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TPS61021ADSGT
Switching Voltage Regulators 3-A Boost Converter with 0.5-V Ultra Low Input Voltage 8-WSON -40 to 125TPS61021ADSGT
Switching Voltage Regulators 3-A Boost Converter with 0.5-V Ultra Low Input Voltage 8-WSON -40 to 125
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製造商零件號 # : TPS61021ADSGT
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包裝/封裝: WSON-8
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零件狀態 : Active
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製造商: Texas Instruments
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產品分類 : Voltage Regulators - DC DC Switching Regulators
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TPS61021ADSGT 數據表
價格 (USD)
| 數量 | 單價 | 總價 |
|---|---|---|
| 1 | $1.133 | $1.13 |
| 10 | $0.984 | $9.84 |
| 30 | $0.902 | $27.06 |
| 250 | $0.753 | $188.25 |
| 500 | $0.713 | $356.50 |
| 1000 | $0.694 | $694.00 |
這些價格會受到市場波動的影響，需要提交報價才能取得最新價格。
詳細說明
The TPS61021A is a versatile power supply solution designed for portable and smart devices that are commonly powered by various types of batteries such as alkaline, NiMH, Li-Mn, or Li-ion. With the ability to deliver a stable 3.3-V voltage and up to 1.5-A current output even when the battery level drops to 1.8 V, this device ensures a continuous power supply for your devices. Its remarkable feature of operating with an input voltage as low as 0.5 V further enhances battery life, making it an efficient choice for prolonged usage
主要特徵
- Smart power IC for efficient design
- Wide input voltage range
- Tight regulation accuracy
- Low EMI and radiation
- Fast transient response
- Safe overcurrent protection
規格
以下是所選零件的基本參數，涉及零件的特性及其所屬類別。
| Topology | Boost | Vin (min) (V) | 0.5 |
| Vin (max) (V) | 4.4 | Vout (min) (V) | 1.8 |
| Vout (max) (V) | 4 | Switch current limit (typ) (A) | 4.3 |
| Type | Converter | Regulated outputs (#) | 1 |
| Switching frequency (min) (kHz) | 50 | Switching frequency (max) (kHz) | 2000 |
| Iq (typ) (mA) | 0.017 | Features | Bypass Mode Pass-through Mode, Enable, Light Load Efficiency, Load Disconnect, Synchronous Rectification |
| Duty cycle (max) (%) | 90 | Operating temperature range (°C) | -40 to 125 |
| Rating | Catalog |
Specification Comparison
數據表 PDF
數據表記錄了器件的特性、絕對最大額定值、應用等，這對於作為器件特定應用的整體指南大有裨益。
常見問題解答
What is TPS61021ADSGT?
The TPS61021ADSGT is a high-efficiency, synchronous boost converter IC (integrated circuit) designed by Texas Instruments. It is ideal for applications requiring step-up voltage conversion with high efficiency, such as battery-powered devices, portable equipment, and LED backlight drivers.
How Does TPS61021ADSGT Work?
The TPS61021ADSGT operates as a synchronous boost converter, which efficiently increases input voltage to a higher output voltage. It utilizes a synchronous rectification architecture to minimize power losses and maximize efficiency. The IC also features a pulse frequency modulation (PFM) control scheme for light load efficiency and a shutdown mode to conserve power during standby.
How Many Pins does TPS61021ADSGT have and What are the Functions of the Pinout Configuration?
The TPS61021ADSGT is housed in a 10-pin VSSOP (Very Small Outline Package) package. The pinout configuration includes:
- VOUT: Regulated output voltage pin.
- LX: Inductor connection pin.
- SW: Switching node pin for the internal power switch.
- PGND: Power ground connection pin.
- FB: Feedback pin for voltage regulation control.
- EN: Enable pin for turning the converter on and off.
- VIN: Input voltage pin.
- SS/TR: Soft start/tracking pin for controlling the start-up behavior.
- PGOOD: Power good indicator pin for output voltage monitoring.
- RT: Resistor connection pin for setting the switching frequency.
What are the Pros and Cons of TPS61021ADSGT?
Pros:
- High Efficiency: Achieves high efficiency, ideal for battery-powered applications.
- Synchronous Rectification: Minimizes power losses for improved power conversion efficiency.
- Compact Package: The VSSOP package is space-efficient, suitable for compact designs.
- Wide Input Voltage Range: Supports a wide input voltage range, enhancing versatility.
- Shutdown Mode: Features a shutdown mode for power conservation in standby.
Cons:
- External Components: May require additional external components for optimal performance in certain applications.
- Complexity: Synchronous converters may require careful consideration of layout and component selection for desired performance.
Are There Any Equivalents/Alternatives to TPS61021ADSGT for Recommendation?
- The TPS61220 from Texas Instruments is a similar synchronous boost converter with different features.
- Alternatives to the TPS61021ADSGT include the ADP1613 from Analog Devices and the MAX8566 from Maxim Integrated.
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