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參數資料
型號: ADP5042ACPZ-2-R7
廠商: Analog Devices Inc
文件頁數: 6/32頁
文件大小: 1378K
描述: IC REG TRPL BCK/LINEAR 20LFCSP
標準包裝: 1
拓撲: 降壓(降壓)同步(1),線性(LDO)(2)
功能: 任何功能
輸出數: 3
頻率 - 開關: 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 驅動器:
帶監控器:
帶序列發生器:
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
供應商設備封裝: 20-LFCSP-WQ(4x4)
包裝: 標準包裝
其它名稱: ADP5042ACPZ-2-R7DKR
ADP5042
Data Sheet
 
Rev. A | Page 6 of 32
Parameter
Symbol
Conditions
Min
Typ
Max
Unit
Load Regulation
1
 
V
OUT2
/I
OUT2
V
OUT3
/I
OUT3
 
I
OUT2
,
 
V
OUT3
 = 1 mA to 200 mA
 
0.002
 
%/mA
 
 
I
OUT2
,
 
V
OUT3
 = 1 mA to 200 mA
 
 
0.0075
%/mA
 
 
TJ = 40癈 to +125癈
 
 
 
 
DROPOUT VOLTAGE
2
 
V
DROPOUT
 
V
OUT2
,
 
V
OUT3
 = 3.3 V
 
 
 
 
 
 
I
OUT2
,
 
I
OUT3
 = 10 mA
 
4
 
mV
 
 
IOUT2, IOUT3 = 10 mA, TJ = 40癈 to +125癈
 
 
5
mV
 
 
IOUT2, IOUT3 = 200 mA
 
60
 
mV
 
 
IOUT2, IOUT3 = 200 mA, TJ = 40癈 to +125癈
 
 
100
mV
ACTIVE PULL-DOWN
RPDLDO
EN2/EN3 = 0 V
 
600
 
?
START-UP TIME
T
START-UP
 
V
OUT2
,
 
V
OUT3
 = 3.3 V
 
85
 
CURRENT-LIMIT THRESHOLD
3
 
I
LIMIT
 
T
J
 = 40癈 to +125癈
335
470
 
mA
OUTPUT NOISE
OUTLDO2NOISE
10 Hz to 100 kHz, VIN3 = 5 V, VOUT3 = 3.3 V
 
123
 
礦 rms
 
 
10 Hz to 100 kHz, VIN3 = 5 V, VOUT3 = 2.8 V
 
110
 
礦 rms
 
 
10 Hz to 100 kHz, V
IN3
 = 5 V, V
OUT3
 = 1.5 V
 
59
 
礦 rms
 
OUT
LDO1NOISE
 
10 Hz to 100 kHz, V
IN2
 = 5 V, V
OUT2
 = 3.3 V
 
140
 
礦 rms
 
 
10 Hz to 100 kHz, V
IN2
 = 5 V, V
OUT2
 = 2.8 V
 
129
 
礦 rms
 
 
10 Hz to 100 kHz, VIN2 = 5 V, VOUT2 = 1.5 V
 
66
 
礦 rms
POWER SUPPLY REJECTION RATIO
PSRR
1 kHz, V
IN2
,
 
V
IN3
 = 3.3 V, V
OUT2, OUT3
 = 2.8 V,
IOUT = 100 mA
 
66
 
dB
 
 
100 kHz, VIN2, VIN3 = 3.3 V, VOUT2, VOUT3 = 2.8 V,
IOUT = 100 mA
 
57
 
dB
 
 
1 MHz, V
IN2
, V
IN3
 = 3.3 V, V
OUT2
,
 
V
OUT3
 = 2.8 V,
I
OUT
 = 100 mA
 
60
 
dB
 
1
 Based on an end-point calculation using 1 mA and 100 mA loads.
2
 Dropout voltage is defined as the input-to-output voltage differential when the input voltage is set to the nominal output voltage. This applies only for output
voltages above 2.3 V.
3
 Current-limit threshold is defined as the current at which the output voltage drops to 90% of the specified typical value. For example, the current limit for a 3.0 V
output voltage is defined as the current that causes the output voltage to drop to 90% of 3.0 V, or 2.7 V.
 
INPUT AND OUTPUT CAPACITOR, RECOMMENDED SPECIFICATIONS
Table 5.
Parameter
Symbol
Conditions
Min
Typ
Max
Unit
MINIMUM OUTPUT CAPACITANCE (BUCK)
1
 
CMIN1
TJ = 40癈 to +125癈
7
 
40
MINIMUM INPUT AND OUTPUT CAPACITANCE
2
 (LDO1, LDO2)     CMIN23
TJ = 40癈 to +125癈
0.70
 
 
CAPACITOR ESR
R
ESR
 
T
J
 = 40癈 to +125癈
0.001     
1
?
 
1
 The minimum output capacitance should be greater than 4.7 礔 over the full range of operating conditions. The full range of operating conditions in the application
must be considered during device selection to ensure that the minimum capacitance specification is met.
2
 The minimum input and output capacitance should be greater than 0.70 礔 over the full range of operating conditions. The full range of operating conditions in the
application must be considered during device selection to ensure that the minimum capacitance specification is met. X7R and X5R type capacitors are recommended,
Y5V and Z5U capacitors are not recommended for use with LDOs or the buck.
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