LM46001PWPR Power Regulator IC Switching Voltage Regulators Simple Switcher 3.5-60V, 1A
electronic voltage regulator circuit
,variable voltage regulator ic
LM46001PWPR Power Regulator IC Switching Voltage Regulators Simple Switcher 3.5-60V, 1A
1 Features
- 24-μA Quiescent Current in Regulation
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High Efficiency at Light Load (DCM and PFM)
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Meets EN55022/CISPR 22 EMI standards
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Integrated Synchronous Rectification
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Adjustable Switching Frequency: 200 kHz to 2.2 MHz (500 kHz default)
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Frequency Synchronization to External Clock
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Internal Compensation
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Stable With Many Combinations of Ceramic, Polymer, Tantalum, and Aluminum Capacitors
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Power-Good Flag
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Soft Start into Pre-Biased Load
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Internal Soft Start: 4.1 ms
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Extendable Soft-Start Time by External Capacitor
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Output Voltage Tracking Capability
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Precision Enable to Program System UVLO
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Output Short-Circuit Protection With Hiccup Mode
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Overtemperature Thermal Shutdown Protection
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Create a Custom Design Using the LM46001 With the WEBENCH® Power Designer
2 Applications
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Industrial Power Supplies
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Telecommunications Systems
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Sub-AM Band 12-V and 24-V Automotive
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Commercial Vehicle Power Supplies
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General Purpose Wide VIN Regulation
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High Efficiency Point-Of-Load Regulation
3 Description
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.
Device Informatio
|
PART NUMBER |
PACKAGE |
BODY SIZE (NOM) |
|
LM46001 |
HTSSOP (16) |
6.60 mm × 5.10 mm |
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