company blog about Mingjiada Electronics Supply TI TPS610985 Synchronous Boost Converter With Integrated Load Switch

Mingjiada Electronics Supply TI TPS610985 Synchronous Boost Converter With Integrated Load Switch

With the rapid proliferation of wearable devices, IoT sensors and portable medical electronics, system designers today face a common challenge: how to achieve longer standby times whilst working within the constraints of limited battery capacity. Texas Instruments’ (TI) TPS610985 synchronous boost converter, with its typical quiescent current of just 60 nA and ultra-low start-up voltage of 0.7 V, provides an ideal power supply solution for low-power designs.

Shenzhen Mingjiada Electronics Co., Ltd. — Long-term supplier of the [TI] TPS610985 synchronous boost converter, featuring an ultra-low quiescent current of 300 nA, low-voltage start-up at 0.7 V, and integrated LDO/load switch, designed for BLE tags, wearables and low-power wireless devices.

Product Overview: A boost chip designed for ‘always-on, low-power systems’
The TI (Texas Instruments) TPS610985, part of the TPS61098x series, is a low-input-voltage, fixed 3V output synchronous boost converter with an integrated load switch, housed in a 1.5mm × 1.5mm 6-pin WSON (DSE) package.
Unlike models in the same series that integrate an LDO, the TPS610985 incorporates a load switch internally, thereby providing two independent output power rails: the main boost output, VMAIN, is always on and is responsible for powering the main system, such as the MCU; the load switch output, VSUB, is used to power peripherals such as sensors and wireless modules, and can be switched off via the MODE pin.
The TPS610985 features two modes controlled by the MODE pin: operating mode and low-power mode. In active mode, both outputs are enabled and offer enhanced response performance. In low-power mode, either the LDO or the load switch is disabled, disconnecting the peripherals. In low-power mode, the TPS610985 consumes only 300 nA of quiescent current and achieves up to 88 per cent efficiency under a 10 µA load.

Analysis of the TPS610985’s Key Features
The TPS610985 is a synchronous boost converter optimised for ultra-low-power applications, with key parameters that are highly competitive amongst similar products:
Ultra-low IQ of 300 nA in low-power mode
Start-up to load (at an input voltage of 0.7 V)
Operating input voltage range of 0.7 V to 4.5 V
Selectable output voltages up to 4.3 V
Minimum switching peak current limit of 350 mA
Integrated LDO/load switch
Two operating modes controlled by the MODE pin
Operating mode: both outputs are at their set values
Low-power mode: LDO/load switch disabled; boost converter continues to operate
Automatic bypass
Efficiency up to 88% when converting from 2 V to 3.3 V under a 10 µA load (low-power mode)
Efficiency up to 93% when converting from 2 V to 3.3 V under loads ranging from 5 mA to 100 mA
1.5 mm × 1.5 mm WSON package

Typical Applications
The TPS610985’s ultra-low quiescent current characteristics give it significant advantages in the following areas:
Smart remote control
BLE tags
Wearable applications
Low-power wireless applications
Portable consumer or medical products
Applications powered by a single button cell, or one or two alkaline batteries

In the field of low-power power management, the TPS610985 offers a combination of 60 nA quiescent current and an ultra-low start-up voltage of 0.7 V, providing a boost converter that delivers both performance and reliability for wearable and IoT devices. Mingjiada Electronics will continue to leverage its supply chain strengths to provide domestic customers with a stable supply and technical support for the TPS610985 and TI’s full range of power management chips, thereby helping to accelerate the commercialisation of innovative low-power products.

For the TPS610985 datasheet, quotations or to request samples, please visit the Mingjiada Electronics website (https://www.integrated-ic.com/) for further information.
Tags: TPS610985DSER, TPS610985DSE, TPS610985DS, TPS610985D, TPS61098