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Configurable, High-Efficiency Buck Regulator for GPS Sub-Systems in Wearable Devices Requiring Ultra-Low Voltage Ripple

Package Information

CAD Model: View CAD Model
Pkg. Type: 12-WLCSP
Pkg. Code:
Lead Count (#): 12
Pkg. Dimensions (mm):
Pitch (mm): 0.4

Environmental & Export Classifications

Moisture Sensitivity Level (MSL) 1
Pb (Lead) Free Yes
ECCN (US) EAR99
HTS (US) 8542.39.0090

Product Attributes

Lead Count (#) 12
Carrier Type Tape & Reel
Moisture Sensitivity Level (MSL) 1
Pb (Lead) Free Yes
Country of Assembly TAIWAN
Country of Wafer Fabrication TAIWAN
Battery Interface No
Bus Voltage (Max) (V) 5.5
Function 1-ch PMIC
GPIOs (#) 1
Input Voltage (Max) (V) 5.5
Input Voltage (Min) (V) 2.5
Input Voltage Range (V) 2.5 - 5.5
Integrated Battery Charger No
Integrated step-down DC/DC Converter Channels (#) 1
LDOs 0
Linear Output No
Low-Noise/High PSRR Optimized Channels 1 DC/DC buck
MOQ 4500
Output Current Max (A) 0.06
Output Voltage Range (V) 0.6 - 1.9
Outputs (#) 1
Parametric Category Multi-Channel Power Management ICs (PMICs)
Pitch (mm) 0.4
Pkg. Type 12-WLCSP
Qty. per Reel (#) 4500
Step-up DC/DC converter Channels (#) 0
Switching Frequency (MHz) 1.5 - 1.5
Temp. Range (°C) -40 to +85°C
Total step-down DC/DC converter channels (#) 1
VIN Range (V) 2.5 - 5.5

Description

The DA9232 is a high-efficiency, ultra-low quiescent current and ultra-low output ripple buck regulator in a compact I2C configurable WLCSP package targeting battery-powered applications needing low ripple and highly efficient power supplies.

The battery life of these devices is significantly improved due to the low quiescent current delivered by DA9232 during operation and shutdown. Dynamic voltage control (DVC) in the buck regulator facilitates optimization across the system power modes enabling further improvement in system efficiency and battery life.

Benefits

  • <10mV output ripple exceeds requirements for powering GPS chipsets in wearable devices
  • Low quiescent current buck regulator extends battery life
  • Dynamically programmable output voltage optimizes performance in operating modes and extends battery life in storage modes