Datasheet > DA9231

DA9231

更新时间： 2023-12-20 18:45:43

品牌	Logo	应用领域
瑞萨 - RENESAS		集成电源管理电路
页数	文件大小	规格书
56页	2218K
描述
Nanopower PMIC for Low Power Connected Devices

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DA9231 数据手册

DA9231

Ultra-Low Quiescent Current Buck and LDO

General Description

DA9231 is an ultra-low quiescent current high efficiency buck regulator and an ultra-low quiescent

current LDO in a compact I²C configurable WLCSP package. It is targeting battery powered

applications needing highly efficient power supplies.

The buck regulator extends high light-load efficiency down to 10 µA 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.

DA9231 provides multiple protection features and comes with the ability to monitor the events and

indicators in the GPO pin.

Suitable for space constrained applications, the DA9231 comes in a 1.65 mm x 1.25 mm 12-pin

WLCSP package.

Key Features

■

300 mA buck regulator

■

100 mA LDO/Load Switch

□

750 nA total input current (buck enabled

no load, LDO disabled)

□

Ultra-low quiescent current

Input voltage 1.8 V to 5.5 V

Output voltage 0.7 V to 3.3 V

Up to 81% efficiency at 1.8 V output,

10 µA load current

■

I²C interface for device configuration and

control

Input voltage 2.5 V to 5.5 V (Minimum

2.75 V for start-up)

■

Protection features and System monitors

□

Output voltage 0.6 V to 1.9 V

Dynamic Voltage Control (DVC)

Small 1.65 mm x 1.25 mm, 12-pin WLCSP

package

Applications

■

Wearables – wrist wear, hearables

Smart devices - thermostats and door locks

Smoke detectors

■

Portable medical devices

Remote sensors

High efficiency, low power applications

Datasheet

Revision 2.6

13-Jun-2023

CFR0011-120-00 Rev 5

1 of 56

12 3 4 5 6 7...56

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