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参数资料
| 型号： | LT3502IDC#TRPBF |
| 厂商： | Linear Technology |
| 文件页数： | 3/24页 |
| 文件大小： | 0K |
| 描述： | IC REG BUCK ADJ 0.5A 8DFN |
| 标准包装： | 2,500 |
| 类型： | 降压（降压） |
| 输出类型： | 可调式 |
| 输出数： | 1 |
| 输出电压： | 0.8 V ~ 36 V |
| 输入电压： | 3 V ~ 40 V |
| PWM 型： | 电流模式 |
| 频率 - 开关： | 1.1MHz |
| 电流 - 输出： | 500mA |
| 同步整流器： | 无 |
| 工作温度： | -40°C ~ 125°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（2x2） |
LT3502/LT3502A
ELECTRICAL CHARACTERISTICS The l denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at T A = 25°C. V IN = 10V, V SHDN = 5V, V BOOST = 15V.
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
Undervoltage Lockout
Quiescent Current at Shutdown
Quiescent Current
V SHDN = 0V
Not Switching
2.6
2.8
0.5
1.5
3
2
2
V
μA
mA
Feedback Voltage
2mm × 2mm DFN
2mm × 2mm DFN
MS10
MS10
l
l
0.785
0.79
0.780
0.786
0.8
0.8
0.8
0.8
0.813
0.81
0.816
0.813
V
V
V
V
Reference Voltage Line Regulation
0.005
%/V
FB Pin Bias Current
(Note 5)
l
15
50
nA
Switching Frequency
Maximum Duty Cycle
I DA < 500mA (LT3502A)
I DA < 500mA (LT3502A)
I DA < 500mA (LT3502)
I DA < 500mA (LT3502)
100mA Load (LT3502A)
100mA Load (LT3502)
l
l
1.9
1.8
0.9
0.8
70
80
2.25
2.25
1.1
1.1
80
90
2.7
2.8
1.3
1.4
MHz
MHz
MHz
MHz
%
%
Switch V CESAT
I SW = 500mA
450
mV
Switch Current Limit
Switch Active Current
BOOST Pin Current
Minimum BOOST Voltage Above Switch
BOOST Schottky Forward Drop
DA Pin Current to Stop OSC
SHDN Bias Current
(Note 3)
SW = 10V (Note 4)
SW = 0V (Note 5)
I SW = 500mA
I SW = 500mA
I OUT = 100mA
V SHDN = 5V
V SHDN = 0V
0.75
500
0.9
95
8
10
1.9
0.8
650
55
1.1
130
30
13
2.2
1
80
1
A
μA
μA
mA
V
V
mA
μA
μA
SHDN Input Voltage High
SHDN Input Voltage Low
2
0.3
V
V
3
Note 1: Stresses beyond those listed under Absolute Maximum Ratings
may cause permanent damage to the device. Exposure to any Absolute
Maximum Rating condition for extended periods may affect device
reliability and lifetime.
Note 2. The LT3502EDC and LT3502AEDC are guaranteed to meet
performance specifications from 0°C to 125°C junction temperature
range. Specifications over the –40°C to 125°C operating junction
temperature range are assured by design, characterization and correlation
with statistical process controls. The LT3502IDC and LT3502AIDC are
guaranteed over the – 40°C to 125°C operating junction temperature
range.
Note 3: Current limit guaranteed by design and/or correlation to static test.
Slope compensation reduces current limit at higher duty cycle.
Note 4: Current flows into pin.
Note 5: Current flows out of pin.
3502fd
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相关代理商/技术参数 |
参数描述 |
|---|---|
| LT3502IMS#PBF | 功能描述:IC REG BUCK ADJ 0.5A 10MSOP 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:降压（降压） 输出类型:固定 输出数:1 输出电压:1.2V，1.5V，1.8V，2.5V 输入电压:2.7 V ~ 20 V PWM 型:- 频率 - 开关:- 电流 - 输出:50mA 同步整流器:是 工作温度:-40°C ~ 125°C 安装类型:表面贴装 封装/外壳:10-TFSOP，10-MSOP（0.118"，3.00mm 宽）裸露焊盘 包装:带卷 (TR) 供应商设备封装:10-MSOP 裸露焊盘 |
| LT3502IMS#TRPBF | 功能描述:IC REG BUCK ADJ 0.5A 10MSOP 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:降压（降压） 输出类型:固定 输出数:1 输出电压:1.2V，1.5V，1.8V，2.5V 输入电压:2.7 V ~ 20 V PWM 型:- 频率 - 开关:- 电流 - 输出:50mA 同步整流器:是 工作温度:-40°C ~ 125°C 安装类型:表面贴装 封装/外壳:10-TFSOP，10-MSOP（0.118"，3.00mm 宽）裸露焊盘 包装:带卷 (TR) 供应商设备封装:10-MSOP 裸露焊盘 |
| LT3502IMS-PBF | 制造商:LINER 制造商全称:Linear Technology 功能描述:1.1MHz/2.2MHz, 500mA Step-Down Regulators in 2mm × 2mm DFN and MS10 |
| LT3502IMS-TRPBF | 制造商:LINER 制造商全称:Linear Technology 功能描述:1.1MHz/2.2MHz, 500mA Step-Down Regulators in 2mm × 2mm DFN and MS10 |
| LT3503 | 制造商:LINER 制造商全称:Linear Technology 功能描述:1A, 2.2MHz Step-Down Switching Regulator in 2mm × 3mm DFN |
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