TPS61090RSAR
High-efficiency adjustable boost converters for DC-DC step-up applications
Manufacturer： ['rochester', 'ti']
series introduction
# TPS61090RSAR Product Series Introduction
## 1. Overview
The TPS61090RSAR is a highly efficient and versatile integrated circuit (IC) product series designed by Texas Instruments. This series is specifically engineered for applications that require a compact, high - performance power management solution, especially in scenarios where boosting a low - voltage input to a higher - voltage output is necessary.
## 2. Key Features
### 2.1 High Efficiency
- The TPS61090RSAR features a high - efficiency synchronous boost converter topology. It can achieve efficiency levels of up to 96% under typical operating conditions. This high efficiency is crucial as it minimizes power loss during the voltage conversion process, which in turn reduces heat generation and extends the battery life in portable devices. For example, in a battery - powered handheld device, the high efficiency of this converter ensures that more of the battery's energy is used to power the device's functions rather than being wasted as heat.
### 2.2 Wide Input and Output Voltage Range
- **Input Voltage Range**: It can accept an input voltage ranging from 0.9 V to 5.5 V. This wide input voltage range makes it suitable for a variety of power sources, including single - cell lithium - ion batteries (which typically have an output voltage range of around 3 - 4.2 V), multiple - cell alkaline batteries (with a combined voltage of 1.5 V per cell), and USB power sources (which usually provide 5 V).
- **Output Voltage Range**: The output voltage can be adjusted from 2.7 V to 5.5 V. This flexibility allows the TPS61090RSAR to be used in different applications that require specific output voltages, such as powering LCD displays, RF modules, or other integrated circuits that operate at different voltage levels.
### 2.3 Low Quiescent Current
- The device has a very low quiescent current of only a few microamps (typically around 15 μA in shutdown mode). This low quiescent current is beneficial for battery - powered applications, as it reduces the standby power consumption. When the device is in standby or idle mode, the low quiescent current ensures that the battery drains at a very slow rate, thus increasing the overall battery life.
### 2.4 Small Package Size
- The TPS61090RSAR comes in a small, space - saving package, such as the 8 - pin VSSOP (Very - Small - Outline Package). This compact package is ideal for applications where board space is limited, such as in wearable devices, wireless earbuds, and other small - form - factor electronics. The small package size also allows for easy integration into existing circuit designs without taking up too much space on the printed circuit board (PCB).
### 2.5 Integrated Protection Features
- **Over - Current Protection (OCP)**: The device is equipped with over - current protection to prevent damage to the converter and the connected load in case of a short - circuit or excessive current draw. When the output current exceeds a certain threshold, the OCP mechanism kicks in and limits the current to a safe level, protecting the components from overheating and potential failure.
- **Over - Voltage Protection (OVP)**: Over - voltage protection ensures that the output voltage does not exceed a predefined safe level. If the output voltage rises above the set limit, the OVP circuit will take action to regulate the voltage and prevent damage to the connected devices.
## 3. Applications
### 3.1 Portable Devices
- **Smartphones and Tablets**: In smartphones and tablets, the TPS61090RSAR can be used to boost the battery voltage to power components such as the display backlight, which
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