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EL7562CU Datasheet(PDF) 1 Page - Intersil Corporation |
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EL7562CU Datasheet(HTML) 1 Page - Intersil Corporation |
1 / 9 page 1 ® FN7295 CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures. 1-888-INTERSIL or 321-724-7143 | Intersil (and design) is a registered trademark of Intersil Americas Inc. Copyright © Intersil Americas Inc. 2004. All Rights Reserved. Elantec is a registered trademark of Elantec Semiconductor, Inc. All other trademarks mentioned are the property of their respective owners. EL7562 Monolithic 2Amp DC-DC Step-Down Regulator The EL7562 is an integrated, synchronous step-down regulator with output voltage adjustable from 1.0V to 3.8V. It is capable of delivering 2A continuous current at up to 95% efficiency. The EL7562 operates at a constant frequency pulse width modulation (PWM) mode, making external synchronization possible. Patented on-chip resistorless current sensing enables current mode control, which provides cycle-by-cycle current limiting, over-current protection, and excellent step load response. The EL7562 is available in a fused-lead 16-pin QSOP package. With proper external components, the whole converter fits into a less than 0.5 in2 area. The minimal external components and small size make this EL7562 ideal for desktop and portable applications. The EL7562 is specified for operation over the 0°C to +70°C temperature range. Pinout EL7562 (16-PIN QSOP) TOP VIEW Features • Integrated synchronous MOSFETs and current mode controller • 2A continuous output current • Up to 95% efficiency • 3.3V or 5V nominal input voltage • Adjustable output from 1V to 3.8V • Cycle-by-cycle current limit • Precision reference • ±0.5% load and line regulation • Adjustable switching frequency to 1MHz • Oscillator synchronization possible • Internal soft-start • Over-temperature protection • Under-voltage lockout • 16-pin QSOP package Applications • DSP, CPU core and IO supplies • Logic/Bus supplies • Portable equipment • DC-DC converter modules • GTL + Bus power supply Please refer to page 4 for 3.3V input Application Diagram Manufactured under U.S. Patent No. 57,323,974 1 2 3 4 16 15 14 13 5 6 7 12 11 10 8 9 SGND COSC VDD PGND PGND VIN VIN EN PGND VREF FB VDRV LX LX VHI PGND C4 270pF C3 0.1µF C2 0.1µF C1 100µF R3 39 Ω VIN (4.5V- 5.5V) C6 0.1µF C7 100µF R2 2.37k Ω R1 1k Ω C5 0.1µF VO (3.3V, 2A) Ordering Information PART NUMBER PACKAGE TAPE & REEL PKG. DWG. # EL7562CU 16-Pin QSOP - MDP0040 EL7562CU-T7 16-Pin QSOP 7” MDP0040 EL7562CU-T13 16-Pin QSOP 13” MDP0040 Data Sheet April 30, 2004 NOT REC OMM END ED F OR N EW DES IGN S SEE EL7 532 |
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