The TPS62130RGTR is a high-performance synchronous step-down DC-DC converter launched by Texas Instruments (TI). Designed specifically for low-power, high-efficiency voltage conversion scenarios, it is widely used in portable electronic devices, industrial sensors, embedded systems, and other fields. Below is a detailed description of its core features and technical details:

Core Features

Wide Voltage Range and Flexible Output

Input Voltage (VIN): Supports 2.7V to 18V, compatible with lithium batteries (3.7V), lead-acid batteries (12V), and industrial standard power supplies (5V/12V), adapting to various power supply scenarios.

Output Voltage (VOUT): Programmable via external resistors, ranging from 0.8V to 16V, which can accurately match the power supply requirements of microcontrollers (MCUs), sensors, FPGAs, and other chips (e.g., 3.3V, 5V, 1.8V).

Output Current: Continuous output current up to 1A, with a peak current of 1.5A, meeting the power needs of low-to-medium power devices.

Efficient Energy Conversion

Synchronous rectification technology: Integrates high-side and low-side MOSFETs, eliminating the need for external Schottky diodes. Efficiency exceeds 85% at light loads (10mA) and reaches up to 95% at full load (1A), significantly reducing energy loss.

Automatic Pulse Frequency Modulation (PFM)/Pulse Width Modulation (PWM) switching: Automatically enters PFM mode at light loads to reduce switching losses; switches to PWM mode (fixed 600kHz switching frequency) at heavy loads to ensure output stability, balancing efficiency and ripple performance.

Compact Design and Low Noise

Small form factor package: Adopts a 16-pin VQFN package (3mm×3mm) with a small board footprint, suitable for space-constrained portable devices (e.g., smart wearables, handheld instruments).

Low output ripple: Ripple voltage as low as 10mV (typical) in PWM mode. External ceramic capacitors can further suppress noise, meeting the requirements of noise-sensitive circuits (e.g., RF modules, high-precision ADCs) that demand clean power supplies.

Comprehensive Protection Features

Over-Current Protection (OCP): When the output current exceeds the threshold (typically 1.8A), the converter enters hiccup mode to prevent damage from load short circuits or overloads.

Over-Temperature Protection (OTP): Automatically shuts down when the junction temperature exceeds 150°C and resumes operation after cooling, enhancing system reliability.

Under-Voltage Lockout (UVLO): Turns off the output when the input voltage is below the threshold (typically 2.4V), avoiding system abnormalities caused by excessively low power supply voltage.

Output Over-Voltage Protection (OVP): Prevents damage to load devices due to abnormal increases in output voltage.

Electrical Parameters (Typical Values, VIN=5V, VOUT=3.3V, TA=25°C)

Switching frequency: 600kHz (PWM mode)

Line regulation: 0.01%/V (VOUT=3.3V, VIN=3V to 16V)

Load regulation: 0.1% (IOUT=10mA to 1A)

Quiescent current: 18µA (operating mode), 1µA (shutdown mode)

Start-up time: 2ms

Package and Physical Characteristics

Package type: VQFN-16 (Very Thin Quad Flat No-Lead) with a pin pitch of 0.5mm and a package thickness of 0.8mm.

Operating temperature range: -40°C to +125°C, meeting the requirements of industrial-grade wide-temperature environments.

Pin functions: Includes pins for input voltage (VIN), output voltage (VOUT), enable (EN), feedback (FB), ground (GND), etc. The peripheral circuit requires only a few inductors and capacitors, simplifying design.

Application Fields

Portable electronic devices: Smartphone auxiliary power supplies, tablets, portable medical instruments (e.g., blood glucose meters).

Industrial and Internet of Things (IoT): Sensor nodes (temperature-humidity, pressure sensors), wireless modules (Wi-Fi, Bluetooth), peripheral circuits of PLCs (Programmable Logic Controllers).

Embedded systems: Power supplies for microcontrollers (e.g., STM32, MSP430), auxiliary power supplies for FPGAs/CPLDs, power supplies for memory modules (DDR).

Automotive electronics: In-vehicle sensors, peripheral circuits of infotainment systems (requires additional protection circuits to meet automotive specifications).