## 2.6V to 5.5V, 4A, 0.3MHz to 2.4MHz Synchronous Step-Down Converter - BD90541MUV-CThe BD90541MUV-C is a synchronous step-down converter which operates in current mode. It can operate with maximum frequency of 2.4 MHz, and can downsize external parts such as inductor. It can supply a maximum output current of 4A with built-in Pch and Nch output MOSFET. Output voltage and oscillation frequency can be adjusted by external resistors and can also be synchronized with an external clock.
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형명 | 상태 | 패키지 | 포장 수량 | 최소 포장 단위 | 포장 사양 | RoHS |
---|---|---|---|---|---|---|

BD90541MUV-CE2 | 공급중 | VQFN20SV4040 | 2500 | 2500 | Taping | Yes |

Grade | Automotive |

ch | 1 |

Integrated FET / Controller | Integrated FET |

Buck / Boost / Buck-Boost / Inverting | Buck |

Synchronous / Nonsynchronous | Nonsynchronous |

Vin1(Min.)[V] | 2.6 |

Vin1(Max.)[V] | 5.5 |

Vout1(Min.)[V] | 0.6 |

Vout1(Max.)[V] | 5.0 |

Iout1(Max.)[A] | 4.0 |

SW frequency(Max.)[MHz] | 2.4 |

Light Load mode | No |

EN | Yes |

PGOOD | Yes |

Operating Temperature (Min.)[°C] | -40 |

Operating Temperature (Max.)[°C] | 125 |

- AEC-Q100 Qualified
- Up to 2.4MHz movement
- Excellent Load Response by Current Mode Control
- Built-in Pch/Nch Output MOSFET.
- Frequency Synchronization with External Clock.
- Output Error Monitor Terminal (PGOOD Terminal)
- Adjustable Output Voltage and Oscillation Frequency by External Resistors.
- Built-in Self-Reset Type Overcurrent Protection.
- Built-in Output Overvoltage/Short Circuit Detection.
- Built-in Temperature Protection (TSD) and UVLO.

형명 | 제품 이름 | 패키지 | Datasheet | 유통 재고 |
---|---|---|---|---|

BD90521MUV-C | 2.6V to 5.5V, 2A, 0.3MHz to 2.4MHz Synchronous Step-Down Converter | VQFN20SV4040 | 구입 | |

BD90521EFV-C | 2.6V to 5.5V, 2A, 0.3MHz to 2.4MHz Synchronous Step-Down Converter | HTSSOP-B20 | 구입 |

**Capacitor Calculation for Buck converter IC**

This application note explains the calculation of external capacitor value for buck converter IC circuit.

**Inductor Calculation for Buck converter IC**

This application note covers the steps required in choosing the inductor and to calculate the value used in buck regulator IC circuits.

**Resistor Value Table to set Output Voltage of Buck Converter IC**

This Application Note offers reference table to easily set resistor values for output voltage with various internal reference voltages VREF.

**Thermal Resistance**

The definition and how to use thermal resistance and thermal characterization parameter of packages for ROHM’s integrated circuit are described in this application note.

**The Important Points of Multi-layer Ceramic Capacitor Used in Buck Converter circuit**

Using unmatched MLCC may not obtain required target characteristics for power supply circuit and may cause abnormal operation. This application note explains the important points while using MLCC.

**Calculation of Power Loss (Synchronous)**

This application note describes how to obtain the power loss required to calculate the temperature of a semiconductor device. Temperature control is important to ensuring product reliability.

**Thermal Resistance**

The definition and how to use thermal resistance and thermal characterization parameter of packages for ROHM’s integrated circuit are described in this application note.

**Considerations for Power Inductors Used for Buck Converters**

This application note explains the features and things to consider when shopping for power inductors.

**Snubber Circuit for Buck Converter IC**

In buck converter ICs, many high-frequency noises are generated at switch nodes. A snubber circuit provides one way of eliminating such harmonic noise. This application note explains how to set up the RC snubber circuits.

**Efficiency of Buck Converter**

This application note explains power loss factors and methods for calculating them. It also explains how the relative importance of power loss factors depends on the specifications of the switching power source.

**Measurement Method for Phase Margin with Frequency Response Analyzer (FRA)**

This application note introduces a method for easily measuring the phase margin with a Frequency Response Analyzer (FRA) made by NF Corporation.

**Part Explanation**

For ICs