参数资料
型号: LTC3860EUH#PBF
厂商: Linear Technology
文件页数: 2/36页
文件大小: 0K
描述: IC REG CTRLR BUCK PWM VM 32-QFN
标准包装: 73
系列: PolyPhase®
PWM 型: 电压模式
输出数: 2
频率 - 最大: 1.25MHz
占空比: 91.5%
电源电压: 3 V ~ 5 V
降压:
升压:
回扫:
反相:
倍增器:
除法器:
Cuk:
隔离:
工作温度: -40°C ~ 125°C
封装/外壳: 32-WFQFN 裸露焊盘
包装: 管件
产品目录页面: 1336 (CN2011-ZH PDF)

LTC3860
ABSOLUTE MAXIMUM RATINGS
(Note 1)
V CC Voltage .................................................. –0.3V to 6V
VINSNS Voltage ......................................... –0.3V to 30V
VSNSN Voltage ............................................ –0.3V to 2V
RUN Voltage ................................................ –0.3V to 6V
PIN CONFIGURATION
TOP VIEW
32 31 30 29 28 27 26 25
ISNS1P , ISNS1N,
V CC 1
24 RUN1
ISNS2P , ISNS2N ........................... –0.3V to (V CC + 0.1V)
All Other Voltages ......................... –0.3V to (V CC + 0.3V)
Operating Junction Temperature Range
(Note 3).................................................. –40°C to 125°C
Storage Temperature Range................... –65°C to 125°C
FB1 2
COMP1 3
VSNSOUT 4
VSNSN 5
VSNSP 6
COMP2 7
FB2 8
33
SGND
23 I LIM1
22 ISNS1P
21 ISNS1N
20 ISNS2N
19 ISNS2P
18 I LIM2
17 RUN2
9 10 11 12 13 14 15 16
UH PACKAGE
32-LEAD (5mm
5mm) PLASTIC QFN
T JMAX = 125°C, θ JA = 34°C/W
EXPOSED PAD (PIN 33) IS SGND, MUST BE SOLDERED TO PCB
ORDER INFORMATION
LEAD FREE FINISH
LTC3860EUH#PBF
LTC3860IUH#PBF
TAPE AND REEL
LTC3860EUH#TRPBF
LTC3860IUH#TRPBF
PART MARKING*
3860
3860
PACKAGE DESCRIPTION
32-Lead (5mm × 5mm) Plastic QFN
32-Lead (5mm × 5mm) Plastic QFN
TEMPERATURE RANGE
–40°C to 125°C
–40°C to 125°C
Consult LTC Marketing for parts speci?ed with wider operating temperature ranges. *The temperature grade is identi?ed by a label on the shipping container.
Consult LTC Marketing for information on non-standard lead based ?nish parts.
For more information on lead free part marking, go to: http://www.linear.com/leadfree/
For more information on tape and reel speci?cations, go to: http://www.linear.com/tapeandreel/
ELECTRICAL CHARACTERISTICS The l denotes the speci?cations which apply over the full operating
junction temperature range, otherwise speci?cations are at T A = 25°C (Note 3). V CC = 5V, V RUN1,2 = 5V, V FREQ = V CLKIN = 0V, V FB = 0.6V,
f OSC = 0.6MHz unless otherwise speci?ed.
SYMBOL
V CC
PARAMETER
Input Voltage Range
CONDITIONS
l
MIN
3.0
TYP
MAX
5.5
UNITS
V
V IN
V IN Range
V CC = 5V
l
3
24
V
I Q
Input Voltage Supply Current
Normal Operation
Shutdown Mode
UVLO
V RUN1,2 = 5V
V RUN1,2 = 0V
V CC < V UVLO
14
3.5
50
mA
μA
mA
V RUN
RUN Input Threshold
V RUN Rising
1.95
2.25
2.45
V
V RUN Hysteresis
250
mV
I RUN
RUN Input Pull-Up Current
V RUN1,2 = 2.4V
1.5
μA
V UVLO
Undervoltage Lockout Threshold
V CC Rising
l
3.0
V
V CC Hysteresis
100
mV
3860fc
2
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