0
Rating |
Automotive |
Topology |
Buck |
Iout (max) (A) |
3 |
Vin (max) (V) |
36 |
Vin (min) (V) |
5.5 |
Vout (max) (V) |
31 |
Vout (min) (V) |
1.22 |
Features |
Enable, Fixed soft start, Overcurrent protection |
Control mode |
Voltage mode |
Operating temperature range (°C) |
-40 to 125 |
Iq (typ) (A) |
0.003 |
Duty cycle (max) (%) |
89 |
HSOIC (DDA)-8-29.4 mm² 4.9 x 6
The TPS5430-Q1 is a high-output current PWM converter that integrates a low-resistance high side N-channel MOSFET. Included on the substrate with the listed features are a high-performance voltage error amplifier that provides tight voltage regulation accuracy under transient conditions, an undervoltage lockout (UVLO) circuit to prevent start-up until the input voltage reaches 5.5V, an internally set slow-start circuit to limit inrush currents, and a voltage feed-forward circuit to improve the transient response. Using the enable (ENA) pin, shutdown supply current is reduced to 15µA typically. Other features include an active-high enable, overcurrent limiting, overvoltage protection (OVP), and thermal shutdown. To reduce design complexity and external component count, the TPS5430-Q1 feedback loop is internally compensated. The TPS5430-Q1 regulates a wide variety of power sources including 24V buses.
The TPS5430-Q1 device is available in a thermally enhanced, easy-to-use 8-pin SOIC PowerPAD integrated circuit package. TI provides evaluation modules and the WEBENCH software tool to aid in quickly achieving high-performance power supply designs to meet aggressive equipment development cycles.