TPS61170QDRVRQ1

The TPS61170-Q1 is a monolithic, high-voltage switching regulator with integrated 1.2-A, 40-V power MOSFET. The device can be configured in several standard switching-regulator topologies, including boost and SEPIC. The device has a wide input-voltage range to support applications with input voltage from multicell batteries or regulated 5-V, 12-V power rails. The TPS61170-Q1 operates at a 1.2-MHz switching frequency, allowing the use of low-profile inductors and low-value ceramic input and output capacitors. External loop compensation components give the user flexibility to optimize loop compensation and transient response. The device has built-in protection features, such as pulse-by-pulse overcurrent limit, soft start, and thermal shutdown. The FB pin regulates to a reference voltage of 1.229 V. The reference voltage can be lowered using a 1-wire digital interface (EasyScale protocol) through the CTRL pin. Alternatively, a pulse width modulation (PWM) signal can be applied to the CTRL pin. The duty cycle of the signal reduces the feedback reference voltage proportionally. The TPS61170-Q1 is available in a 6-pin 2-mm × 2-mm SON package, allowing a compact power-supply solution.

Applications

• HEV and EV Charger Systems
• Advanced Driver Assistance Systems (ADASs)

Key features

• Qualified for Automotive Applications
• 3-V to 18-V Input Voltage Range
• High Output Voltage: Up to 38 V
• 1.2-A Integrated Switch
• 1.2-MHz Fixed Switching Frequency
• 12 V at 300 mA and 24 V at 150 mA from 5-V Input (Typical)
• Up to 93% Efficiency
• On-The-Fly Output Voltage Reprogramming
• Skip-Switching Cycle for Output Regulation at Light Load
• Built-in Soft Start
• 6-Pin, 2-mm × 2-mm SON Package