TPS62903RPJR
Switching Voltage Regulators 3-V to 17-V, 3-A high-efficiency low-IQ buck converter in 1.5-mm × 2-mm QFN packageTPS62903RPJR
Switching Voltage Regulators 3-V to 17-V, 3-A high-efficiency low-IQ buck converter in 1.5-mm × 2-mm QFN package
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製造商零件號 # : TPS62903RPJR
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包裝/封裝: VQFNHR-9
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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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TPS62903RPJR 數據表
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詳細說明
Designed for efficiency, the TPS62903RPJR boasts a low quiescent current of only 30µA, ensuring minimal power loss during operation. Integrated power MOSFETs streamline the design process and save valuable board space, while features like a fixed 1.2MHz switching frequency, adjustable soft start, short-circuit protection, and thermal shutdown add extra layers of protection and control to your power system
主要特徵
- Ultra-low quiescent current
- High-speed switching frequency
- Precise output voltage control
- Advanced thermal shutdown protection
- Integrated overcurrent limiting
- Fully compliant with EN 50561-1 standard
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。
Vin (min) (V) | 3 | Vin (max) (V) | 17 |
Vout (min) (V) | 0.4 | Vout (max) (V) | 5.5 |
Iout (max) (A) | 3 | Iq (typ) (mA) | 0.004 |
Switching frequency (min) (kHz) | 1000 | Switching frequency (max) (kHz) | 2500 |
Features | Enable, Forced PWM, Light Load Efficiency, Output discharge, Power good, Soft Start Adjustable, Synchronous Rectification, Tracking, UVLO adjustable | Operating temperature range (°C) | -40 to 150 |
Rating | Catalog | Regulated outputs (#) | 1 |
Control mode | DCS-Control | Duty cycle (max) (%) | 100 |
Type | Converter |
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 TPS62903RPJR?
The TPS62903RPJR is a synchronous step-down DC-DC converter from Texas Instruments. It is designed for high efficiency power conversion in battery-powered applications, IoT devices, portable electronics, and other low-power systems.
How Does TPS62903RPJR Work?
The TPS62903RPJR operates by converting a higher input voltage to a lower output voltage with high efficiency. It utilizes a synchronous buck topology to regulate the output voltage, providing a stable power supply for electronic devices. The converter features a pulse-width modulation (PWM) control scheme and low-dropout mode for improved power efficiency.
How Many Pins does TPS62903RPJR have and What are the Functions of the Pinout Configuration?
The TPS62903RPJR is packaged in a compact 10-pin VQFN (Very Thin Quad Flat No-Lead) package. The pinout configuration includes:
- VIN: Input voltage pin.
- EN: Enable pin for turning the converter on/off.
- PGND: Power ground pin.
- SW: Switch node for inductor connection.
- FB: Feedback pin for output voltage regulation.
- AGND: Analog ground pin.
- SS/TR: Soft-start or tracking pin for output voltage ramp control.
- PGOOD: Power-good indicator output pin.
- LX: Inductor connection pin.
- VOUT: Output voltage pin.
What are the Pros and Cons of TPS62903RPJR?
Pros:
- High Efficiency: Provides high efficiency power conversion for extended battery life.
- Compact Size: Compact 10-pin VQFN package for space-constrained designs.
- Low Dropout Mode: Enables operation with low input-output voltage differentials.
- Adjustable Soft-Start: Soft-start feature for controlled output voltage ramp-up.
- Power-Good Indicator: Includes a power-good indicator for system monitoring.
Cons:
- Complexity: Synchronous buck converters may require careful consideration of layout and component selection.
- Temperature Sensitivity: Performance may be affected by temperature variations in some operating conditions.
- External Components: Additional external components may be needed for specific applications.
Are There Any Equivalents/Alternatives to TPS62903RPJR for Recommendation?
- The TPS62823 from Texas Instruments offers similar synchronous buck converter features in a different package.
- Alternatives to the TPS62903RPJR include the LT3973 from Analog Devices and the MP2315 from Monolithic Power Systems.
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