ADP2441 - ADI

The pictures are for reference only, and the specific specifications can be found in the product manual.

Part No

ADP2441
Manufacturer

ADI
ChipWorker Part#

CW983470663
Description

36V,1A, Synchronous, Step-Down DC-DC Regulator
Documentation

Datasheet

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ADP2441 Specifications

Attribute	Attribute Value

Part Number	ADP2441
Manufacturer	ADI
ChipWorker Part#	CW983470663
Documentation	Datasheet
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Product Lifecycle Status	Recommended for New Designs

Product Description

Product Details
The ADP2441/ADP2442 is a constant frequency, current mode control, synchronous, step-down dc-to-dc regulator that is capable of driving loads up to 1 A with excellent line and load regulation characteristics. The ADP2441 operates with a wide input voltage range of 4.5 V to 36 V, which makes it ideal for regulating power from a wide variety of sources. In addition, the ADP2441 has very low minimum on time (50 ns) and is, therefore, suitable for applications requiring a very high step-down ratio.
The output voltage can be adjusted from 0.6 V to 0.9 V × VIN. High efficiency is obtained with integrated low resistance N-channel MOSFETs for both high-side and low-side devices.
The switching frequency is adjustable from 300 kHz to 1 MHz with an external resistor. The ADP2441 also has an accurate power-good (PGOOD) open-drain output signal.
At light load conditions, the regulator operates in pulse skip mode by skipping pulses and reducing switching losses to improve energy efficiency. In addition, at medium to heavy load conditions, the regulator operates in fixed frequency pulse-width modulation (PWM) mode to reduce electromagnetic interference (EMI).
The ADP2441 uses hiccup mode to protect the IC from short circuits or from overcurrent conditions on the output. The external programmable soft start limits inrush current during startup for a wide variety of load capacitances. Other key features include tracking, input undervoltage lockout (UVLO), thermal shutdown (TSD), and precision enable (EN), which can also be used as a logic level shutdown input.
The ADP2441 is available in a 3 mm × 3 mm, 12-lead LFCSP package and is rated for a junction temperature range of −40°C to +125°C.
Applications
Point of load applications
Distributed power systems
Industrial control supplies
Standard rail conversion to 24 V/12 V/5 V/3.3 V
### Features and Benefits
Wide input voltage range of 4.5 V to 36 V
Low minimum on time of
50 ns
Maximum load current of 1 A
High efficiency of up to 94%
Adjustable output down to 0.6 V
±1% output voltage accuracy
Adjustable switching frequency of 300 kHz to
1 MHz
Pulse skip mode at light load for power saving
Precision enable input pin
Open-drain power good
External soft start with tracking
Overcurrent-limit protection
Reference similar product ADP2442 with synchronization capability.
See data sheet for additional features.

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