参数资料
型号: LTC3528BEDDB#TRPBF
厂商: Linear Technology
文件页数: 2/18页
文件大小: 0K
描述: IC REG BOOST SYNC ADJ 1A 8DFN
标准包装: 2,500
类型: 升压(升压)
输出类型: 可调式
输出数: 1
输出电压: 1.6 V ~ 5.25 V
输入电压: 0.5 V ~ 5.5 V
PWM 型: 电流模式,混合
频率 - 开关: 1MHz
电流 - 输出: 1A
同步整流器:
工作温度: -40°C ~ 85°C
安装类型: 表面贴装
封装/外壳: 8-WFDFN 裸露焊盘
包装: 带卷 (TR)
供应商设备封装: 8-DFN(3x2)
LTC3528/LTC3528B
ABSOLUTE MAXIMUM RATINGS
(Note 1)
V IN Voltage ................................................... –0.3V to 6V
SW Voltage
DC............................................................ –0.3V to 6V
Pulsed < 100ns ........................................ –0.3V to 7V
SHDN , FB Voltage ........................................ –0.3V to 6V
V OUT ............................................................. –0.3V to 6V
PGOOD......................................................... –0.3V to 6V
Operating Junction Temperature Range
(Notes 2, 5) ............................................ –40°C to 125°C
Storage Temperature Range................... –65°C to 125°C
ORDER INFORMATION
PIN CONFIGURATION
TOP VIEW
SHDN 1 8 V IN
FB 2 7 SGND
9
PGOOD 3 6 PGND
V OUT 4 5 SW
DDB PACKAGE
8-LEAD (3mm × 2mm) PLASTIC DFN
T JMAX = 125°C, θ JA = 76°C/W (NOTE 6)
EXPOSED PAD (PIN 9) IS GND, MUST BE SOLDERED TO PCB
LEAD FREE FINISH
LTC3528EDDB#PBF
LTC3528BEDDB#PBF
TAPE AND REEL
LTC3528EDDB#TRPBF
LTC3528BEDDB#TRPBF
PART MARKING
LCYD
LDDG
PACKAGE DESCRIPTION
8-Lead (3mm × 2mm) Plastic DFN
8-Lead (3mm × 2mm) Plastic DFN
TEMPERATURE RANGE
–40°C to 125°C
–40°C to 125°C
Consult LTC Marketing for parts specified with wider operating temperature ranges.
Consult LTC Marketing for information on non-standard lead based finish parts.
For more information on lead free part marking, go to: http://www.linear.com/leadfree/
For more information on tape and reel specifications, go to: http://www.linear.com/tapeandreel/
ELECTRICAL CHARACTERISTICS The l denotes the specifications which apply over the specified operating
temperature range, otherwise specifications are at T A = 25°C (Note 2). V IN = 1.2V, V OUT = 3.3V, unless otherwise noted.
PARAMETER
Minimum Start-Up Voltage
CONDITIONS
I LOAD = 1mA
l
MIN
TYP
0.70
MAX
0.88
UNITS
V
Output Voltage Adjust Range
T A = 0°C to 85°C
l
1.7
1.6
5.25
5.25
V
V
Feedback Voltage
Feedback Input Current
Quiescent Current—Shutdown
Quiescent Current—Active
Quiescent Current—Burst
(Note 7)
V FB = 1.3V
V SHDN = 0V, Not Including Switch Leakage, V OUT = 0V
Measured on V OUT , Nonswitching (Note 4)
Measured on V OUT , FB > 1.230V
l
1.170
1.200
1
0.01
300
12
1.230
50
1
500
20
V
nA
μA
μA
μA
N-Channel MOSFET Switch Leakage Current V SW = 5V
0.1
10
μA
P-Channel MOSFET Switch Leakage Current
N-Channel MOSFET Switch On-Resistance
P-Channel MOSFET Switch On-Resistance
V SW = 5V, V OUT = 0V
0.1
0.175
0.250
10
μA
Ω
Ω
N-Channel MOSFET Current Limit
Current Limit Delay Time to Output
(Note 3)
l
1.0
1.5
60
A
ns
Maximum Duty Cycle
Minimum Duty Cycle
V FB = 1.15V
V FB = 1.3V
l
l
88
93
0
%
%
Frequency
l
0.7
1.0
1.3
MHz
3528fd
2
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