EL7563

Features:

• Integrated synchronous MOSFETs and current mode controller
• 4A continuous output current
• Up to 95% efficiency
• Internal patented current sense
• Cycle-by-cycle current limit
• 3V to 3.6V input voltage
• Adjustable output voltage 1V to 2.5V
• Precision reference
• ±0.5% load and line regulation
• Adjustable switching frequency to 1MHz
• Oscillator synchronization possible
• Internal soft-start
• Over-voltage protection
• Junction temperature indicator
• Over-temperature protection
• Under-voltage lockout
• Multiple supply start-up tracking
• Power-good indicator
• 20-pin SO (0.300") package
• 28-pin HTSSOP package
• Pb-Free available (RoHS compliant)


Application

• DSP, CPU core, and I/O supplies
• Logic/Bus supplies
• Portable equipment
• DC/DC converter modules
• GTL + Bus power supply


Pinout




Specifications

Supply Voltage between VIN or VDD and GND .. . . . . . . . . . . +4.5V
VLX Voltage . . . . . . . . . . . . . . . . . . . . .. . .  . . . . . . . . . . .VIN +0.3V
Input Voltage . . . . . . . . . . . . . . . . . . .  . . . . GND -0.3V, VDD +0.3V
VHI Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . GND -0.3V, VLX +6V
Storage Temperature . . . . . . . . . . . .  . . . . . . . .-65°C to +150°C
Operating Ambient Temperature . . . . . . . . . . . . .-40°C to +85°C
Operating Junction Temperature . . . . .. . . . . . . . . . . . . . . +135°C


Description

The EL7563 is a fixed frequency, current mode controlled DC/DC converter with integrated N-channel power MOSFETs and a high precision reference. The deviceEL7563  incorporates all the active circuitry required to implement a cost effective, user-programmable 4A synchronous stepdown regulator suitable for use in DSP core power supplies.By combining fused-lead packaging technology with an efficient synchronous switching architecture, high power output (10W) can be realized without the use of discrete external heat sinks.