部品番号
TD1720
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ECHCODE SEMICONDUCTOR, INC.
TD1720 データシート - ECHCODE SEMICONDUCTOR, INC.
ECHCODE SEMICONDUCTOR, INC.
General Description
The TD1720 is a voltage mode, fixed 300kHz switching frequency, synchronous buck converter. The TD1720 allows wide input voltage that is either a single 5~12V or two supply voltage(s) for various applications. A power-on-reset (POR) circuit monitors the VCC supply voltage to prevent wrong logic controls. A builtin soft-start circuit prevents the output voltages from overshoot as well as limits the input current.
Features
● Wide 5V to 12V Supply Voltage
● Power-On-Reset Monitoring on VCC
● Excellent Output Voltage Regulations 0.8V Internal
Reference ±1% Over-Temperature Range
● Integrated Soft-Start
● Voltage Mode PWM Operation with External
Compensation
● Up to 90% Duty Ratio for Fast Transient Response
● Constant Switching Frequency 300kHz ±10%
● Drive Dual Low Cost N-MOSFETs with Adaptive
Dead-Time Control
● 50% Under-Voltage Protection
● 125% Over-Voltage Protection
● Adjustable Over-Current Protection Threshold Using the
RDS(ON) of Low-Side MOSFET
● Shutdown Control by COMP
● Power Good Monitoring (TDFN-10 3mmx3mm Package
Only)
● SOP-8P and TDFN3x3-10 Packages
● Lead Free and Green Devices Available (RoHS Compliant)
Applications
● Graphic Cards
● DSL, Switch HUB
● Wireless Lan
● Notebook Computer
● Mother Board
● LCD Monitor/TV
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