AP7345D-2825RH4-7

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

The AP7345D-2825RH4-7 is a dual low dropout regulator from Diodes Incorporated, packaged in an X2-DFN1612-8 footprint. It provides two independent output channels with fixed voltages of 2.8V and 2.5V respectively. Each channel guarantees an output current of 300mA within an input voltage range of 1.7V to 5.25V. The device features high ripple rejection of 75dB at 1kHz and low output noise of 60µVrms across the 10Hz to 100kHz bandwidth. Quiescent current is specified as low as 50µA per channel.

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

• Dual-channel architecture with individual enable inputs for independent power control
• High ripple rejection ratio ensuring stable performance under noisy conditions
• Low output noise characteristics suitable for sensitive RF applications
• Integrated thermal shutdown and short-circuit protection mechanisms

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

• Smart Phone/PAD
• RF Supply
• Cameras
• Portable Video
• Wireless Communication

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

Verify the specific ordering suffix RH4-7 confirms the X2-DFN1612-8 package and tape-and-reel packaging format. Ensure the part number accurately reflects the required 2.8V and 2.5V output combination. Confirm RoHS compliance status if environmental regulations apply to your manufacturing process. Check datasheet revision history for any updates to electrical characteristics or pin assignments before finalizing procurement.

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

Select this component when designing circuits requiring two distinct regulated voltages from a single IC footprint. The dual enable pins allow for precise power sequencing or independent channel management. Consider the 300mA current capability against peak load requirements. Evaluate the 2.8V and 2.5V outputs against system rail specifications to ensure compatibility without additional regulation stages.

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

This device belongs to the AP7345D series of dual LDO regulators designed for low-power handheld communication equipment. It utilizes a CMOS process to achieve low quiescent current and high accuracy. The series offers various fixed output voltage combinations within the same package, allowing designers to optimize PCB space while maintaining high performance standards for portable electronics.

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

AP7345D-2818RH4-7

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

How does the enable pin function affect the regulator operation?

Driving the EN pin high enables the respective channel output, while pulling it low puts the regulator into shutdown mode. The pin must not be left floating.

What is the recommended capacitor configuration for stability?

A minimum 1μF ceramic capacitor is recommended on both the input and output sides. These capacitors should be placed as close as possible to the device pins to reduce impedance and ensure stability.