ADP1870ACPZ-0.6-R7 Integrated Circuits (ICs)

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The ADP1870ACPZ-0.6-R7 is a DCDC switching controller optimized for Point of Load (PoL) applications and features a monolithic, PWM-step-down-switching-controller circuit of low voltage transient. This DCDC controller IC is designed to supply power to Point of Load (PoL) applications and is available for use in cost-sensitive applications. The ADP1870ACPZ-0.6-R7 is a highly efficient, versatile and reliable DCDC Switching Controller.

Features and Benefits

The ADP1870ACPZ-0.6-R7 features a very small package size along with the following features:

• 700mA output current capability
• Up to 1500kHz switching frequency
• Excellent transient and load performance
• Accurate current-limit adjustment
• Internal soft start
• Programmable switching frequency
• Monotonic loop-response behavior
• Overvoltage protection option

These features and benefits make the ADP1870ACPZ-0.6-R7 the ideal DCDC Switching Controller solution for PoL applications.

Application Fields

The ADP1870ACPZ-0.6-R7 DCDC Switching Controller is designed for use in a wide range of Point of Load (PoL) applications in consumer, industrial, and automotive markets, such as lighting systems, motor drives and automotive powertrains, power tools, LED systems, drones and low voltage battery powered systems.

Working Principle

The working principle of the ADP1870ACPZ-0.6-R7 DCDC Switching Controller is to control the load in an efficient manner by using its sophisticated control mechanism, which gets its input from the feedback resistor voltage. This feedback voltage is compared to an internally generated reference voltage and is used to adjust the on-time in PWM mode. The output current limit is also internally set, which is adjustable according to the application requirement. The ADP1870ACPZ-0.6-R7 is designed to maintain an output voltage and current limit level in a given operating temperature range.

The ADP1870ACPZ-0.6-R7 can also operate in a peak current-limit mode, where the operation of the device is solely determined by the maximum output current level. When the output current approaches the current limit level, the device switches off and limits the output current to its programmed level; thus ensuring optimum and reliable output voltage, current and temperature accuracies.

The ADP1870ACPZ-0.6-R7 DCDC Switching Controller is capable of achieving excellent efficiency by utilizing its synchronous rectification (SR) technique. The SR technique is especially suitable for high power applications, and works by turning on the main FET switch and the synchronous rectifier switch together. This eliminates the reverse recovery losses associated with diode-only rectifier designs, offering significant savings in power dissipation and improved efficiency.

The ADP1870ACPZ-0.6-R7 also features internal overvoltage protection (OVP), which is enabled when the voltage on the feedback resistor exceeds a certain (programmable) limit. The OVP feature protects the circuit from high input voltage, thereby ensuring optimal reliability and performance of the application circuit.

Conclusion

The ADP1870ACPZ-0.6-R7 DCDC Switching Controller is a highly efficient and reliable solution for Point of Load (PoL) applications. It features a monolithic PWM-step down-switching controller circuit, excellent transient and load performance, accurate current-limit adjustment, internal soft start, programmable switching frequency, monotonic loop-response behavior, and optional overvoltage protection. This makes the ADP1870ACPZ-0.6-R7 a suitable solution for applications in consumer, industrial, and automotive markets.

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