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MAXIM INTEGRATED / ANALOG DEVICES MAX639CSA Step-Down Voltage Regulator
The MAX639/MAX640/MAX653 are high-efficiency, low quiescent current step-down switching regulators that provide preset or adjustable output voltages of 5V, 3.3V, and 3V, respectively. They operate over input ranges of 4V to 11.5V, delivering up to 225mA load current with high efficiency. Featuring internal 1A power MOSFETs and a current-limiting PFM control scheme, these devices are ideal for portable electronics, battery-powered systems, and low to medium-power applications requiring high efficiency and low power dissipation.
MAXIM INTEGRATED / ANALOG DEVICES MAX639CSA Step-Down Voltage Regulator Specifications:
- Input Voltage Range: 4V to 11.5V
- Output Voltages: 5V (MAX639), 3.3V (MAX640), 3V (MAX653), or adjustable from 1.3V to input voltage
- Maximum Output Current: 225mA
- Quiescent Current: 10μA
- Switching Frequency: Approximately 300kHz
- Internal Power MOSFET: 1A capacity
- Dropout Voltage: max 0.5V at 100mA load
- Efficiency: up to 85-95% depending on load and model
- Package Types: Plastic DIP, SO, CERDIP
- Operating Temperature Range: -55°C to +125°C (depending on model)
- Standby and shutdown modes supported
- Low-battery detection and voltage monitoring features
- Control scheme: Pulse-frequency-modulated (PFM) for high efficiency
- Application: Battery-powered systems, portable instruments, linear regulator replacement
Buy the Buy MAXIM MAX639CSA Part Number MAX639CSA Online
Purchase the MAXIM MAX639CSA online today to ensure high efficiency and low quiescent current for your portable electronics. These regulators deliver up to 225mA current with preset output voltages of 5V, 3.3V, or 3V, or can be customized for other voltages. Ideal for compact, battery-powered applications, they feature internal MOSFET switches, low dropout, and a PFM control scheme that maximizes energy conservation. Buy now to improve your device’s power management with guaranteed quality and reliable performance.
Get MAXIM MAX639CSA today—built for high efficiency, low power consumption, and reliable step-down regulation in portable devices.
Frequently Asked Questions
Where can I buy MAXIM INTEGRATED / ANALOG DEVICES MAX639CSA?
You can click on the BUY or RFQ button to purchase MAX639CSA from an authorized MAXIM INTEGRATED / ANALOG DEVICES distributor.
How do I troubleshoot issues or seek technical support for part MAX639CSA?
You can download the MAX639CSA datasheet or visit the MAXIM INTEGRATED / ANALOG DEVICES website for support.
Who is the manufacturer of MAX639CSA?
MAXIM INTEGRATED / ANALOG DEVICES