規格
| 屬性 | 價值 |
| Package / Case | Tape & Reel (TR),Cut Tape (CT) |
| Part Status | Active |
| Function | Step-Up/Step-Down |
| Output Configuration | Positive |
| Topology | Buck-Boost |
| Output Type | Adjustable |
| Number of Outputs | 1 |
| Voltage - Input (Min) | 1.8V |
| Voltage - Input (Max) | 5.5V |
| Voltage - Output (Min/Fixed) | 1.2V |
| Voltage - Output (Max) | 5.5V |
| Current - Output | 3.5A (Switch) |
| Frequency - Switching | 2.4MHz |
| Synchronous Rectifier | Yes |
| Operating Temperature | -40°C ~ 85°C (TA) |
| Mounting Type | Surface Mount |
概述
Description
TPS63020DSJT is TI’s compact, highly efficient synchronous buck-boost DC-DC converter for battery-powered devices. It can both step down and step up the input to maintain a regulated output as the battery voltage varies or when USB is applied. It supports a wide input range (about 1.8 V to 5.5 V) with a selectable fixed or adjustable output, suitable for Li‑ion or USB-powered apps.
Key features: integrated high- and low-side MOSFETs, automatic buck-boost operation, PWM with a low-power PFM-like mode at light load, enable control, and protections (cycle-by-cycle current limit, thermal shutdown, short-circuit protection). High efficiency across the load range.
Packaging: DSJT denotes TI’s package/temperature variant for this device. Typical use requires an external inductor and input/output capacitors per the datasheet. For detailed specs and a typical schematic, see the TPS63020 datasheet.
Key features: integrated high- and low-side MOSFETs, automatic buck-boost operation, PWM with a low-power PFM-like mode at light load, enable control, and protections (cycle-by-cycle current limit, thermal shutdown, short-circuit protection). High efficiency across the load range.
Packaging: DSJT denotes TI’s package/temperature variant for this device. Typical use requires an external inductor and input/output capacitors per the datasheet. For detailed specs and a typical schematic, see the TPS63020 datasheet.
Features
Here are the key features of the TPS63020DSJT (TI datasheet highlights):
- Buck-boost DC-DC converter with wide input range (suitable for battery-powered apps).
- Output configurable via feedback network (adjustable voltage range).
- High efficiency across load conditions; optimized for portable devices.
- Multi-mode control with Power Save (PWM/PSM) for better light-load efficiency.
- Enable input for easy shutdown and controlled startup.
- Protective functions: current limit, thermal shutdown, undervoltage lockout.
- Soft-start to minimize inrush and output overshoot.
- Quick transient response for varying loads.
- Small DSJT package (compact, suited for space-constrained designs).
- Operating temperature range suitable for consumer electronics.
Note: Exact voltage ranges, current capability, and package details are specified in the TPS63020 datasheet for the DSJT variant.
- Buck-boost DC-DC converter with wide input range (suitable for battery-powered apps).
- Output configurable via feedback network (adjustable voltage range).
- High efficiency across load conditions; optimized for portable devices.
- Multi-mode control with Power Save (PWM/PSM) for better light-load efficiency.
- Enable input for easy shutdown and controlled startup.
- Protective functions: current limit, thermal shutdown, undervoltage lockout.
- Soft-start to minimize inrush and output overshoot.
- Quick transient response for varying loads.
- Small DSJT package (compact, suited for space-constrained designs).
- Operating temperature range suitable for consumer electronics.
Note: Exact voltage ranges, current capability, and package details are specified in the TPS63020 datasheet for the DSJT variant.
Pinout
- Pin count: 8 pins (DSJT package, VSON-8)
- Function: Single-channel, high-efficiency synchronous buck (step-down) DC-DC regulator for portable/power-management applications.
- Function: Single-channel, high-efficiency synchronous buck (step-down) DC-DC regulator for portable/power-management applications.
Manufacturer
- Manufacturer: Texas Instruments (TI)
- Company type: American multinational semiconductor company that designs and manufactures analog and embedded processing devices used in a wide range of electronics.
- Company type: American multinational semiconductor company that designs and manufactures analog and embedded processing devices used in a wide range of electronics.
Application
TPS63020DSJT is a compact, high‑efficiency buck–boost regulator ideal for battery-powered designs. Common application areas include:
- Portable/mobile devices (wearables, handheld meters, smartphones) needing a stable rail from a wide input range
- IoT/sensor nodes and remote monitoring powered by single or multiple cells
- USB-powered accessories and chargers requiring efficient regulation
- Energy-harvesting or backup-power applications with variable source voltages
- Medical portable instruments and consumer electronics demanding small size and low quiescent current
- System power rails for microcontrollers/SoCs in space-constrained environments
- Portable/mobile devices (wearables, handheld meters, smartphones) needing a stable rail from a wide input range
- IoT/sensor nodes and remote monitoring powered by single or multiple cells
- USB-powered accessories and chargers requiring efficient regulation
- Energy-harvesting or backup-power applications with variable source voltages
- Medical portable instruments and consumer electronics demanding small size and low quiescent current
- System power rails for microcontrollers/SoCs in space-constrained environments
Package
TPS63020DSJT uses an 8-pin VSON package (3.0 x 3.0 mm) with an exposed pad (VSON-8, EP).
