BD3508MUV Series

3A Variable Output, High-Accuracy LDO Regulator

Catalog

3A Variable Output, High-Accuracy LDO Regulator

Part	Package / Case	Output Configuration	Current - Output	Supplier Device Package	Control Features	Protection Features	Voltage - Output (Max) [Max]	Voltage - Output (Min/Fixed)	Number of Regulators	Voltage Dropout (Max)	Mounting Type	Output Type	Voltage - Input (Max) [Max]
Rohm Semiconductor BD3508MUV-E2	20-VFQFN Exposed Pad	Positive	3 A	20-VQFN	Enable Soft Start	Over Current Over Temperature Under Voltage Lockout (UVLO)	2.7 V	0.65 V	1	0.1 V	Surface Mount	Adjustable	4.5 V

Catalog

3A Variable Output, High-Accuracy LDO Regulator

Description

The BD3508MUV ultra low-dropout linear chipset regulator operates from a very low input supply, and offers ideal performance in low input voltage to low output voltage applications. It incorporates a built-in N-MOSFET power transistor to minimize the input-to-output voltage differential to the ON resistance (RONMAX=100mO) level. By lowering the dropout voltage in this way, the regulator realizes high current output (Iomax=3.0A) with reduced conversion loss, and thereby obviates the switching regulator and its power transistor, choke coil, and rectifier diode. Thus, the BD3508MUV is designed to enable significant package profile downsizing and cost reduction. An external resistor allows the entire range of output voltage configurations between 0.65 and 2.7V, while the NRCS (soft start) function enables a controlled output voltage ramp-up, which can be programmed to whatever power supply sequence is required.