Part Details for RT9018B-18ZSP by Richtek Technology Corp
Results Overview of RT9018B-18ZSP by Richtek Technology Corp
- Distributor Offerings: (1 listing)
- Number of FFF Equivalents: (0 replacements)
- CAD Models: (Request Part)
- Number of Functional Equivalents: (0 options)
- Part Data Attributes: (Available)
- Reference Designs: (Not Available)
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RT9018B-18ZSP Information
RT9018B-18ZSP by Richtek Technology Corp is a Linear Regulator IC.
Linear Regulator ICs are under the broader part category of Power Circuits.
A power circuit delivers electricity in order to operate a load for an electronic device. Power circuits include transformers, generators and switches. Read more about Power Circuits on our Power Circuits part category page.
Price & Stock for RT9018B-18ZSP
| Part # | Distributor | Description | Stock | Price | Buy | |
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Quest Components | FIXED/ADJUSTABLE POSITIVE LDO REGULATOR, 0.35 V DROPOUT, PDSO8 | 2 |
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$2.7000 / $4.0500 | Buy Now |
Part Details for RT9018B-18ZSP
RT9018B-18ZSP CAD Models
RT9018B-18ZSP Part Data Attributes
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RT9018B-18ZSP
Richtek Technology Corp
Buy Now
Datasheet
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RT9018B-18ZSP
Richtek Technology Corp
Fixed/Adjustable Positive LDO Regulator, 0.8V Min, 5.15V Max, 0.35V Dropout, PDSO8, HALOGEN FREE AND ROHS COMPLIANT, PLASTIC, SOP-8
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| Pbfree Code | Yes | |
| Rohs Code | Yes | |
| Part Life Cycle Code | Active | |
| Ihs Manufacturer | RICHTEK TECHNOLOGY CORP | |
| Part Package Code | SOIC | |
| Package Description | HALOGEN FREE AND ROHS COMPLIANT, PLASTIC, SOP-8 | |
| Pin Count | 8 | |
| Reach Compliance Code | compliant | |
| ECCN Code | EAR99 | |
| HTS Code | 8542.39.00.01 | |
| Adjustability | FIXED/ADJUSTABLE | |
| Dropout Voltage1-Max | 0.35 V | |
| Dropout Voltage1-Nom | 0.21 V | |
| Input Voltage Absolute-Max | 6 V | |
| JESD-30 Code | R-PDSO-G8 | |
| Length | 4.9 mm | |
| Number of Functions | 1 | |
| Number of Terminals | 8 | |
| Operating Temperature TJ-Max | 125 °C | |
| Operating Temperature TJ-Min | -40 °C | |
| Output Current1-Max | 3 A | |
| Output Voltage1-Max | 5.15 V | |
| Output Voltage1-Min | 0.8 V | |
| Output Voltage1-Nom | 1.8 V | |
| Package Body Material | PLASTIC/EPOXY | |
| Package Code | HSOP | |
| Package Equivalence Code | SOP8,.25 | |
| Package Shape | RECTANGULAR | |
| Package Style | SMALL OUTLINE, HEAT SINK/SLUG | |
| Peak Reflow Temperature (Cel) | NOT SPECIFIED | |
| Regulator Type | FIXED/ADJUSTABLE POSITIVE SINGLE OUTPUT LDO REGULATOR | |
| Seated Height-Max | 1.753 mm | |
| Surface Mount | YES | |
| Terminal Form | GULL WING | |
| Terminal Pitch | 1.27 mm | |
| Terminal Position | DUAL | |
| Time@Peak Reflow Temperature-Max (s) | NOT SPECIFIED | |
| Width | 3.9 mm |
RT9018B-18ZSP Frequently Asked Questions (FAQ)
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Richtek provides a recommended PCB layout in their application note AND9133, which includes guidelines for thermal vias, copper pours, and component placement to minimize thermal resistance and ensure reliable operation.
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To ensure stable output voltage, it's essential to follow the recommended input capacitor selection, output capacitor selection, and feedback network design guidelines provided in the datasheet. Additionally, consider using a voltage supervisor or a power-on reset circuit to ensure the output voltage is stable during power-up and power-down sequences.
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While the datasheet doesn't specify a maximum allowable ripple voltage, a general rule of thumb is to keep the input capacitor ripple voltage below 10% of the input voltage to ensure reliable operation and minimize electromagnetic interference (EMI).
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While ceramic capacitors can be used as output capacitors, they may not be the best choice due to their limited capacitance and high equivalent series resistance (ESR). X5R or X7R ceramic capacitors with a minimum capacitance of 10uF and a maximum ESR of 100mΩ are recommended. However, electrolytic capacitors or tantalum capacitors with a higher capacitance and lower ESR may provide better performance and stability.
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The power dissipation of the RT9018B-18ZSP can be calculated using the formula: Pd = (Vin - Vout) x Iout + (Vin x Iq), where Vin is the input voltage, Vout is the output voltage, Iout is the output current, and Iq is the quiescent current. The quiescent current can be found in the datasheet.