Product Summary

The TPS54350PWPR is a medium output current synchronous buck PWM converter with an integrated high side MOSFET and a gate driver for an optional low side external MOSFET. Features of the TPS54350PWPR include a high performance voltage error amplifier that enables maximum performance under transient conditions and flexibility in choosing the output filter inductors and capacitors. The TPS54350PWPR has an under-voltage-lockout circuit to prevent start-up until the input voltage reaches 4.5 V; an internal slow-start circuit to limit in-rush currents; and a power good output to indicate valid output conditions.

Parametrics

TPS54350PWPR absolute maximum ratings: (1)Input voltage range, VI: VIN: -0.3 V to 21.5 V, VSENSE: -0.3 V to 8.0 V, UVLO: -0.3 V to 8.0 V; (2)Output voltage range, VO: LSG: -0.3 to 8.5 V, RT: -0.3 to 4.0 V, SYNC: -0.3 to 4.0 V, PWRGD: -0.3 to 6.0 V, COMP: -0.3 to 4.0 V; (3)Source current, IO: PH: -1.5 V to 22 V, PH: Internally Limited (A), LSG (Steady State Current) 10 mA, COMP, VBIAS: 3 mA; (4)Voltage differential: AGND to PGND: ±0.3 V; (5)Operating virtual junction temperature range, TJ: -40℃ to +150℃; (6)Storage temperature, Tstg: -65℃ to +150℃; (7)Lead temperature 1,6 mm (1/16 inch) from case for 10 seconds: 260℃.

Features

TPS54350PWPR features: (1)100 mΩ, 4.5-A Peak MOSFET Switch for High Efficiency at 3-A Continuous Output Current; (2)Uses External Lowside MOSFET or Diode; (3)Output Voltage Adjustable Down to 0.891 V With 1% Accuracy; (4)Synchronizes to External Clock; (5)180 Out of Phase Synchronization; (6)Wide PWM Frequency-Fixed 250 kHz, 500 kHz or Adjustable 250 kHz to 700 kHz; (7)Internal Slow Start; (8)Load Protected by Peak Current Limit and Thermal Shutdown.

Diagrams

TPS54350PWPR simplified schematic diagram

Image Part No Mfg Description Data Sheet Download Pricing
(USD)		 Quantity
TPS54350PWPR
TPS54350PWPR
Texas Instruments
Switching Converters, Regulators & Controllers 4.5 to 20V Inp 3A Step-Down Converter
Data Sheet
0-1: $1.89
1-25: $1.82
25-100: $1.55
100-250: $1.46
TPS54350PWPRG4
TPS54350PWPRG4
Texas Instruments
Switching Converters, Regulators & Controllers 4.5 to 20V Inp 3A Step-Down Converter
Data Sheet
0-1570: $1.42
1570-2000: $1.39
2000-5000: $1.38