参数资料
| 型号： | LT3023EMSE |
| 厂商： | Linear Technology |
| 文件页数： | 10/16页 |
| 文件大小： | 0K |
| 描述： | IC REG LDO ADJ .1A 10-MSOP |
| 标准包装： | 50 |
| 稳压器拓扑结构： | 正，可调式 |
| 输出电压： | 1.22 V ~ 20 V |
| 输入电压： | 1.8 V ~ 20 V |
| 电压 - 压降（标准）： | 0.3V @ 100mA |
| 稳压器数量： | 2 |
| 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： | 10-TFSOP，10-MSOP（0.118"，3.00mm 宽）裸露焊盘 |
| 供应商设备封装： | 10-MSOP 裸露焊盘 |
| 包装： | 管件 |
LT3023
APPLICATIONS INFORMATION
Output Capacitance and Transient Response
The LT3023 regulator is designed to be stable with a
wide range of output capacitors. The ESR of the out-
put capacitor affects stability, most notably with small
capacitors. A minimum output capacitor of 1μF with an
ESR of 3Ω or less is recommended to prevent oscilla-
tions. The LT3023 is a micropower device and output
transient response will be 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 LT3023,
will increase the effective output capacitor value. With
larger capacitors used to bypass the reference (for low
noise operation), larger values of output capacitors are
needed. For 100pF of bypass capacitance, 2.2μF of output
and temperature coef?cients as shown in Figures 3 and 4.
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 tempera-
ture range. The X5R and X7R dielectrics result in more
stable characteristics and are more suitable for use as the
output capacitor. The X7R type has better stability across
temperature, while the X5R is less expensive and is avail-
able in higher values. Care still must be exercised when
using X5R and X7R capacitors; 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 capacitors, but can still be signi?cant enough
to drop capacitor values below appropriate levels. Capaci-
tor DC bias characteristics tend to improve as component
capacitor is recommended. With a 330pF bypass capacitor
or larger, a 3.3μF output capacitor is recommended. The
shaded region of Figure 2 de?nes the region over which
the LT3023 regulator is stable. The minimum ESR needed
is de?ned by the amount of bypass capacitance used, while
20
0
–20
BOTH CAPACITORS ARE 16V,
1210 CASE SIZE, 10μF
X5R
the maximum ESR is 3Ω.
Extra consideration must be given to the use of ceramic
capacitors. Ceramic capacitors are manufactured with a
variety of dielectrics, each with different behavior across
–40
–60
–80
Y5V
temperature and applied voltage. The most common
dielectrics used are speci?ed with EIA temperature char-
acteristic codes of Z5U, Y5V, X5R and X7R. The Z5U and
–100
0
2
4
6 8 10 12
DC BIAS VOLTAGE (V)
14 16
3023 F03
Y5V dielectrics are good for providing high capacitances
in a small package, but they tend to have strong voltage
4.0
3.5
Figure 3. Ceramic Capacitor DC Bias Characteristics
40
20
3.0
2.5
STABLE REGION
0
–20
X5R
2.0
1.5
1.0
0.5
0
C BYP = 0
C BYP = 100pF
C BYP = 330pF
C BYP > 3300pF
–40
–60
–80
–100
Y5V
BOTH CAPACITORS ARE 16V,
1210 CASE SIZE, 10μF
1
2
3
4 5 6 7 8 9 10
–50 –25
0
25
50
75
100
125
OUTPUT CAPACITANCE (μF)
Figure 2. Stability
3023 F02
TEMPERATURE (°C)
3023 F04
Figure 4. Ceramic Capacitor Temperature Characteristics
3023fa
10
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相关代理商/技术参数 |
参数描述 |
|---|---|
| LT3023EMSE#PBF | 功能描述:IC REG LDO ADJ .1A 10-MSOP RoHS:是 类别:集成电路 (IC) >> PMIC - 稳压器 - 线性 系列:- 产品培训模块:MIC5365/66 Ultra-small LDO Regulators 标准包装:1 系列:- 稳压器拓扑结构:正，固定式 输出电压:3V 输入电压:最高 5.5V 电压 - 压降（标准）:0.155V @ 150mA 稳压器数量:1 电流 - 输出:150mA 电流 - 限制（最小）:200mA 工作温度:-40°C ~ 125°C 安装类型:表面贴装 封装/外壳:4-UDFN 裸露焊盘，4-TMLF? 供应商设备封装:4-TMLF?（1x1） 包装:Digi-Reel® 其它名称:576-3192-6 |
| LT3023EMSE#TR | 功能描述:IC REG LDO ADJ .1A 10-MSOP RoHS:否 类别:集成电路 (IC) >> PMIC - 稳压器 - 线性 系列:- 产品培训模块:More Information on LDOs 标准包装:50 系列:- 稳压器拓扑结构:正，固定式 输出电压:3.3V 输入电压:最高 15V 电压 - 压降（标准）:1.1V @ 800mA 稳压器数量:1 电流 - 输出:800mA 电流 - 限制（最小）:800mA 工作温度:0°C ~ 125°C 安装类型:表面贴装 封装/外壳:TO-263-4，D²Pak（3 引线+接片），TO-263AA 供应商设备封装:D2PAK-3 包装:管件 |
| LT3023EMSE#TRPBF | 功能描述:IC REG LDO ADJ .1A 10-MSOP RoHS:是 类别:集成电路 (IC) >> PMIC - 稳压器 - 线性 系列:- 产品培训模块:More Information on LDOs 标准包装:50 系列:- 稳压器拓扑结构:正，固定式 输出电压:3.3V 输入电压:最高 15V 电压 - 压降（标准）:1.1V @ 800mA 稳压器数量:1 电流 - 输出:800mA 电流 - 限制（最小）:800mA 工作温度:0°C ~ 125°C 安装类型:表面贴装 封装/外壳:TO-263-4，D²Pak（3 引线+接片），TO-263AA 供应商设备封装:D2PAK-3 包装:管件 |
| LT3023EMSEPBF | 制造商:Linear Technology 功能描述:LT3023 dual adj 100mA LDO regulator |
| LT3023IDD | 制造商:Linear Technology 功能描述:SP-LINREG, Dual 100mA, Low Dropout, Low Noise, Micropower Regulator |
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