Description
The TPS54327 device is an adaptive on-time D-CAP2TM mode
synchronous buck converter. TheTPS54327 enables system designers to
complete the suite of various end equipment's power bus regulators
with a cost effective, low component count, low standby current
solution. The main control loop for the TPS54327 uses the D-CAP2
mode control which provides a fast transient response with no
external compensation components. The TPS54327 also has a
proprietary circuit that enables the device to adopt to both low
equivalent series resistance (ESR) output capacitors, such as
POSCAP or SP-CAP,and ultra-low ESR ceramic capacitors. The device
operates from 4.5-V to 18-V ViN input. The output voltage can be
programmed between 0.76 V and 7 V. The device also features an
adjustable soft start time. The TPS54327 is available in the 8-pin
DDA package and 10-pin DRC, and is designed to operate from - 40°C
to 85°C.
Features
●D-CAP2TM Mode Enables Fast Transient Response
●Low-Output Ripple and Allows Ceramic Output Capacitor
●Wide VIN Input Voltage Range: 4.5V to 18 V
●Output Voltage Range: 0.76 V to 7 V
●Highly Eficient Integrated FETs Optimized for Lower Duty Cycle
Applications
一100 mQ (High-Side) and 70 mQ (Low- Side)
●High Efficiency, Less Than 10 μA at shutdown
●High Initial Bandgap Reference Accuracy
●Adjustable Soft Start
●Prebiased Soft Start
●700-kHz Switching Frequency (fsw)
●Cycle- By-Cycle Overcurrent Limit
Application
●Wide Range of Applications for Low Voltage System
- Digital TV Power Supply
- High Definition Blu-ray Disc TM Players
- Networking Home Terminal
- Digital Set Top Box (STB)
