BD733L05G-C
50mA, 3.3V, Fixed Output LDO Regulator for Automotive

The BD733L05G-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

 
Part Number | BD733L05G-CTR
Status | Recommended
Package | SSOP5
Packing Type | Taping
Unit Quantity | 3000
Minimum Package Quantity | 3000
RoHS | Yes
Product Longevity Program | 10 Years

Functional Safety:

Category : FS supportive
A product that has been developed for automotive use and is capable of supporting safety analysis with regard to the functional safety.

Specifications:

ch

1

Withstand Voltage (Max.)[V]

45

Vin(Min.)[V]

3.8

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]

0.18(Io=20mA)

Ripple Rejection [dB]

60

Load Regulation[mV]

3.3(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

Operating Temperature (Min.)[°C]

-40

Operating Temperature (Max.)[°C]

125

Common Standard

AEC-Q100 (Automotive Grade)

Find Similar

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.

Input Transient Response Characteristics of New Products
Comparison of Board Area for an Automotive Redundant Power Supply

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

Application Examples
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