参数资料
| 型号： | LT3060IDC-5#TRMPBF |
| 厂商： | Linear Technology |
| 文件页数： | 20/26页 |
| 文件大小： | 0K |
| 描述： | IC REG LDO 5V .1A 8DFN |
| 标准包装： | 500 |
| 稳压器拓扑结构： | 正，固定式 |
| 输出电压： | 5V |
| 输入电压： | 最高 45 V |
| 电压 - 压降（标准）： | 0.3V @ 100mA |
| 稳压器数量： | 1 |
| 电流 - 输出： | 100mA |
| 电流 - 限制（最小）： | 110mA |
| 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 |
| 供应商设备封装： | 8-DFN（2x2） |
| 包装： | 带卷 (TR) |
LT3060 Series
APPLICATIONS INFORMATION
the package on the topside (component side) of a PCB.
Connect this metal to GND on the PCB. The multiple IN
and OUT pins of the LT3060 also assist in spreading heat
to the PCB.
For surface mount devices, heat sinking is accomplished
by using the heat spreading capabilities of the PC board
and its copper traces. Copper board stiffeners and plated
through-holes also can spread the heat generated by
power devices.
Tables 2 and 3 list thermal resistance for several different
board sizes and copper areas. All measurements were taken
in still air on a 4 layer FR-4 board with 1oz solid internal
planes and 2oz top/bottom external trace planes with a total
board thickness of 1.6mm. The four layers were electrically
isolated with no thermal vias present. PCB layers, copper
weight, board layout and thermal vias will affect the resul-
tant thermal resistance. For more information on thermal
resistance and high thermal conductivity test boards,
refer to JEDEC standard JESD51, notably JESD51-12 and
JESD51-7. Achieving low thermal resistance necessitates
attention to detail and careful PCB layout.
Table 2. DC Package, 8-Lead DFN
COPPER AREA
TOPSIDE* BACKSIDE BOARD AREA THERMAL RESISTANCE
(mm 2 ) (mm 2 ) (mm 2 ) (JUNCTION-TO-AMBIENT)
Calculating Junction Temperature
Example: Given an output voltage of 2.5V, an input volt-
age range of 12V ±5%, an output current range of 0mA
to 50mA and a maximum ambient temperature of 85°C,
what will the maximum junction temperature be?
The power dissipated by the device equals:
I OUT(MAX) ? (V IN(MAX) –V OUT ) + I GND ? V IN(MAX)
where,
I OUT(MAX) = 50mA
V IN(MAX) = 12.6V
I GND at (I OUT = 50mA, V IN = 12.6V) = 0.6mA
So,
P = 50mA ? (12.6V – 2.5V) + 0.6mA ? 12.6V = 0.513W
Using a DFN package, the thermal resistance ranges from
48°C/W to 60°C/W depending on the copper area with
no thermal vias. So the junction temperature rise above
ambient approximately equals:
0.513W ? 54°C/W = 27.8°C
The maximum junction temperature equals the maximum
ambient temperature plus the maximum junction tem-
perature rise above ambient or:
2500
1000
225
2500
2500
2500
2500
2500
2500
48°C/W
49°C/W
50°C/W
T JMAX = 85°C + 27.8°C = 112.8°C
Protection Features
100 2500 2500
50 2500 2500
*Device is mounted on topside
Table 3. TS8 Package, 8 Lead TSOT-2 3
COPPER AREA
TOPSIDE* BACKSIDE BOARD AREA
(mm 2 ) (mm 2 ) (mm 2 )
54°C/W
60°C/W
THERMAL RESISTANCE
(JUNCTION-TO-AMBIENT)
The LT3060 regulators incorporate several protection
features that make it ideal for use in battery-powered
circuits. In addition to the normal protection features
associated with monolithic regulators, such as current
limiting and thermal limiting, the device also protects
against reverse-input voltages, reverse-output voltages
and reverse output-to-input voltages.
2500 2500
1000 2500
225 2500
100 2500
50 2500
*Device is mounted on topside
2500
2500
2500
2500
2500
57°C/W
58°C/W
59°C/W
63°C/W
67°C/W
Current limit protection and thermal overload protection
protect the device against current overload conditions at
the output of the device. The typical thermal shutdown
temperature is 165°C. For normal operation, do not exceed
a junction temperature of 125°C (LT3060E, LT3060I) or
150°C (LT3060MP, LT3060H).
3060fb
20
相关PDF资料 |
PDF描述 |
|---|---|
| RMC30DREH-S93 | CONN EDGECARD 60POS .100 EYELET |
| LT3060IDC-3.3#TRPBF | IC REG LDO 3.3V .1A 8DFN |
| LT3060IDC-3.3#TRMPBF | IC REG LDO 3.3V .1A 8DFN |
| LT3060IDC-2.5#TRPBF | IC REG LDO 2.5V .1A 8DFN |
| ACC26DRYS | CONN EDGECARD 52POS .100 DIP SLD |
相关代理商/技术参数 |
参数描述 |
|---|---|
| LT3060IDCPBF | 制造商:LINER 制造商全称:Linear Technology 功能描述:45V VIN, Micropower, Low Noise, 100mA Low Dropout, Linear Regulator |
| LT3060IDCTR | 制造商:LINER 制造商全称:Linear Technology 功能描述:45V VIN, Micropower, Low Noise, 100mA Low Dropout, Linear Regulator |
| LT3060IDCTRPBF | 制造商:LINER 制造商全称:Linear Technology 功能描述:45V VIN, Micropower, Low Noise, 100mA Low Dropout, Linear Regulator |
| LT3060ITS8 | 制造商:LINER 制造商全称:Linear Technology 功能描述:45V VIN, Micropower, Low Noise, 100mA Low Dropout, Linear Regulator |
| LT3060ITS8#PBF | 制造商:Linear Technology 功能描述:LDO Regulator Pos 0.6V to 44.5V 0.1A 8-Pin TSOT-23 |
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