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Product Descriptions

The LM26420 regulator is a monolithic, highefficiency dual PWM step-down DC/DC converter. This device has the ability to drive two 2-A loads with an internal 75-mΩ PMOS top switch and an internal 50-mΩ NMOS bottom switch using state-of-the-art BICMOS technology results in the best power density available. The world-class control circuitry allow on times as low as 30 ns, thus supporting exceptionally high-frequency conversion over the entire 3-V to 5.5- V input operating range down to the minimum output voltage of 0.8 V.

Although the operating frequency is high, efficiencies up to 93 PERCENT are easy to achieve. External shutdown is included, featuring an ultra-low standby current. The LM26420 utilizes current-mode control and internal compensation to provide high performance regulation over a wide range of operating conditions.

Product Features

? Compliant with CISPR25 Class 5 Conducted Emissions

? Input Voltage Range of 3 V to 5.5 V

? Output Voltage Range of 0.8 V to 4.5 V

? 2-A Output Current per Regulator

? High Switching Frequency: 2.2 MHz (LM26420X) 0.55 MHz (LM26420Y)

? 0.8 V, 1.5% Internal Voltage Reference

? Internal Soft Start

? Independent Power Good and Precision Enable for Each Output

? Current Mode, PWM Operation

? Thermal Shutdown

? Overvoltage Protection

? Start-up into Prebiased Output Loads

? Regulators are 180° Out of Phase

? Create a Custom Design Using the LM26420 With the WEBENCH? Power Designer

Product Applications

? Local 5 V to Vcore of FPGAs

? Core Power in HDDs and Set-Top Boxes

? USB Powered Devices

? Powering Core and I/O Voltages for CPUs and ASICs

Specifications

Actual product photos

Payment&Transportation

Official Certificate&Certificate

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