패키징 정보
| 패키지 | 핀 HTSSOP (PWP) | 16 |
| 작동 온도 범위(°C) -40 to 125 |
| 패키지 수량 | 캐리어 2,000 | LARGE T&R |
LM46001의 주요 특징
- 24-µA Quiescent Current in Regulation
- High Efficiency at Light Load (DCM and PFM)
- Meets EN55022/CISPR 22 EMI standards
- Integrated Synchronous Rectification
- Adjustable Switching Frequency: 200 kHz to 2.2 MHz (500 kHz default)
- Frequency Synchronization to External Clock
- Internal Compensation
- Stable With Many Combinations of Ceramic, Polymer, Tantalum, and Aluminum Capacitors
- Power-Good Flag
- Soft Start into Pre-Biased Load
- Internal Soft Start: 4.1 ms
- Extendable Soft-Start Time by External Capacitor
- Output Voltage Tracking Capability
- Precision Enable to Program System UVLO
- Output Short-Circuit Protection With Hiccup Mode
- Overtemperature Thermal Shutdown Protection
- Create a Custom Design Using the LM46001 With the WEBENCH® Power Designer
LM46001에 대한 설명
The LM46001 regulator is an easy-to-use synchronous step-down DC-DC converter capable of driving up to 1 A of load current from an input voltage ranging from 3.5 V to 60 V. The LM46001 provides exceptional efficiency, output accuracy, and dropout voltage in a very small solution size. An extended family is available in 0.5-A and 2-A load current options in pin-to-pin compatible packages. Peak-current-mode control is employed to achieve simple control loop compensation and cycle-by-cycle current limiting. Optional features such as programmable switching frequency, synchronization, power-good flag, precision enable, internal soft start, extendable soft start, and tracking provide a flexible and easy-to-use platform for a wide range of applications. Discontinuous conduction and automatic frequency reduction at light loads improve light-load efficiency. The family requires few external components and pin arrangement allows simple, optimum PCB layout. Protection features include thermal shutdown, VCC undervoltage lockout, cycle-by-cycle current limit, and output short-circuit protection. The LM46001 device is available in the 16-lead HTSSOP package (PWP, 6.6 mm × 5.1 mm × 1.2 mm) with 0.65-mm lead pitch. The device is pin-to-pin compatible with LM46000, LM46002, LM43603, LM43602, LM43601, and LM43600.