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TPS54331DDAR
IC REG BUCK ADJUSTABLE 3A 8SOPWR
- Manufacturer
- Mfr. Part #TPS54331DDAR
- Package HSOIC-8
- Datasheet
- In Stock6232
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Specifications
| Package | Tape & Reel (TR),Cut Tape (CT) |
| Series | Eco-Mode™ |
| ProductStatus | Active |
| Function | Step-Down |
| OutputConfiguration | Positive |
| Topology | Buck |
| OutputType | Adjustable |
| NumberofOutputs | 1 |
| Voltage-Input(Min) | 3.5V |
| Voltage-Input(Max) | 28V |
| Voltage-Output(Min/Fixed) | 0.8V |
| Voltage-Output(Max) | 25V |
| Current-Output | 3A |
| Frequency-Switching | 570kHz |
| SynchronousRectifier | No |
| OperatingTemperature | -40°C ~ 150°C (TJ) |
| MountingType | Surface Mount |
| Package/Case | 8-PowerSOIC (0.154, 3.90mm Width) |
Overview
Description
Key features of the TPS54331 include a fixed 570 kHz switching frequency, which allows for a compact solution with smaller external components. It also features a high-efficiency rating due to its low RDS(on) MOSFET and pulse-skipping Eco-mode for light-load efficiency. Protection features include overcurrent protection, thermal shutdown, and undervoltage lockout.
The TPS54331 is available in a space-saving 8-pin SOIC (Small Outline Integrated Circuit) package with a PowerPAD for improved thermal performance. This makes it an attractive choice for designers looking for a compact, efficient, and reliable DC-DC conversion solution.
Features
Key features include:
- High Efficiency: The device offers high efficiency, peaking around 95%, due to its low-resistance MOSFET.
- Adjustable Output Voltage: Users can set the output voltage as low as 0.8 V via an external resistor divider.
- Switching Frequency: It has a fixed switching frequency of 570 kHz, which allows the use of small external components.
- Current Mode Control: This feature provides fast transient response and simple loop compensation.
- Internal Compensation: Simplifies the design and improves stability.
- Low Dropout: Operates efficiently even at low dropout conditions.
- Protection Features: Includes over-current protection, thermal shutdown, and under-voltage lockout to enhance reliability.
- Compact Package: Available in a thermally enhanced SOIC-8 package.
These features make the TPS54331DDAR ideal for powering a wide range of microcontrollers, DSPs, and FPGAs.
Package
Pinout
1. BOOT: Bootstrap capacitor connection for the high-side FET driver.
2. VIN: Input voltage supply.
3. EN: Enable pin; a high signal enables the device.
4. SS/TR: Soft-start and tracking pin; used to set the soft-start time.
5. GND: Ground reference.
6. COMP: Compensation pin; used to stabilize the feedback loop.
7. VSENSE: Feedback voltage pin for output voltage regulation.
8. SW: Switch node; output of the internal high-side MOSFET.
This converter is commonly used in various applications, including consumer electronics, telecommunications, and industrial power systems, due to its compact size and efficient performance.
Manufacturer
Application
Equivalent
1. LM2596 - A popular step-down regulator by Texas Instruments.
2. MP2307 - A high-frequency step-down converter by Monolithic Power Systems.
3. LMR33630 - A synchronous buck converter by Texas Instruments.
4. APW7142 - A buck converter by Anpec Electronics.
5. RT8250 - A step-down converter by Richtek.
Always verify electrical characteristics and pin compatibility when selecting replacements.
Shipping
Shipping MethodsWe
offer global shipping services through DHL, FedEx, TNT, UPS, or any other forwarder of your choice.
Shipping Fee Reference (DHL/FedEx):
DHL: Shipping cost ranges from $25-$45 (0.5kg), with an estimated delivery time of 2-5 business days.
FedEx: Shipping cost ranges from $25-$40 (0.5kg), with an estimated delivery time of 3-7 business days.
UPS: Shipping cost ranges from $25-$45 (0.5kg), with an estimated delivery time of 3-7 business days.
TNT: Shipping cost ranges from $25-$65 (0.5kg), with an estimated delivery time of 3-7 business days.
EMS: Shipping cost ranges from $30-$50 (0.5kg), with an estimated delivery time of 7-15 business days.
Registered Air Mail: Shipping cost is $2-$4 (0.1kg), with an estimated delivery time of 5-20 business days.
Payments
Payment Methods
The Payment term is 100% Prepaid.
Currently, we only accept the below payment methods:
1. PayPal
2. Credit/ Debit Card
3. Wire Transfer
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