TPS62237DRY
Compact step-down voltage regulators for efficient power conversion
Manufacturer： ti
series introduction
# TPS62237DRY Product Series Introduction
## 1. Overview
The TPS62237DRY is a highly efficient, low - quiescent current step - down (buck) converter integrated circuit (IC) offered by Texas Instruments. This product series is designed to meet the power management needs of a wide range of portable and battery - powered applications, where power efficiency, small form factor, and reliable performance are of utmost importance.
## 2. Key Features
### 2.1 High Efficiency
- The TPS62237DRY features a high - efficiency synchronous rectification topology. It can achieve conversion efficiencies of up to 96%. This high efficiency helps to minimize power losses during the conversion process, which is crucial for battery - powered devices as it extends the battery life. For example, in a portable media player, high efficiency means longer playback time between charges.
- The device operates in pulse - skip mode at light loads, which further enhances efficiency by reducing switching losses when the load current is low.
### 2.2 Low Quiescent Current
- With a very low quiescent current of typically 12 μA, the TPS62237DRY is well - suited for applications that require long standby times. In battery - powered devices such as wireless sensors or wearable devices, the low quiescent current ensures that the battery drains very slowly when the device is in standby mode, conserving power for when the device is actively in use.
### 2.3 Wide Input and Output Voltage Ranges
- The input voltage range of the TPS62237DRY is from 2.3 V to 6 V. This wide input voltage range allows it to be powered by a variety of sources, including single - cell lithium - ion batteries (which typically have a voltage range of 2.7 V - 4.2 V) and multi - cell alkaline or NiMH batteries.
- The output voltage can be adjusted from 0.8 V to 3.3 V, providing flexibility to power different types of loads, such as microcontrollers, sensors, and RF transceivers, which may require different supply voltages.
### 2.4 Small Form Factor
- The TPS62237DRY is available in a small 10 - pin VSON (Very Small Outline No - lead) package. This compact package size makes it ideal for space - constrained applications, such as smartwatches, earbud - style wireless headphones, and other portable consumer electronics. The small form factor also helps in reducing the overall size of the printed circuit board (PCB), which can lead to cost savings and more compact product designs.
### 2.5 Integrated Protection Features
- **Over - current Protection (OCP)**: The device is equipped with over - current protection to prevent damage to the IC and the load in case of a short - circuit or excessive load current. When the output current exceeds a certain threshold, the OCP mechanism limits the current to a safe level.
- **Thermal Shutdown**: Thermal shutdown protection is implemented to safeguard the device from overheating. If the junction temperature of the IC rises above a predefined limit, the device shuts down automatically, preventing damage due to excessive heat.
## 3. Applications
### 3.1 Portable Consumer Electronics
- **Smartphones and Tablets**: The TPS62237DRY can be used to power various subsystems within smartphones and tablets, such as the display backlight, audio amplifier, or camera module. Its high efficiency and small form factor make it a suitable choice for these space - and power - sensitive devices.
- **Wearable Devices**: In smartwatches, fitness trackers, and other wearable devices, the low quiescent current
Images for reference
DRY-6-SON Pkg
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