Overview
The TPS61070DDCR from Texas Instruments is a highly efficient synchronous boost converter designed to provide a power supply solution for a variety of battery-powered products. This device is part of the TPS6107x family and is particularly suited for applications powered by one-cell, two-cell, or three-cell alkaline, NiCd or NiMH, or one-cell Li-ion or Li-polymer batteries. The TPS61070DDCR operates with a fixed frequency, pulse-width-modulation (PWM) controller and utilizes a synchronous rectifier to achieve high efficiency. It can deliver output currents up to 75 mA from a single-cell alkaline battery discharged down to 0.9 V, and it can also generate 5 V at 200 mA from a 3.3-V rail or a Li-ion battery.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Package | SOT-23-THN (DDC) | - |
| Pins | 6 | - |
| Operating Temperature Range | -40 to 125 | °C |
| Input Voltage Range | 0.9 to 5.5 | V |
| Output Voltage Range | 1.8 to 5.5 | V |
| Output Current at 3.3 V from 0.9 V Input | 75 mA | - |
| Output Current at 3.3 V from 1.8 V Input | 150 mA | - |
| Switch Current Limit | 600 mA | - |
| Quiescent Current | 19 µA (Typ) | - |
| Oscillator Frequency | 960 to 1440 kHz | - |
| Overtemperature Protection | 140 °C | - |
Key Features
- 90% Efficient Synchronous Boost Converter
- High output current capability: up to 75 mA at 3.3 V from a 0.9 V input
- Adjustable output voltage up to 5.5 V
- Power-save mode for improved efficiency at low output power
- Load disconnect during shutdown to minimize battery drain
- Overtemperature protection for reliability
- Small 6-pin Thin SOT23 package for compact designs
- Input voltage range from 0.9 V to 5.5 V
- Fixed frequency PWM controller with synchronous rectifier
Applications
- Portable audio players
- PDAs and handheld devices
- Cellular phones and mobile devices
- Personal medical products
- White LED lighting
- Battery-powered consumer electronics
Q & A
- What is the TPS61070DDCR used for?
The TPS61070DDCR is a synchronous boost converter used to provide a power supply solution for battery-powered products.
- What is the input voltage range of the TPS61070DDCR?
The input voltage range is from 0.9 V to 5.5 V.
- What is the maximum output current at 3.3 V from a 0.9 V input?
The maximum output current is 75 mA at 3.3 V from a 0.9 V input.
- Does the TPS61070DDCR have power-save mode?
- What is the package type of the TPS61070DDCR?
The package type is SOT-23-THN (DDC) with 6 pins.
- What is the quiescent current of the TPS61070DDCR?
The quiescent current is typically 19 µA.
- Does the TPS61070DDCR have overtemperature protection?
- How is the output voltage programmed in the TPS61070DDCR?
The output voltage is programmed by an external resistor divider.
- What happens to the load during shutdown?
The load is completely disconnected from the battery during shutdown.
- What is the typical oscillator frequency of the TPS61070DDCR?
The typical oscillator frequency is between 960 kHz and 1440 kHz.
