With the rapid development of smart wearable devices and portable tools, battery life has become a core pain point in user experience. Are the increasing number of functional modules and high overall power consumption still limiting your product design? Does frequent charging reduce the practical value of your end devices?
China's leader in analog and digital, Awinic, introduces a breakthrough solution—the new generation of ultra-low power consumption, ultra-small size Buck-Boost chip is officially launched!
It not only redefines power management efficiency but also provides enduring and reliable energy support for wearable devices, portable tools, and various smart terminals with extreme energy consumption control and stable output. Whether the device is in standby, light load, or high load operation, it can maintain efficient operation with ultra-low power consumption, fully unleashing the product's battery life potential.
As portable electronic products continue to pursue longer battery life and smaller sizes, every joule of energy is crucial. Awinic's power management chips, specifically developed for low-power applications, deliver unprecedented energy efficiency with ultra-low quiescent current and exceptional efficiency, making them ideal for space- and power-sensitive devices.
Figure 1 Input Current VS Input Voltage
Figure 2 Efficiency vs Output Current
Excellent Dynamic Response Characteristics: Key to Ensuring Accurate PPG Measurement
Therefore, the transient response speed and stability of the power supply circuit are critical to PPG performance. Awinic's AWP37701Z power management chip, with its excellent dynamic response capability, stabilizes the output voltage within 10μs after a load transient, effectively suppressing voltage fluctuations and noise, and significantly improving the accuracy and reliability of PPG signal acquisition. This chip provides solid power support for high-precision, low-power blood oxygen and heart rate monitoring in wearable devices.
Figure 3 Load Transient
Seamless Smooth Mode Switching: A New Benchmark for Power Supply Stability in Wearables
With its excellent mode-switching performance, this chip is widely applicable to various battery-powered electronic products, providing efficient and reliable power support for downstream circuits. It is particularly suitable for scenarios requiring absolute power stability under significant input voltage fluctuations, helping products achieve superior system performance.
Input Voltage Range: 2.2V ~ 5.5V
Output Voltage Range: 2.025V ~ 5.2V
Ultra-Low Quiescent Current: 2.8μA
Ultra-Low Shutdown Current: 0.3μA
Supports Dynamic Voltage Scaling Control (Slope: 1V/ms, 2.5V/ms, 5V/ms, 10V/ms)
Automatic PFM Mode and Forced PWM Mode Selection
I2C Interface up to 1MHz (I2C supports 1.2V I/O level)
Maximum Continuous Output Current:
VIN ≥ 2.2V, VOUT = 3.5V: IOUT up to 0.8A
VIN ≥ 2.5V, VOUT = 3.5V: IOUT up to 1A
VIN ≥ 3.3V, VOUT = 3.5V: IOUT up to 1.5A
Package: WLCSP 1.3mm x 1.3mm-9B
Figure 4: AWP37701Z Package Information
Figure 5: AWP37701Z Typical Application Diagram
Widely applicable to wearable devices, wireless earphone charging cases, smartphones, thermohygrometers, optical heart rate monitoring LED bias power supply, lithium battery or dual dry battery-powered products, and other applications with high requirements for power consumption, load transients, and size.
Figure 6: Application Scenarios
Buckboost
Table 1: Buckboost Product Selection Table
Buck
Table 2: Buck Product Selection Table
Boost
Table 3: Boost Product Selection Table
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