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.

BD900N1G-C屬于集成電路（IC） > 線性 + 開關穩(wěn)壓器。羅姆半導體集團制造生產的BD900N1G-C穩(wěn)壓器 - 線性線性穩(wěn)壓器用于提供穩(wěn)定的輸出電壓，無論負載電流、輸入電壓或環(huán)境因素如何變化，這些輸出電壓通常都要保持不變。它們的工作原理要求輸入電壓維持在高于所需的輸出電壓，而且要超出某個最小量，并且在工作時會將輸入端的任何多余電壓轉換為熱量。對于大多數(shù)應用而言，雖然這種穩(wěn)壓器的效率低于開關模式的穩(wěn)壓器，但它們通常更適合對噪聲高度敏感的應用。