| Distributor | Stock | Pricing | MOQ | PKG | Lead Time | Date Code | On Order Quantity | On Order Delivery | |
|---|---|---|---|---|---|---|---|---|---|
|
3,500 pcs
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3500 pcs | On Request | 1 | On Request | On Request | On Request | On Request | On Request | |
|
58 pcs
|
58 pcs | On Request | 1 | On Request | On Request | 9924P/ | On Request | On Request |
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| Manufacturer Name | |
| Clock Sync | |
| Control Features | |
| Duty Cycle | |
| Duty Cycle (Max) | |
| Efficiency | |
| Frequency | |
| Function | |
| Mounting Type | |
| Number of Outputs | |
| Operating Temperature | |
| Output Configuration | |
| Output Phases | |
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| Output Type | |
| Output Voltage | |
| Quiescent Current | |
| Supplier Device Package | |
| Synchronous Rectifier | |
| Topology | |
| Voltage |
The MAX1649CSA is a BiCMOS, step-down DC-DC switching controller from Analog Devices, designed for high efficiency over a wide load range. It utilizes a unique current-limited pulse-frequency-modulated (PFM) control scheme, providing high efficiency at heavy loads while consuming only 100µA of supply current.
This controller accepts input voltages from 3V to 16V and offers an adjustable output voltage from 1.5V to the input voltage. It features a low dropout voltage of less than 0.3V at 500mA and a high switch duty cycle of up to 96.5%. The switching frequency can reach up to 300kHz, allowing for the use of miniature external components.
The MAX1649CSA is suitable for applications requiring high-efficiency step-down regulation, such as PDAs and battery-powered devices. It drives external P-channel MOSFETs for loads greater than 12.5W. The device is available in an 8-SOIC package and operates within a temperature range of 0°C to 70°C (TA).
Key electrical characteristics include over 90% efficiency for loads between 10mA and 1.5A, a maximum quiescent supply current of 100µA, and a maximum shutdown supply current of 5µA. The control features include an enable function.
| Qty | Low | High |
|---|---|---|
| 1+ | $0.78 | $0.78 |
Estimated market price range - modelled values for guidance only, not live distributor offers.
The input voltage range is 3V to 16V.
The output voltage is adjustable from 1.5V up to the input voltage.
The maximum switching frequency is 300kHz.
The efficiency is more than 90% for loads from 10mA to 1.5A.
The MAX1649CSA is available in an 8-SOIC surface mount package.
The operating temperature range is 0°C to 70°C.