ZHCS609A December 2011 – November 2016 TPS53316
PRODUCTION DATA.
| PIN | TYPE(1) | DESCRIPTION | |
|---|---|---|---|
| NO. | NAME | ||
| 1 | EN | I | Enable pin. Internally pulled-up to the VIN pin through a 2-MΩ resistor. The EN voltage must be less than (VIN + 0.5 V). |
| 2 | RF/OC | I | Switching frequency and OC level configuration pin: Connecting to ground: 1.1 MHz, 6.5-A OCP Pulled high or floating (internal pulled high): 1.1 MHz, 4.5-A OCP Connect with 24.3 kΩ to GND: 750 kHz, 4.5-A OCP Connect with 57.6 kΩ to GND: 750 kHz, 6.5-A OCP Connect with 105 kΩ to GND: 2 MHz, 4.5-A OCP Connect with 174 kΩ to GND: 2 MHz, 6. 5-A OCP |
| 3 | PGD | O | Power good output flag. Open-drain output. Pull up to an external rail through a resistor. |
| 4 | VBST | P | Supply input for high-side MOSFET (bootstrap terminal). Connect capacitor from this pin to SW terminal. |
| 5 | SW | B | Output inductor connection to integrated power devices |
| 6 | SW | B | Output inductor connection to integrated power devices |
| 7 | SW | B | Output inductor connection to integrated power devices |
| 8 | PS | I | Mode configuration pin (with10-µA current): Connecting to ground: Forced CCM with 4x softstart time Pulled high or floating (internal pulled high): Forced CCM master Connect with 24.3 kΩ to GND: HEF mode with 4x softstart time Connect with 57.6 kΩ to GND: HEFF mode Connect with 105 kΩ to GND: DE mode Connect with 174 kΩ to GND: DE mode with 4x softstart time |
| 9 | COMP | O | Error amplifier compensation terminal. Type III compensation method is generally recommended for stability. |
| 10 | FB | I | Voltage feedback pin. Use for OVP, UVP, and PGD determination. |
| 11 | AGND | G | Device analog ground terminal |
| 12 | VREG3 | O | 3.3-V LDO output, serves as supply voltage for internal analog circuitry. The EN pin controls the turnon function of the LDO. |
| 13 | VIN | P | Gate driver supply and power conversion input voltage. The input range is from 2.9 V to 6 V. |
| 14 | VIN | P | Gate driver supply and power conversion input voltage. The input range is from 2.9 V to 6 V. |
| 15 | PGND | P | Device power ground terminal |
| 16 | PGND | P | Device power ground terminal |
| — | PowerPad | — | Thermal pad of the device. Use 4 or 5 vias to connect to GND plane for heat dissipation. |