General Description

The BD9xxN1-C series are linear regulators using the

Nano CapTM topology (Note 1) designed as low current

consumption products for power supplies in various

automotive applications requiring a direct connection to the

battery.

These products are designed for up to 45 V as an absolute

maximum voltage and to operate until 150 mA for the

output current with low current consumption 28 μA (Typ).

These can regulate the output with a very high accuracy

±2.0 .

The output capacitor 100 nF (Typ) or more can be used for

this product series, and it can realize a brilliant transient

characteristic even with small capacitance.

The output voltage line-up are 3.3 V, 5.0 V and Adjustable

type by an external resistive divider. The output voltage

can be adjusted between 1.0 V and 18 V by an external

resistive divider connected to the ADJ pin.

Enable feature is integrated in the devices. A logical “HIGH”

at the EN pin turns on the device, and the devices are

controlled to disable by a logical “LOW” input to the EN pin

(Note 2).

The devices feature the integrated Over Current Protection

to protect the device from a damage caused by a shortcircuiting

or an overload. These products also integrate

Thermal Shutdown Protection to avoid the damage by

overheating and Under Voltage Lock Out to avoid false

operation at low input voltage.

Furthermore, low ESR ceramic capacitors are sufficiently

applicable for the phase compensation.

(Note 1) Nano Cap™ is a combination of technologies which allow stable

operation even if output capacitance is connected with the range of nF unit.

(Note 2) Applicable for product with Enable Function

Key Specifications

◼ Wide Temperature Range (Tj): -40 °C to +150 °C

◼ Wide Operating Input Range: 3 V to 42 V

◼ Output Voltage: 3.3 V / 5.0 V / Adjustable

◼ Low Current Consumption (Note 3): 28 μA (Typ)

◼ Output Current Capability: 150 mA

◼ High Output Voltage Accuracy (Note 4): ±2.0

(Note 3) It does not contain the current of external feedback resistance.

(Note 4) The effect of external feedback resistor is not included.

Features

◼ Nano CapTM Topology (Note 1)

◼ QuiCurTM Topology (Note 5)

◼ AEC-Q100 (Note 6)

◼ Automotive grade

◼ Over Current Protection (OCP)

◼ Thermal Shutdown Protection (TSD)

◼ Under Voltage Lock Out (UVLO)

(Note 5) QuiCurTM is a combination of technologies that provides

high-speed load response.

(Note 6) Grade 1

Applications

◼ Automotive (Power Train, Body ECU)

◼ Car Infotainment system, etc.

BD933N1WG-C属于集成电路（IC） > 线性 + 开关稳压器。罗姆半导体集团制造生产的BD933N1WG-C稳压器 - 线性线性稳压器用于提供稳定的输出电压，无论负载电流、输入电压或环境因素如何变化，这些输出电压通常都要保持不变。它们的工作原理要求输入电压维持在高于所需的输出电压，而且要超出某个最小量，并且在工作时会将输入端的任何多余电压转换为热量。对于大多数应用而言，虽然这种稳压器的效率低于开关模式的稳压器，但它们通常更适合对噪声高度敏感的应用。