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PCA9421BSZ中文資料恩智浦?jǐn)?shù)據(jù)手冊PDF規(guī)格書

PCA9421BSZ
廠商型號

PCA9421BSZ

功能描述

Power management IC for low-power microcontroller applications

文件大小

856.55 Kbytes

頁面數(shù)量

66

生產(chǎn)廠商 NXP Semiconductors
企業(yè)簡稱

nxp恩智浦

中文名稱

恩智浦半導(dǎo)體公司官網(wǎng)

原廠標(biāo)識
數(shù)據(jù)手冊

下載地址一下載地址二到原廠下載

更新時間

2025-5-1 23:00:00

人工找貨

PCA9421BSZ價格和庫存,歡迎聯(lián)系客服免費人工找貨

PCA9421BSZ規(guī)格書詳情

1 General description

The PCA9421 is a highly integrated Power Management IC (PMIC), targeted to provide a full power

management solution for low-power microcontroller applications or other similar applications.

The device also integrates two step-down (buck) DC-DC converters which have I2C programmable output voltage. Both buck regulators have integrated high-side and low-side switches and related control circuitry, to minimize the external component counts; a Pulse-Frequency Modulation (PFM) approach is utilized to achieve better efficiency under light load condition. Other protection features such as overcurrent protection, undervoltage lockout (UVLO), etc., are also provided. By default, the input for these regulators is powered by either VIN or VIN_AUX, whichever is greater.

In addition, two on-chip LDO regulators are provided to power up various voltage rails in the system. Other features such as Fm+ I2C-bus interface, chip enable, interrupt signal, etc. are also provided. The chip is offered in 2.09 mm x 2.09 mm, 5 x 5 bump, 0.4 mm pitch WLCSP package; and 3 mm x 3 mm, 24-pin QFN package.

2 Features and benefits

? Two step-down DC-DC converters

– Very low quiescent current

– Programmable output voltage

– SW1: core buck converter, 0.5 V to 1.5 V output, 25 mV/step, and a fixed 1.8 V, up to 250 mA

– SW2: system buck converter, 1.5 V to 2.1 V/2.7 V to 3.3 V output, 25 mV/step, up to 500 mA

– Low-power mode for extra power saving

? Two LDOs

– Programmable output voltage regulation

– LDO1: always-on LDO, 1.70 V to 1.90 V output, 25 mV/step, up to 1 mA

– LDO2: system LDO, 1.5 V to 2.1 V/2.7 V to 3.3 V output, 25 mV/step, up to 250 mA

? 1 MHz I2C-bus target interface

? -40 °C to +85 °C ambient temperature range

? Offered in 5 x 5 bump-array WLCSP and 24-pin QFN package

3 Applications

? Low power microcontroller application

? Direct powered IoT and consumer

供應(yīng)商 型號 品牌 批號 封裝 庫存 備注 價格
MITEL
24+
NA/
3282
原廠直銷,現(xiàn)貨供應(yīng),賬期支持!
詢價
NXP(恩智浦)
24+
XQFN16(2.2x2.8)
7350
現(xiàn)貨供應(yīng),當(dāng)天可交貨!免費送樣,原廠技術(shù)支持!!!
詢價
MITEL
24+
QFP
80000
只做自己庫存,全新原裝進口正品假一賠百,可開13%增
詢價
NXP(恩智浦)
23+
NA
6000
原裝現(xiàn)貨訂貨價格優(yōu)勢
詢價
NXP(恩智浦)
23+
標(biāo)準(zhǔn)封裝
6000
正規(guī)渠道,只有原裝!
詢價
QFP
24+
6000
30
詢價
NXP
24+
BGA
56000
公司進口原裝現(xiàn)貨 批量特價支持
詢價
NXP USA Inc
23+/24+
24-VFQFN
8600
只供原裝進口公司現(xiàn)貨+可訂貨
詢價
恩智浦
22+
NA
500000
萬三科技,秉承原裝,購芯無憂
詢價
NXP
21+
56-HVQFN
2000
一級代理,專注軍工、汽車、醫(yī)療、工業(yè)、新能源、電力
詢價