参数资料
型号: LT3463AEDD
厂商: Linear Technology
文件页数: 2/8页
文件大小: 0K
描述: IC REG INV ADJ 0.25A DL 10DFN
标准包装: 121
类型: 反相
输出类型: 可调式
输出数: 2
输出电压: 1.25 V ~ 40 V
输入电压: 2.4 V ~ 15 V
电流 - 输出: 250mA
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: 10-WFDFN 裸露焊盘
包装: 管件
供应商设备封装: 10-DFN(3x3)
LT3463/LT3463A
ABSOLUTE
(Note 1)
AXI U RATI GS
PACKAGE/ORDER I FOR ATIO
3
V IN
8 SHDN2
V IN , SHDN1, SHDN2 Voltage ................................... 15V
SW1, SW2, V OUT1 Voltage ....................................... 42V
D2 Voltage ............................................................. –42V
FB1, FB2 Voltage Range .............................. –0.3V to 2V
Junction Temperature ........................................... 125 ° C
Operating Ambient Temperature Range
(Note 2) .............................................. – 40 ° C to 85 ° C
Storage Temperature Range ................. – 65 ° C to 125 ° C
TOP VIEW
V OUT1 1 10 FB1
SW1 2 9 SHDN1
11
SW2 4 7 V REF
D2 5 6 FB2
DD PACKAGE
10-LEAD (3mm × 3mm) PLASTIC DFN
T JMAX = 125 ° C, θ JA = 43 ° C/W, θ JC = 3 ° C/W
EXPOSED PAD (PIN 11) IS GND
AND MUST BE SOLDERED TO PCB
ORDER PART
NUMBER
LT3463EDD
LT3463AEDD
DD PART MARKING
LAFC
LBJK
Consult LTC Marketing for parts specified with wider operating temperature ranges.
ELECTRICAL CHARACTERISTICS The q denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at T A = 25 ° C. V IN = 2.5V, V SHDN = 2.5V unless otherwise noted.
PARAMETER
Minimum Input Voltage
Total Quiescent Current
Shutdown Current
CONDITIONS
For Both Switchers, Not Switching
V SHDN1 = V SHDN2 = 0V
MIN
TYP
2.2
40
0.1
MAX
2.4
60
1
UNITS
V
μ A
μ A
V REF Pin Voltage
V REF Pin Voltage Line Regulation
FB1 Comparator Trip Voltage
With 124k ? to GND
With 124k ? to GND
High to Low Transition
q
q
1.23
1.225
1.25
0.05
1.25
1.27
0.10
1.275
V
%/V
V
FB1 Comparator Hysteresis
8
mV
FB1 Line Regulation
2.5V < V IN < 15V
0.05
0.10
%/V
FB1 Pin Bias Current (Note 3)
V FB1 = 1.3V
q
20
50
nA
FB2 Comparator Trip Voltage
Low to High Transition
q
0
3
12
mV
FB2 Comparator Hysteresis
8
mV
FB2 Line Regulation (V REF – V FB2 )
2.5V < V IN < 15V
0.05
0.10
%/V
FB2 Pin Bias Current (Note 4)
SW1 Switch Off Time
SW2 Switch Off Time
Switch V CESAT (SW1, SW2)
Switch Current Limit (SW1)
V FB2 = –0.1V
V OUT1 – V IN = 4V
V OUT1 – V IN = 0V
V FB2 < 0.1V
V FB2 = 1V
I SW = 150mA
q
180
20
300
1.5
300
1.5
180
250
50
320
nA
ns
μ s
ns
μ s
mV
mA
Switch Current Limit (SW2)
Swith Leakage Current (SW1, SW2)
Schottky Forward Voltage (V OUT1 , D2)
LT3463
LT3463A
Switch Off, V SW = 42V
I D = 150mA
180
320
250
400
0.01
750
320
460
1
mA
mA
μ A
mV
Schottky Reverse Leakage Current
SHDN1 Pin Current
SHDN2 Pin Current
SHDN1/SHDN2 Start-Up Threshold
V OUT1 – V SW = 42V
V D2 = –42V
V SHDN1 = 2.5V
V SHDN2 = 2.5V
0.3
1
1
4
4
1
5
5
10
10
1.5
μ A
μ A
μ A
μ A
V
Note 1: Absolute Maximum Ratings are those values beyond which the life
of a device may be impaired.
Note 2: The LT3463/LT3463A are guaranteed to meet performance
specifications from 0 ° C to 70 ° C. Specifications over the –40 ° C to 85 ° C
operating ambient temperature range are assured by design,
characterization and correlation with statistical process controls.
Note 3: Bias current flows into the FB1 pin.
Note 4: Bias current flows out of the FB2 pin.
3463f
2
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LT3463AEDD#PBF 功能描述:IC REG INV ADJ 0.25A DL 10DFN RoHS:是 类别:集成电路 (IC) >> PMIC - 稳压器 - DC DC 开关稳压器 系列:- 标准包装:250 系列:- 类型:降压(降压) 输出类型:固定 输出数:1 输出电压:1.2V 输入电压:2.05 V ~ 6 V PWM 型:电压模式 频率 - 开关:2MHz 电流 - 输出:500mA 同步整流器:是 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:6-UFDFN 包装:带卷 (TR) 供应商设备封装:6-SON(1.45x1) 产品目录页面:1032 (CN2011-ZH PDF) 其它名称:296-25628-2
LT3463AEDD#TR 功能描述:IC REG INV ADJ 0.25A DL 10DFN RoHS:否 类别:集成电路 (IC) >> PMIC - 稳压器 - DC DC 开关稳压器 系列:- 标准包装:2,500 系列:- 类型:升压(升压) 输出类型:可调式 输出数:1 输出电压:1.24 V ~ 30 V 输入电压:1.5 V ~ 12 V PWM 型:电流模式,混合 频率 - 开关:600kHz 电流 - 输出:500mA 同步整流器:无 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:8-SOIC(0.154",3.90mm 宽) 包装:带卷 (TR) 供应商设备封装:8-SOIC
LT3463AEDD#TRPBF 功能描述:IC REG INV ADJ 0.25A DL 10DFN RoHS:是 类别:集成电路 (IC) >> PMIC - 稳压器 - DC DC 开关稳压器 系列:- 标准包装:2,500 系列:- 类型:升压(升压) 输出类型:可调式 输出数:1 输出电压:1.24 V ~ 30 V 输入电压:1.5 V ~ 12 V PWM 型:电流模式,混合 频率 - 开关:600kHz 电流 - 输出:500mA 同步整流器:无 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:8-SOIC(0.154",3.90mm 宽) 包装:带卷 (TR) 供应商设备封装:8-SOIC
LT3463EDD 功能描述:IC REG INV ADJ 0.25A DL 10DFN RoHS:否 类别:集成电路 (IC) >> PMIC - 稳压器 - DC DC 开关稳压器 系列:- 标准包装:2,500 系列:- 类型:升压(升压) 输出类型:可调式 输出数:1 输出电压:1.24 V ~ 30 V 输入电压:1.5 V ~ 12 V PWM 型:电流模式,混合 频率 - 开关:600kHz 电流 - 输出:500mA 同步整流器:无 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:8-SOIC(0.154",3.90mm 宽) 包装:带卷 (TR) 供应商设备封装:8-SOIC
LT3463EDD#PBF 功能描述:IC REG INV ADJ 0.25A DL 10DFN RoHS:是 类别:集成电路 (IC) >> PMIC - 稳压器 - DC DC 开关稳压器 系列:- 标准包装:250 系列:- 类型:降压(降压) 输出类型:固定 输出数:1 输出电压:1.2V 输入电压:2.05 V ~ 6 V PWM 型:电压模式 频率 - 开关:2MHz 电流 - 输出:500mA 同步整流器:是 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:6-UFDFN 包装:带卷 (TR) 供应商设备封装:6-SON(1.45x1) 产品目录页面:1032 (CN2011-ZH PDF) 其它名称:296-25628-2