The TPS61378-Q1 is a fully-integrated
synchronous boost converter with an integrated load disconnect function. The input
voltage covers 2.3V to 14V while the maximal output voltage covers up to 18.5V. The
switching current limit is programmable from 1A to 4.8A. The device consumes 25µA
quiescent current from VIN.
The TPS61378-Q1 employs peak current
mode control with the switching frequency programmable from 200kHz to 2.2MHz. The
device works in fixed frequency PWM operation in medium to heavy loads. There are
two optional modes in light load by configuring the MODE pin: auto PFM mode and
forced PWM to balance the efficiency and noise immunity in light load. The switching
frequency can be synchronized to an external clock. The TPS61378-Q1 uses the spread
spectrum of the internal clock to be more EMI friendly at FPWM mode. In addition,
there is an internal soft-start time to limit the inrush current.
The TPS61378-Q1 has various fixed
output voltage versions to save the external feedback resistor. It supports the
external loop compensation so that the stability and transient response can be
optimized at wider VOUT/VIN ranges. It also integrates robust
protection features including output short protection, output overvoltage
protection, and thermal shutdown protection. The TPS61378-Q1 is available in a 3mm ×
3mm 16-pin QFN package with wettable flank.
The TPS61378-Q1 is a fully-integrated
synchronous boost converter with an integrated load disconnect function. The input
voltage covers 2.3V to 14V while the maximal output voltage covers up to 18.5V. The
switching current limit is programmable from 1A to 4.8A. The device consumes 25µA
quiescent current from VIN.
The TPS61378-Q1 employs peak current
mode control with the switching frequency programmable from 200kHz to 2.2MHz. The
device works in fixed frequency PWM operation in medium to heavy loads. There are
two optional modes in light load by configuring the MODE pin: auto PFM mode and
forced PWM to balance the efficiency and noise immunity in light load. The switching
frequency can be synchronized to an external clock. The TPS61378-Q1 uses the spread
spectrum of the internal clock to be more EMI friendly at FPWM mode. In addition,
there is an internal soft-start time to limit the inrush current.
The TPS61378-Q1 has various fixed
output voltage versions to save the external feedback resistor. It supports the
external loop compensation so that the stability and transient response can be
optimized at wider VOUT/VIN ranges. It also integrates robust
protection features including output short protection, output overvoltage
protection, and thermal shutdown protection. The TPS61378-Q1 is available in a 3mm ×
3mm 16-pin QFN package with wettable flank.