NCP693DMN12TCG

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Overview

The NCP693DMN12TCG is a fixed-output low-dropout linear regulator from onsemi, providing a nominal 1.2 V output with a maximum continuous current of 1 A. It operates within an input voltage range of 1.6 V to 6.5 V and features high accuracy with a typical line regulation of 0.1 %/V and load regulation up to 120 mV. The device incorporates PMOS technology for low quiescent current, thermal shutdown at 165 °C, and short-circuit protection. It includes an auto-discharge function for rapid turn-off and is housed in a UDFN-6 (1.8x2 mm) surface-mount package.

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Feature Summary

• Integrated PMOS power transistor architecture enables ultra-low supply current consumption during standby mode via the chip enable pin.
• Built-in auto-discharge circuitry ensures rapid output voltage decay when the device enters standby state.
• Comprehensive internal protection mechanisms include over-current limiting and thermal shutdown to safeguard against fault conditions.

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Applications

• Battery-powered portable instruments
• Hand-held electronic devices
• Camcorders and digital cameras
• Portable communication equipment

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Procurement Notes

Verify component authenticity through authorized distribution channels or direct manufacturer engagement. Confirm that the received parts match the specified marking codes and package dimensions. Ensure proper handling procedures are followed to prevent electrostatic discharge damage during storage and assembly processes.

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Selection Notes

Select this regulator for applications requiring a stable 1.2 V rail with high efficiency under light loads. The D-version suffix indicates the inclusion of the auto-discharge feature, which is critical for systems needing fast power-down times. Evaluate PCB copper area requirements to manage thermal dissipation effectively under maximum load conditions.

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Part Context

This component belongs to the NCP693 series of CMOS low-dropout voltage regulators designed for battery-operated electronics. The series offers various fixed output voltages and packages, with the DMN variant specifically featuring the auto-discharge capability. It serves as a power management solution for portable devices requiring efficient voltage regulation.

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Replacement Considerations

Direct substitutes within the same family include NCP693HMN12TCG, which lacks the auto-discharge feature but shares identical electrical characteristics and pinout. Other NCP693 variants with different output voltages may be considered if voltage levels can be adjusted externally, though pin compatibility remains consistent across the series.

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators FAQ

What is the specific function of the 'D' suffix in the part number?

The 'D' suffix denotes the version of the NCP693 that includes an integrated auto-discharge transistor. This feature actively pulls down the output voltage when the Enable (CE) pin is driven low, ensuring faster turn-off speeds compared to versions without this circuitry.

How does the device handle overload conditions?

The regulator incorporates built-in current limit circuits to protect against over-current events and thermal shutdown circuitry to disconnect the output if the junction temperature exceeds safe operating limits, typically around 165 °C.