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參數(shù)資料
| 型號(hào)： | LTC4558EUD |
| 廠商： | LINEAR TECHNOLOGY CORP |
| 元件分類： | 電源管理 |
| 英文描述： | 1-CHANNEL POWER SUPPLY SUPPORT CKT, PQCC20 |
| 封裝： | 3 X 3 MM, 0.75 MM HEIGHT, PLASTIC, QFN-20 |
| 文件頁(yè)數(shù)： | 5/12頁(yè) |
| 文件大?。?/td> | 146K |
| 代理商： | LTC4558EUD |
LTC4558
2
4558fa
PACKAGE/ORDER INFORMATION
ELECTRICAL CHARACTERISTICS
ABSOLUTE MAXIMUM RATINGS
VBATT, DVCC, DATA, RSTIN, CLKIN, CLKRUNA,
CLKRUNB, ENABLEA, ENABLEB, CSEL, VSELA,
VSELB to GND ............................................. –0.3V to 6V
I/OA, CLKA, RSTA ........................ –0.3V to VCCA + 0.3V
I/OB, CLKB, RSTB ........................ –0.3V to VCCB + 0.3V
ICCA,B (Note 4) .......................................................80mA
VCCA,B Short-Circuit Duration........................... Indenite
Operating Temperature Range (Note 3) ...–40°C to 85°C
Storage Temperature Range...................–65°C to 125°C
(Note 1)
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
Input Power Supply
VBATT Operating Voltage
●
2.7
5.5
V
IVBATT Operating Current
VCCA = 3V, VCCB = 0V, ICCA = 0μA
VCCA = 1.8V, VCCB = 0V, ICCA = ICCB = 0μA
●
65
100
μA
DVCC Operating Voltage
●
1.4
5.5
V
IDVCC Operating Current
●
615
μA
IDVCC Shutdown Current
●
0.1
1
μA
IVBATT Shutdown Current
DVCC = 0V
●
0.1
1
μA
SIM Card Supplies
VCCA,B Output Voltage
3V Mode, 0mA < ICCA,B < 50mA
1.8V Mode, 0mA < ICCA,B < 30mA
●
2.85
1.71
3.00
1.8
3.15
1.89
V
VCCA,B Turn-On Time
ICCA,B = 0mA, ENABLEA,B
to VCCA,B at 90% Selected Voltage
●
0.8
1.5
ms
Channel Switching Time
ENABLEA = ENABLEB = RSTIN = DVCC
CSEL
to RSTB
●
1μs
20 19 18 17 16
7
8
TOP VIEW
21
UD PACKAGE
20-LEAD (3mm
× 3mm) PLASTIC QFN
9
10
VCCB
DVCC
VBATT
VCCA
CLKA
CLKRUNB
CLKRUNA
CSEL
VSELA
ENABLEA
CLKB
RSTB
I/OB
ENABLEB
VSELB
RSTA
I/OA
DATA
RSTIN
CLKIN
12
11
13
14
15
4
5
3
2
1
6
TJMAX = 125°C, θJA = 68°C/W, θJC = 4.2°C/W
EXPOSED PAD (PIN 21) IS GND, MUST BE SOLDERED TO PCB
ORDER PART NUMBER
UD PART MARKING
LTC4558EUD
LCSH
Order Options Tape and Reel: Add #TR
Lead Free: Add #PBF Lead Free Tape and Reel: Add #TRPBF
Lead Free Part Marking: http://www.linear.com/leadfree/
Consult LTC Marketing for parts specied with wider operating temperature ranges.
The ● denotes the specications which apply over the full operating
temperature range, otherwise specications are at TA = 25°C. VBATT = 3.3V, DVCC = 1.8V, CA = CB = 1μF, unless otherwise specied.
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