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4.3-5.5V 2.5A 1ch LDO - BD3506F

The BD3506F is an ultra-low dropout linear regulator for chipset that can achieve ultra-low voltage input to ultra-low voltage output. By using N-MOS FET for built-in power transistor, the regulator can be used at ultra-low I / O voltage difference up to voltage difference generated by ON resistor (RON = 120 m?). Because by reducing the I / O voltage difference, large current (Iomax = 2.5A) output is achieved and conversion loss can be reduced, switching power supply can be replaced. BD3506F does not need any choke coil, diode for rectification and power transistor which are required for switching power supply, total cost of the set can be reduced and compact size can be achieved for the set. Using external resistors, optional output from 0.65V to 2.5V can be set. In addition, since voltage output start-up time can be adjusted by using the NRCS terminal, it is possible to meet the power supply sequence of the set.

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* This product is a STANDARD grade product and not recommend for on-vehicle devices.
Part Number
Status
Package
Unit Quantity
Minimum Package Quantity
Packing Type
RoHS
BD3506F-E2 Active SOP8 2500 2500 Taping Yes
 
Specifications:
Grade Standard
Breakdown Voltage(Max.)[V] 7.0
ch 1
Vin(Min.)[V] 4.3
Vin(Max.)[V] 5.5
Vin 2ch[V] 1.2 to Vcc-1
Vout (Typ.) [V] 0.65 to 2.5
Vout Precision ±1.0
Iout(Max.)[A] 2.5
Thermal Shut-down Recover
Over Current Protection Yes
Under Voltage Lock Out Yes
Soft Start Variable
Operating Temperature (Min.)[°C] -10
Operating Temperature (Max.)[°C] 100
Features:
  • ・Built-in high-accuracy reference voltage circuit (0.65V±1%)
    ・Built-in VCC low input maloperation prevention circuit (Vcc = 4.15V)
    ・Reduced rush current by NRCS
    ・Built-in ultra-low on-resistor (120 mΩ typ) Nch Power MOSFET
    ・Built-in current limiting circuit (2.5A min)
    ・Built-in thermal shutdown circuit
    ・Output variable type (0.65-2.5V)
    ・Adoption of SOP8 package (BD3506F) : 5.0 x 6.2 x 1.5 (mm)
 
 
Technical Data
Application Note

Thermal Resistance

Application Note

Basics of Linear Regulators

Application Note

Linear Regulator Specifications

Application Note

Reverse Voltage Protection

Application Note

Simple Test Method for Estimating the Stability of Linear Regulators

Application Note

Table of resistance for output voltage setting on linear regulator Ics