News & Events
Intersil Releases Ultra-Small Step-Down Regulator with Integrated FETs and Internal Compensation for a Wide Range of Applications
-- EL7532 features a 1.5 MHz switching frequency and 2 A continuous current~-- Tiny footprint provides up to 94 percent efficiency~-- Visit Intersil in Booth #215, Hall A4 at electonica 2004, November 9-12 in Munich
MILPITAS, CA, November 9, 2004 Intersil Corporation (NASDAQ: ISIL), a world leader in the design and manufacture of high performance analog solutions, today announced a new 2 amp integrated FET synchronous buck regulator with internal compensation and 100 percent duty cycle. The EL7532 is an excellent addition to Intersils EL753x family of integrated FET DC-DC regulators with 0.6 A to 2 A of continuous output currents. This family is ideal for space-limited on-board post regulation for use in applications that require 3.3 V or 5 V input, USB-powered, single Li-Ion battery or multiple NiMH battery.
Intersils EL7532 delivers 2A of continuous output current and operates with an input range from 2.5 V to 5.5 V over an ambient temperature range of -40 degrees C to +85 degrees C. The EL7532 is able to achieve the 2A of continuous current rating over the full operating temperature range due to the fused lead package. Compared with a regular MSOP-10 package, the fused lead package provides lower thermal resistance, resulting in lower die temperature. The output can be externally set from 0.8 V to Vin with a resistive divider. Using an internal oscillator, the EL7532 operates at a switching frequency of 1.5 MHz Should be 1.5MHz everywhere! with up to 94 percent efficiency. This high switching frequency reduces the inductor cost and the size of the inductor and capacitors, bringing the total solution area to approximately 0.18 inches (squared) - less than half the area of a dime. Other features include a shut-down mode in which the device only draws 1 uA of supply current, an external enable control, and an integrated power-on-reset function with a fixed 100 ms delay. The device also provides extensive protection features including over-current, over-voltage and thermal shutdown at a die temperature greater than 145 degrees C.
The ease of design, good efficiency and small footprint make this regulator ideal for powering circuits in space-limited applications. The EL7532 is available in a compact 10-pin MSOP package and requires as few as seven external passive components to provide a complete DC-DC buck regulator solution.
EL7532 Technical Features
- Max height 1.1 mm 10-pin MSOP
- 2A continuous output current (with integrated FETs)
- 1.5 MHz switching frequency
- 100 ms power-on-reset output (POR)
- Internally compensated voltage mode controller
- Up to 94 percent efficiency
- Less than 1 uA shut-down current
- Over-current and over-temperature protection
- 3.3 V and 5 V input POL applications
- ASIC/FPGA/DSP/uC Core voltage supplies
- Communication devices
- ADSL modems
- Set top boxes
- Portable instruments
- USB powered devices
- Li-Ion or NiMH battery powered devices
- Small form factor (SFP) modules
The EL7532 is available now in production quantities and priced at $2.30 for 1,000-unit volume orders. The datasheet, application brief and demo boards are available now. To learn more about Intersils power products, visit the Intersil web site at: www.intersil.com/power About Intersil
Intersil Corporation, a NASDAQ 100 Index company, is a leader in the design and manufacture of high performance analog semiconductors. The company’s products address three of the industry’s fastest growing markets: flat panel displays, optical storage (CD and DVD recordable) and power management. Intersil products include power management devices for battery management, hot-swap and hot-plug controllers, linear regulators, supervisory ICs, switching DC-DC regulators and power MOSFET drivers; optical storage laser diode drivers; DSL line drivers; video and high performance operational amplifiers; data converters; interface ICs; analog switches and multiplexers; crosspoint switches; voice-over-IP devices; and ICs for military, space and rad-hard applications. For more information about Intersil or to find out how to become a member of our winning team, visit the company’s web site and career page at www.intersil.com.
This release may include "forward looking statements" that are subject to risks and uncertainties. For information identifying economic, political, climatic, currency, regulatory, technological, competitive and some other important factors that could cause actual results to differ materially from those anticipated in the forward looking statements, see Intersil’s Safe Harbor Forward Looking Statement disclaimer found at http://www.intersil.com/legal.asp, as well as Intersil’s SEC filings as updated from time to time, found at http://www.sec.gov. All trademarks mentioned are the property of their respective owners.
