BD3541NUV Datasheet | ROHM

Description The BD3540NUV, BD3541NUV low-voltage output linear 1ch series chipset regulator IC 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 (RON=200mΩ～ 400mΩ) level. By lowering the dropout voltage in this way, the regulator realizes high current output (Iomax=0.5A～1.0A) with reduced conversion loss, and thereby obviates the switching regulator and its power transistor, choke coil, and rectifier diode. Thus, the BD3540NUV, BD3541NUV are 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. - Features 1) High-precision voltage regulator(0.65V±1%) 2) Built-in VCC undervoltage lockout circuit 3) NRCS (soft start) function reduces the magnitude of in-rush current 4) Internal Nch MOSFET driver offers low ON resistance 5) Built-in current limit circuit 6) Built-in thermal shutdown (TSD) circuit 7) Variable output 8) Small package VSON010V3030 : 3.0×3.0×1.0(mm) 9) Tracking function - Applications Notebook puters, Desktop puters, LCD-TV, DVD, Digital appliances - Line-up It is available to select power supply voltage and maximum output voltage. Maximum Output Voltage Package Vcc=5V 0.5A 1.0A VSON010V3030 BD3540NUV BD3541NUV .rohm. © 2009 ROHM Co., Ltd. All rights reserved. 1/16 - Rev.B BD3540NUV, BD3541NUV Technical Note - Absolute maximum ratings ◎BD3540NUV, BD3541NUV Parameter Input Voltage 1 Input Voltage 2 Enable Input Voltage PGOOD Input Voltage Power Dissipation 1 Power Dissipation 2 Power Dissipation 3 Operating Temperature Range Storage Temperature Range Junction...