MAX1649CPA

Description：IC REG CTRLR BUCK 8DIP
Series：-
Mfr：Analog Devices Inc./Maxim Integrated
Package：Tube

SKU:6402419ef0f0 Category: DC DC Switching Controllers Brand: Analog Devices Inc./Maxim Integrated

Consult the customer manager about the wholesale price.

consultation hotline：86-132-6715-2157

email：[email protected]
Contact the product manager for consultation. One-stop consultation is available.

Do you want a lower wholesale price? Please send us your inquiry and we will reply immediately.

Product introduction

MAX1649CPA is listed in the DC DC Switching Controllers range at ChipApex. The manufacturer field lists Analog Devices Inc./Maxim Integrated. Its product description is IC REG CTRLR BUCK 8DIP. Review the specifications below when checking this part for your BOM.

DC DC Switching Controllers specifications for MAX1649CPA

Description：IC REG CTRLR BUCK 8DIP
Series：-
Mfr：Analog Devices Inc./Maxim Integrated
Package：Tube
Output Type：Transistor Driver
Function：Step-Down
Output Configuration：Positive
Topology：Buck
Number of Outputs：1
Output Phases：1
Voltage - Supply (Vcc/Vdd)：3V ~ 16V
Frequency - Switching：Up to 300kHz
Duty Cycle (Max)：96.50%
Synchronous Rectifier：No
Clock Sync：No
Serial Interfaces：-
Control Features：Enable
Operating Temperature：0°C ~ 70°C (TA)
Mounting Type：Through Hole
Package / Case：8-DIP (0.300", 7.62mm)
Supplier Device Package：8-PDIP
Grade：-
Qualification：-

DC DC Switching Controllers datasheet and documents for MAX1649CPA

MAX1649CPA

DC DC Switching Controllers Overview

The MAX1649CPA is a BiCMOS step-down DC-DC switching controller designed for high-efficiency power management. It operates with an input voltage range of 5.5V to 16V and provides fixed 5V or adjustable output voltages. The device utilizes a current-limited pulse-frequency-modulated (PFM) control scheme, achieving over 90% efficiency across loads from 10mA to 1.5A. Key electrical parameters include a maximum quiescent supply current of 100µA and a shutdown current of 5µA. It supports up to 300kHz switching frequency and offers dropout performance down to 300mV at 500mA load.

DC DC Switching Controllers Feature Summary

Implements a unique current-limited PFM control scheme that combines the benefits of PWM converters with significantly lower supply current consumption.
Delivers high efficiency exceeding 90% across a wide load range while maintaining low dropout voltage characteristics.
Features ultra-low shutdown supply current to extend battery life in portable applications.

DC DC Switching Controllers Applications

Battery-powered portable devices requiring efficient step-down regulation
PDAs and mobile handheld systems
Green PC applications for 5V-to-3.3V conversion

DC DC Switching Controllers Procurement Notes

Verify component authenticity through authorized Analog Devices distributors. Confirm package integrity and RoHS compliance status prior to integration. Check for obsolescence notices as this series may have limited availability. Ensure thermal management aligns with specified operating temperature ranges during PCB layout.

DC DC Switching Controllers Selection Notes

Select this controller when system requirements demand high efficiency at light loads combined with minimal standby power consumption. The PFM architecture is suitable for applications where quiescent current is critical. Verify that external components support the required switching frequency and current limits for the target output power.

DC DC Switching Controllers Part Context

This component belongs to the Maxim Integrated MAX1649 family of BiCMOS step-down DC-DC controllers. These devices are engineered for applications needing robust voltage regulation with minimal power loss. The family emphasizes efficiency and low current draw, making them distinct from standard PWM-only controllers in portable electronics design.