BD33C0AWFP
1A 3.3V, Fixed Output, High-Accuracy LDO Regulator

ROHM's LDO regulators continue the trend towards increasing miniaturization and greater power efficiency and are optimized for power supplies of all types. The broad lineup includes low saturation fixed output types in 1A/2A/0.3A ratings, models with different output voltages and packages, and units with/without a shutdown switch. In addition, overcurrent, thermal shutdown, and overvoltage protection circuits are integrated to prevent IC destruction due to output shorts, IC overload, and surges on the power supply line, respectively.

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Product Detail

 
Part Number | BD33C0AWFP-E2
Status | Recommended
Package | TO252-5
Unit Quantity | 2000
Minimum Package Quantity | 2000
Packing Type | Taping
RoHS | Yes

Specifications:

Grade

Standard

Breakdown Voltage(Max.)[V]

35.0

ch

1

Vin(Min.)[V]

4.3

Vin(Max.)[V]

26.5

Vout (Typ.) [V]

3.3

Vout Precision

±1.0

Iout(Max.)[A]

1.0

Circuit Current[mA]

0.5

Shutdown Function

Yes

Thermal Shut-down

Yes

Over Current Protection

Yes

I/O Voltage Difference (Typ.)[V]

0.4(Io=0.5A)

Ripple Rejection [dB]

55.0

Load Regulation[mV]

Vo x 0.01V(Io=5mA to 1A)

Operating Temperature (Min.)[°C]

-45

Operating Temperature (Max.)[°C]

105

Package Size

6.5x9.5 (t=2.5)

Features:

・Output current 1.0A
・Output voltage accuracy : ±1%
・Low saturation with PDMOS output
・Built-in Over Current Protection circuit (OCP)
・Built-in Thermal Shut Down circuit (TSD)
・Adoption of ceramic capacitors

Design Resources

 

Documents

Application Note

  • BDxxC0A, BDxxD0A Series PCB Layout

Technical Articles

Schematic Design & Verification

  • Basics of Linear Regulators
  • Linear Regulator Specifications
  • Reverse Voltage Protection
  • Power Source ON/OFF Characteristics for Linear Regulator
  • Simple Test Method for Estimating the Stability of Linear Regulators
  • Connecting LDOs in Parallel
  • Problem Situations: Power Supply Does Not Start
  • Power Supply Sequence Circuit with General Purpose Power Supply IC
  • Table of resistance for output voltage setting on linear regulator Ics
  • Suppression Method of Switching Noise Using Linear Regulator and Low Pass Filter
  • Measurement Method for Phase Margin with Frequency Response Analyzer (FRA)
  • Usage of SPICE Macromodel (for LDO)
  • BAxxCC0 Series Circuit Using a Ceramic Output Capacitor
  • Importance of Probe Calibration When Measuring Power: Deskew
  • Impedance Characteristics of Bypass Capacitor

Thermal Design

  • What Is Thermal Design
  • Basics of Thermal Resistance and Heat Dissipation
  • Method for Calculating Junction Temperature from Transient Thermal Resistance Data
  • Thermal Calculation for Linear Regulator
  • Thermal Resistance

Tools

Models

  • BD00C0AWFP-C SPICE Modeling Report
  • BD33C0AWFP PSPICE Model
  • Unencrypted SPICE Model (Inquiry Form)

2D/3D/CAD

  • TO252-5 Footprint / Symbol

Packaging & Quality

Package Information

  • Package Information
  • Anti-Whisker formation

Manufacturing Data

  • Factory Information

Environmental Data

  • UL94 Flame Classifications of Mold Compound
  • Compliance with the ELV directive
  • REACH SVHC Contained Report
  • RoHS Comission Delegated Directive

Export Information

  • The Export Control Order
  • Export Administration Regulations(EAR)