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The HIP6521 provides the power control and protection for four output voltages in high-performance microprocessor and computer applications. The IC integrates a voltage-mode PWM controller and three linear controllers, as well as monitoring and protection functions into a 16 Ld SOIC package. The PWM controller is intended to regulate the microprocessor memory core voltage with a synchronous-rectified buck converter. The linear controllers are intended to regulate the computer system's AGP 1. 5V bus power, the 2. 5V clock power, and the 1. 8V power for the North/South Bridge core voltage and/or cache memory circuits. Both the switching regulator and linear voltage references provide ±2% of static regulation over line, load, and temperature ranges. All outputs are user-adjustable by means of an external resistor divider. All linear controllers employ bipolar NPNs for the pass transistors. The HIP6521 monitors all the output voltages. The PWM controller's adjustable overcurrent function monitors the output current by using the voltage drop across the upper MOSFET's rDS(ON). The linear regulator outputs are monitored via the FB pins for undervoltage events.
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| Type | Title | Date |
| Datasheet | PDF 681 KB | |
| White Paper | PDF 295 KB | |
| End Of Life Notice | PDF 206 KB | |
| Product Change Notice | PDF 152 KB | |
| Application Note | PDF 509 KB | |
| Application Note | PDF 397 KB | |
| Manual - Development Tools | PDF 862 KB | |
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The HIP6521EVAL1 evaluates the HIP6521 PWM and triple linear power controller. This evaluation board embodies a 4-output regulator solution targeted at supplying power...
Schematic symbols, PCB footprints, and 3D CAD models from SamacSys can be found by clicking on products in the Product Options table. If a symbol or model isn't available, it can be requested directly from the website.
| SOICN | 16 | Tube | No | 0 to +70°C | ||
| SOICN | 16 | Reel | No | 0 to +70°C | ||
| SOICN | 16 | Tube | No | 0 to +70°C | ||
| SOICN | 16 | Reel | No | 0 to +70°C |
