BD3508MUV
3A Variable Output, High-Accuracy LDO Regulator

The BD3508MUV ultra low-dropout linear chipset regulator operates from a very low input supply, and offers ideal performance in low input voltage to low output voltage applications. It incorporates a built-in N-MOSFET power transistor to minimize the input-to-output voltage differential to the ON resistance (RON MAX=100mO) level. By lowering the dropout voltage in this way, the regulator realizes high current output (Iomax=3.0A) with reduced conversion loss, and thereby obviates the switching regulator and its power transistor, choke coil, and rectifier diode. Thus, the BD3508MUV is designed to enable significant package profile downsizing and cost reduction. An external resistor allows the entire range of output voltage configurations between 0.65 and 2.7V, while the NRCS (soft start) function enables a controlled output voltage ramp-up, which can be programmed to whatever power supply sequence is required.

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* This is a standard-grade product.
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Product Detail

 
Part Number | BD3508MUV-E2
Status | Active
Package | VQFN020V4040
Packing Type | Taping
Unit Quantity | 2500
Minimum Package Quantity | 2500
RoHS | Yes

Specifications:

ch

1

Withstand Voltage (Max.)[V]

6

Vin(Min.)[V]

4.3

Vin(Max.)[V]

5.5

Iout(Max.)[A]

3

Vout Type

Adjustable

Vout Accuracy

±1.0% (Ta=25℃)

Circuit Current[mA]

0.7

Dropout Voltage (Typ.)[V]

0.065(Io=1A)

Load Regulation[mV]

0.5(Io=0 to 3A)

Output Capacitor[µF]

22

Shutdown Function

Yes

Thermal Shut-down

Yes

Over Current Protection

Yes

Over Voltage Protection

No

Under Voltage Lock Out

Yes

Discharge Function

Yes

Soft Start

Adjustable

Operating Temperature (Min.)[°C]

-10

Operating Temperature (Max.)[°C]

100

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Features:

・Internal high-precision reference voltage circuit (0.65V±1%)
・Built-in VCC under voltage lock out circuit (VCC=3.80V)
・NRCS (soft start) function reduces the magnitude of in-rush current
・Internal Nch MOSFET driver offers low ON resistance (65mΩ typ)
・Built-in current limit circuit (3.0A min)
・Built-in thermal shutdown (TSD) circuit
・Variable output (0.65 to 2.7V)
・Incorporates high-power VQFN020V4040 package : 4.0x4.0x0.9 (mm)
・Tracking function
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