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Features for the LM5160

Wide 4.5-V to 65-V Input Voltage Range
Integrated High-Side and Low-Side Switches

• No External Schottky Diode Required

2-A Maximum Load Current
Adaptive Constant On-Time Control

• No External Loop Compensation
• Fast Transient Response

Selectable Forced PWM or DCM Operation

• FPWM Supports Multi-Output Fly-Buck™

Nearly Constant Switching Frequency

• Resistor Adjustable up to 1 MHz

Programmable Soft-Start Time
Prebiased Start-Up
±1% Feedback Voltage Reference
LM5160A Allows External V_CC Bias
Inherent Protection Features for Robust Design

• Peak Current Limiting Protection
• Adjustable Input UVLO andHysteresis
• VCC and Gate Drive UVLO Protection
• ThermalShutdown Protection With Hysteresis

Create a Custom Design Using the LM5160A With the WEBENCH^® Power Designer

Description for the LM5160

The LM5160/A is a 65-V,2-A synchronous step-down converter with integratedhigh-side and low-side MOSFETs. The adaptive constant on-time control scheme requires no loopcompensation and supports high step-down ratios with fast transient response. An internal feedbackamplifier maintains ±1% output voltage regulation over the entire operating temperature range. Theon-time varies inversely with input voltage resulting in nearly constant switchingfrequency.

Peak and valley current limit circuits protect against overload conditions. Theundervoltage lockout (EN/UVLO) circuit provides independently adjustable input undervoltagethreshold and hysteresis. The LM5160/A is programmed through the FPWM pin to operate in continuousconduction mode (CCM) from no load to full load or to automatically switch to discontinuousconduction mode (DCM) at light load for higher efficiency. Forced CCM operation supportsmultiple-output and isolated Fly-Buck applications using a coupled inductor.

The LM5160A shares the same features and pin configuration as theLM5160. An external bias supply can be connected to the VCC pin of the LM5160A in Buck and Fly-Buckapplications. This additional capability lowers IC power dissipation and improves efficiency athigh input voltages.

1. Who are the staff in your R & D department? What are your qualifications?

-R & D Director: formulate the company’s long-term R & D plan and grasp the direction of research and development; Guide and supervise r&d department to implement company r&d strategy and annual R&D plan; Control the progress of product development and adjust the plan; Set up excellent product research and development team, audit and training related technical personnel.

R & D Manager: make new product R & D plan and demonstrate the feasibility of the plan; Supervise and manage the progress and quality of r&d work; Research new product development and propose effective solutions according to customer requirements in different fields

R&d staff: collect and sort out key data; Computer programming; Conducting experiments, tests and analyses; Prepare materials and equipment for experiments, tests and analyses; Record measurement data, make calculations and prepare charts; Conduct statistical surveys

2. What is your product research and development idea?

- Product conception and selection product concept and evaluation product definition and project plan design and development product testing and validation launch to market