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High Voltage LDO Regulators - BD3575YHFP-M

BD357xYFP BD357xYHFP Series regulators feature a high withstand voltage (50V) and are suitable to use with onboard vehicle microcontrollers. They offer an output current of 500 mA while limiting the quiescent current to 30µA (Typ). With these devices, a ceramic capacitor may be used at the output for stable operation. The output tolerance is within ±2% over their operating temperature range (-40°C to+125°C). The short circuit protection is folded-type to minimize generation of heat during malfunction. These devices are developed to offer the most robust power supply design under harsh automotive environments. The BD357xYFP BD357xYHFP Series provide an ideal solution to lower current consumption as well as to simplify the use with battery direct-coupled systems.

Part Number
Status
Package
Unit Quantity
Minimum Package Quantity
Packing Type
RoHS
BD3575YHFP-MTR Active HRP5 2000 2000 Taping Yes
 
Specifications:
Grade Automotive
Breakdown Voltage(Max.)[V] 50.0
ch 1
Vin(Min.)[V] 4.5
Vin(Max.)[V] 36.0
Vout (Typ.) [V] 2.8 to 12
Vout Precision ±2.0%
Iout(Max.)[A] 0.5
Circuit Current[mA] 0.03
Shutdown Function Yes
Thermal Shut-down Yes
Over Current Protection Yes
I/O Voltage Difference (Typ.)[V] 0.25(Io=0.2A)
Ripple Rejection [dB] 55.0
Operating Temperature (Min.)[°C] -40
Operating Temperature (Max.)[°C] 125
Features:
  • ・Low-Saturation Voltage Type P-Channel DMOSOutput Transistors
    ・High Output Voltage Precision: ±2 %(lo = 200 mA)
    ・Low-ESR Ceramic Capacitors can be used as Output Capacitors.
    ・VCC Power Supply Voltage = 50 V
    ・Built-in Overcurrent
 
 
 
 
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Technical Data
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This application notes provide tables for each series so that it is easy to set the resistance value for the output voltage setting from various internal reference voltages VREF.

Thermal Resistance

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Basics of Linear Regulators

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Simple Test Method for Estimating the Stability of Linear Regulators

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Thermal Calculation for Linear Regulator

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Power Source ON/OFF Characteristics for Linear Regulator

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BAxxCC0 Series Circuit Using a Ceramic Output Capacitor

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Measurement Method for Phase Margin with Frequency Response Analyzer (FRA)

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Connecting LDOs in Parallel

Provides some hints on how to connect LDOs in parallel.