characteristic
Conversion Input Voltage Range: 3 V to 15 V
VDD Input Voltage Range: 4.5 V to 25 V
Output Voltage Range: 0.6 V to 5.5 V
5-V LDO Output
Integrated Power MOSFETs with 12-A Continuous
Output Current
<10-µA Shut Down Current
Auto-Skip Eco-mode ™ for Light-Load Efficiency
D-CAP ™ Mode with Fast Transient Response
Selectable Switching Frequency from 250 kHz to
1 MHz with an External Resistor
Built-in 1%, 0.6-V Reference
0.7-ms, 1.4-ms, 2.8-ms and 5.6-ms Selectable
Internal Voltage Servo Soft-Start
Pre-Charged Start-up Capability
Integrated Boost Switch
Adjustable Overcurrent Limit Via External Resistor
Overvoltage/Undervoltage, UVLO and Over-
Temperature Protection
Support All Ceramic Output Capacitors
Open Drain Power Good Indication
40-pin VQFN Package with Thermal Pad
explain
TPS53315 is a D-CAP ™ mode, 12-A synchronous switcher with integrated MOSFETs. It is designed for ease of use, low external component count, and small package power systems.
This device features single-rail input support, one 19-mΩ and one 7-mΩ integrated MOSFET, accurate 1%, 0.6 V Reference, and integrated boost switch. A sample of competitive features include: greater than 96% maximum efficiency, 3 V to 15 V wide input voltage range, very low external component count, D-CAP ™ mode control for super fast transient, selectable auto-skip and PWM operation, internal soft-start control, adjustable frequency, and no need for compensation.
The conversion input voltage ranges from 3 V to 15 V, the supply voltage range is from 4.5 V to 25 V, and the output voltage range is from 0.6 V to 5.5 V.
The TPS53315 is available in a 5 mm × 7 mm 40-pin, VQFN package and is specified from –40°C to 85°C.
