Advanced Load Management
ecoSWITCHt Advanced Load Management
Controlled Load Switch with Low RON
NCP45522, NCP45523
The NCP4552x series of load...
Description
ecoSWITCHt Advanced Load Management
Controlled Load Switch with Low RON
NCP45522, NCP45523
The NCP4552x series of load switches provide a component and area-reducing solution for efficient power domain switching with inrush current limit via soft start. In addition to integrated control functionality with low on−resistance, these devices offer system safeguards and monitoring via fault protection and power good signaling. This cost effective solution is ideal for power management and hot-swap applications requiring low power consumption in a small footprint.
Features
Advanced Controller with Charge Pump
Integrated N-Channel MOSFET with Low RON Input Voltage Range 0.5 V to 13.5 V
Soft-Start via Controlled Slew Rate
Adjustable Slew Rate Control (NCP45523)
Power Good Signal (NCP45522)
Thermal Shutdown
Undervoltage Lockout
Short-Circuit Protection
Extremely Low Standby Current
Load Bleed (Quick Discharge)
This is a Pb−Free Device
Typical Applications
Portable Electronics and Systems
Notebook and Tablet Computers
Telecom, Networking, Medical, and Industrial Equipment
Set−Top Boxes, Servers, and Gateways
Hot Swap Devices and Peripheral Ports
VCC
EN PG*
VIN
Bandgap &
Biases
Control Logic
Thermal, Undervoltage
& Short−Circuit
Protection
Charge Pump
Delay and Slew Rate
Control
SR*
GND
BLEED
VOUT
Figure 1. Block Diagram
(*Note: either PG or SR available for each part)
www.onsemi.com
RON TYP 18.0 mW
18.8 mW 21.9 mW
VCC...
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