参数资料
| 型号： | LT3060IDC-5#TRMPBF |
| 厂商： | Linear Technology |
| 文件页数： | 18/26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
During start-up, the internal reference soft-starts if a
reference bypass capacitor is present. Regulator start-
up time is directly proportional to the size of the bypass
capacitor, slowing to 6ms with a 10nF bypass capacitor
(See Start-up Time vs REF/BYP Capacitor in the Typical
Performance Characteristics section). The reference by-
pass capacitor is actively pulled low during shutdown to
reset the internal reference.
Start-up time is also affected by the use of a feedforward
capacitor. Start-up time is directly proportional to the size
of the feedforward capacitor and output voltage, and is
inversely proportional to the feedback resistor divider
current, slowing to 15ms with a 4.7nF feedforward ca-
pacitor and a 10μF output capacitor for an output voltage
set to 5V by a 5μA feedback resistor divider.
Output Capacitance
The LT3060 regulators are stable with a wide range of
output capacitors. The ESR of the output capacitor af-
fects stability, most notably with small capacitors. Use
a minimum output capacitor of 2.2μF with an ESR of 3Ω
or less to prevent oscillations. If a feedforward capacitor
is used with output voltages set for greater than 24V, use
a minimum output capacitor of 4.7μF. The LT3060 is a
micropower device and output load transient response is
a function of output capacitance. Larger values of output
capacitance decrease the peak deviations and provide
improved transient response for larger load current
changes. Bypass capacitors, used to decouple individual
components powered by the LT3060, increase the effec-
tive output capacitor value. For applications with large
load current transients, a low ESR ceramic capacitor in
parallel with a bulk tantalum capacitor often provides an
optimally damped response.
Give extra consideration to the use of ceramic capacitors.
Manufacturers make ceramic capacitors with a variety of
dielectrics, each with different behavior across tempera-
ture and applied voltage. The most common dielectrics
are specified with EIA temperature characteristic codes
of Z5U, Y5V, X5R and X7R. The Z5U and Y5V dielectrics
provide high C-V products in a small package at low cost ,
but exhibit strong voltage and temperature coefficients, as
shown in Figures 4 and 5. When used with a 5V regulator,
a 16V 10μF Y5V capacitor can exhibit an effective value
as low as 1μF to 2μF for the DC bias voltage applied, and
over the operating temperature range. The X5R and X7R
dielectrics yield much more stable characteristics and
are more suitable for use as the output capacitor.
The X7R type works over a wider temperature range
and has better temperature stability, while the X5R is
less expensive and is available in higher values. Care
still must be exercised when using X5R and X7R ca-
pacitors; the X5R and X7R codes only specify operating
temperature range and maximum capacitance change
over temperature. Capacitance change due to DC bias
with X5R and X7R capacitors is better than Y5V and Z5U
20
0
BOTH CAPACITORS ARE 16V,
1210 CASE SIZE, 10μF
40
20
–20
X5R
0
X5R
–20
–40
–40
Y5V
–60
Y5V
–60
–80
–80
BOTH CAPACITORS ARE 16V,
1210 CASE SIZE, 10μF
–100
0
2
4
6
8
10
12
14
16
–100
–50 –25
0
25
50
75
100
125
DC BIAS VOLTAGE (V)
3060 F04
TEMPERATURE (°C)
3060 F05
Figure 4. Ceramic Capacitor DC Bias Characteristics
Figure 5. Ceramic Capacitor Temperature Characteristics
3060fb
18
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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