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Configurable, High-Efficiency PMIC 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 2-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 1
Linear Output Yes
Low-Noise/High PSRR Optimized Channels 1 DC/DC buck, 1 LDO
MOQ 4500
Output Current Max (A) 0.06
Output Voltage Range (V) 0.6 - 1.9
Outputs (#) 2
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 DA9233 is a high-efficiency, ultra-low quiescent current buck regulator and ultra-low quiescent current LDO in a compact I²C configurable WLCSP package. The buck regulator also features ultra-low output ripple (<10mV). It targets battery-powered applications needing low ripple and highly efficient power supplies.

The buck regulator extends high light-load efficiency down to 20μA further extending battery life. Dynamic Voltage Control (DVC) in the buck regulator facilitates optimization across the system power modes enabling further improvement in system efficiency and battery life.

The low quiescent current LDO can be configured as a load switch and provides the second supply output. The LDO’s uncommitted inputs can be connected to either the battery or the buck output. Connecting the input to the buck output provides the flexibility to improve the PSRR at the LDO output as needed.

DA9233 provides multiple protection features and comes with the ability to monitor the events and indicators in the GPO pin.

Benefits

  • <10mV output ripple exceeds requirements for powering GPS chipsets in wearable devices
  • Low quiescent current PMIC extends battery life
  • Integration of buck regulator and LDO reduces board area while providing the total solution for GPS chipsets
  • Dynamically programmable output voltage optimizes performance in operating modes and extends battery life in storage modes