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參數(shù)資料
型號: ADP5042ACPZ-2-R7
廠商: Analog Devices Inc
文件頁數(shù): 8/32頁
文件大小: 1378K
描述: IC REG TRPL BCK/LINEAR 20LFCSP
標(biāo)準(zhǔn)包裝: 1
拓?fù)洌?/td> 降壓(降壓)同步(1),線性(LDO)(2)
功能: 任何功能
輸出數(shù): 3
頻率 - 開關(guān): 3MHz
電壓/電流 - 輸出 1: 1.5V,800mA
電壓/電流 - 輸出 2: 1.8V,300mA
電壓/電流 - 輸出 3: 3.3V,300mA
帶 LED 驅(qū)動(dòng)器:
帶監(jiān)控器:
帶序列發(fā)生器:
電源電壓: 1.7 V ~ 5.5 V
工作溫度: -40°C ~ 125°C
安裝類型: 表面貼裝
封裝/外殼: 20-WFQFN 裸露焊盤,CSP
供應(yīng)商設(shè)備封裝: 20-LFCSP-WQ(4x4)
包裝: 標(biāo)準(zhǔn)包裝
其它名稱: ADP5042ACPZ-2-R7DKR
ADP5042
Data Sheet
 
Rev. A | Page 8 of 32
PIN CONFIGURATION AND FUNCTION DESCRIPTIONS
ADP5042
TOP VIEW
(Not to Scale)
NOTES
1. EXPOSED PAD SHOULD BE CONNECTED TO AGND.
2. NC = NO CONNECT. DO NOT CONNECT TO THIS PIN.
14
13
12
1
3
4
VOUT2
15  WSTAT
VIN2
WDI2
11  VOUT1
NC
VIN3
2
VOUT3
EN3
5
nRSTO
 
Figure 2. Pin ConfigurationView from Top of the Die
Table 8. Preliminary Pin Function Descriptions
Pin No.
Mnemonic    Description
1
NC
Do not connect to this pin.
2
VOUT3
LDO2 Output Voltage and Sensing Input.
3
VIN3
LDO2 Input Supply (1.7 V to 5.5 V).
4
EN3
Enable LDO2. EN3 = high: turn on LDO2; EN3 = low: turn off LDO2.
5
nRSTO
Open-Drain Reset Output, Active Low.
6
AVIN
Regulators Housekeeping and Supervisory Input Supply (2.3 V to 5.5 V).
7
VIN1
Buck Input Supply (2.3 V to 5.5 V).
8
SW
Buck Switching Node.
9
PGND
Dedicated Power Ground for Buck Regulator.
10
EN1
Enable Buck. EN1 = high: turn on buck; EN1 = low: turn off buck.
11
VOUT1
Buck Sensing Node.
12
WDI2
Watchdog 2 (Long Timeout) Refresh Input from Processor. Can be disabled only by factory option.
13
VIN2
LDO1 Input Supply (1.7 V to 5.5 V).
14
VOUT2
LDO1 Output Voltage and Sensing Input.
15
WSTAT
Open-Drain Watchdog Timeout Status. WSTAT = high: Watchdog 1 timeout or power-on reset; WSTAT = low:
Watchdog 2 timeout. Auto cleared after one second.
16
EN2
Enable LDO1. EN2 = high: turn on LDO1. EN2 = low: turn off LDO1.
17
MODE
Buck Mode. MODE = high: buck regulator operates in fixed PWM mode; MODE = low: buck regulator operates
in pulse skipping mode (PSM) at light load and in constant PWM at higher load.
18
WMOD
Watchdog Mode. WMOD = low: Watchdog 1 normal mode; WMOD = high: Watchdog 1 cannot be disabled by
a three-state condition applied on WDI1.
19
WDI1
Watchdog 1 Refresh Input from Processor. If WDI1 is in high-Z and WMOD is low, Watchdog 1 is disabled.
20
MR
 
Manual Reset Input, Active Low.
TP
AGND
Analog Ground (TP = Thermal Pad). Exposed pad should be connected to AGND.
 
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