RP154L033B-E2

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

The RP154L033B-E2 is a CMOS-based dual low dropout regulator from the RP154x series, manufactured by Nisshinbo Micro Devices. It provides two independent fixed output voltages of 1.8 V and 2.9 V with a maximum output current of 300 mA per channel. The device operates within an input voltage range of 1.4 V to 5.25 V and features a typical supply current of 50 µA per regulator. It utilizes a DFN1216-8 package and includes built-in short-circuit current limit circuits for protection.

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

• Dual LDO architecture providing independent power rails in a compact footprint
• Integrated chip enable function to extend battery life through standby mode
• Built-in short-circuit current limit circuitry for enhanced reliability

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

• Power source for portable communication equipment
• Power source for battery-powered electrical appliances
• Power source for cameras, VCRs, and camcorders

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

Verify the specific output voltage combination (VR1: 1.8 V, VR2: 2.9 V) against system requirements before ordering. Confirm that the DFN1216-8 package dimensions align with the PCB layout. Ensure external capacitors meet the minimum capacitance and ESR specifications to maintain stability. Check RoHS compliance documentation if required for the target market.

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

Select this component when dual isolated outputs are needed from a single regulator IC. The DFN1216-8 package is suitable for high-density mounting applications. Consider the 50 µA supply current for battery-operated designs requiring extended standby times. Verify that the load current does not exceed the 300 mA limit per channel under all operating conditions.

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

This part belongs to the RP154x series of ultra-small dual LDO regulators. The 'L' suffix indicates the dual-input type configuration using the DFN1216-8 package. The 'B' suffix denotes the inclusion of an auto-discharge function at the off state. This series is designed to replace existing CMOS regulators with improved ripple rejection and transient response characteristics.

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

RP154N033B-E2 offers similar functionality but uses a SOT-23-6 package with a single input.