BD750L05G-C
50mA, 5.0V, Fixed Output LDO Regulator for Automotive
BD750L05G-C
50mA, 5.0V, Fixed Output LDO Regulator for Automotive
The BD750L05G-C linear regulator is designed as low current consumption products for power supplies in various automotive applications. This product is designed for up to 45V absolute maximum supply voltage and operate until 50mA output current with low current consumption of 6µA (Typ). It can regulate the output at a very high accuracy of ±2%. This device features an integrated Over Current Protection to keep the device from a damage that is caused by short-circuit or overload. This product also integrates a Thermal Shutdown protection to avoid the damage from overheating. Furthermore, low ESR ceramic capacitors are sufficiently applicable for the output phase compensation.
Product Detail
Functional Safety:
Specifications:
ch
1
Withstand Voltage (Max.)[V]
45
Vin(Min.)[V]
5.6
Vin(Max.)[V]
42
Iout(Max.)[A]
0.05
Vout Type
Fixed
Vout Accuracy
±2.0%
Circuit Current[mA]
0.006
Dropout Voltage (Typ.)[V]
0.26(Io=20mA)
Ripple Rejection [dB]
60
Load Regulation[mV]
5.0(Io=0.1mA to 50mA )
Output Capacitor[µF]
0.5
Shutdown Function
No
Thermal Shut-down
Yes
Over Current Protection
Yes
Over Voltage Protection
No
Under Voltage Lock Out
No
Discharge Function
No
Soft Start
No
Package
SSOP5
Reference Code
SOT23-5
Operating Temperature (Min.)[°C]
-40
Operating Temperature (Max.)[°C]
125
Common Standard
AEC-Q100 (Automotive Grade)
Features:
- AEC-Q100 Qualified(Grade 1)
- Qualification Planned for Automotive Application
- Over Current Protection(OCP)
- Thermal Shutdown Protection(TSD)
Supporting Information
Overview
The compact (2.9mm × 2.8mm) BD7xxL05G-C series meets key requirements for building redundant power supplies by providing high withstand voltage (Max.=45V) with low current consumption (6.0μA typ.).
At the same time, leveraging ROHM’s strengths in analog technology ensures stable output voltage even during steep battery voltage fluctuations. Unlike standard products with an overshoot of almost 1.3V that requires a large output capacitor to prevent the rated voltage of downstream devices such as sub-MCUs from being exceeded, ROHM LDOs limit voltage overshoot to just 0.1V, supporting much smaller output capacitors. Together with elimination of voltage clamping diode, this reduces board area by approximately 29% over general solutions while minimizing the number of additional circuits needed to configure redundant power supplies. High resistance to disturbance noise is also achieved (shown to eliminate output voltage fluctuation at all frequencies during ISO 11452-2 antenna irradiation testing), reducing the design load for noise countermeasures.
Application Examples
In addition to redundant power supplies, the space-saving low power consumption design makes them ideal for applications that operate when the engine is stopped.
Brake Systems
Electric Power Steering
ADAS ECUs
Drive Recorders
Body Control Modules
Battery Control Units
Real-Time Clocks
Door Handle Modules
Reference Design / Application Evaluation Kit
-
- Reference Design - REF68020
- 2.5kW LLC Converter, DC390Vin, 48Vout
LLC converters are power conversion circuits that utilize resonance phenomena, consisting of a primary-side excitation inductance, resonant inductor, resonant capacitor, switching element, and secondary-side rectifier circuit. By employing soft-switching technologies such as ZVS (Zero Voltage Switching) (primary-side switch) and ZCS (Zero Current Switching) (secondary-side switch), switching losses are significantly reduced, achieving high efficiency and low EMI by suppressing switching noise. They are applicable to a variety of power conversion circuits.
LLC converters that accept DC 400V input are used in applications where the DC voltage is converted from a commercial AC power input via a PFC (Power Factor Correction) and then converted to the voltage required by the system for distribution (server power supplies, industrial power supplies, PV hybrid inverters, ESS, UPS, xEV OBC (onboard charger), etc.), as well as for voltage conversion from the 400V battery of xEVs (xEV DC-DC converters, etc.). The secondary-side full-bridge rectifier circuit is a topology commonly used for relatively high power (up to several tens of kW) and relatively high output voltage (>48V).
This reference design is a DC 390V input, 48V output, 2.5kW LLC converter that incorporates Nuvoton Technology's high-resolution 32-bit MCU (KM1M7CF0) for power control and uses SiC MOSFETs as the primary switching element.
For more details about the board, please contact the following:
https://www.nuvoton.com/applications/power-energy/llc-reference-board/
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