AP7354D-33W5-7

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

The AP7354D-33W5-7 is a fixed-output low dropout regulator manufactured by Diodes Incorporated, providing a stable 3.3V output with a guaranteed maximum load current of 150mA. It operates within an input voltage range of 2.0V to 5.5V and features ultra-low quiescent current consumption of 0.25µA during active operation, dropping to 0.02µA in standby mode when the enable pin is deactivated. The device incorporates an integrated resistor network for precise voltage regulation, achieving an accuracy of ±1% at room temperature. It includes built-in output discharge functionality, short-circuit protection, and thermal shutdown mechanisms.

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

• Integrated output discharge circuitry that actively pulls down the output voltage upon disablement
• Ultra-low quiescent current design optimized for extending battery life in portable applications
• High output voltage accuracy maintained across specified operating temperature ranges
• Built-in enable control allowing precise power management and system state transitions

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

• Wearable electronics requiring extended battery longevity
• Sensor modules for Internet-of-Things (IoT) networks
• Wireless communication modules
• Battery-operated handheld devices
• Camera systems and image sensors

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

Verify the specific suffix 'D' indicates the inclusion of the internal output discharge feature, which distinguishes this variant from standard versions lacking this function. Confirm the 'W5' package designation corresponds to the SOT-25-5 form factor required for your PCB layout. Ensure the ordering code matches the exact 3.3V fixed output specification to avoid functional mismatches in regulated power rails.

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

Select this component when designing circuits that demand minimal static power consumption alongside reliable 3.3V regulation. The inclusion of the output discharge feature makes it suitable for systems requiring rapid power-down states or preventing back-feeding into disabled rails. Consider the SOT-25 package dimensions against available board space and verify compatibility with the required 150mA load capability.

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

This part belongs to the AP7354 series of ultra-low quiescent current LDO regulators produced by Diodes Incorporated. The series offers various fixed output voltages ranging from 1.1V to 4.5V and is available in multiple package options including SOT-23, SOT-25, and X2-DFN1010-4. The 'D' suffix specifically denotes variants equipped with an active output discharge mechanism for enhanced power management capabilities.

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

AP7354-33W5-7

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

What is the primary difference between the AP7354 and AP7354D series?

The AP7354D series includes an integrated active output discharge circuit that pulls the output voltage to ground when the device is disabled, whereas the standard AP7354 lacks this feature.

How does the enable pin function on the AP7354D-33W5-7?

Driving the EN pin high enables the regulator output, while pulling it low places the device into shutdown mode and activates the internal output discharge resistor.