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参数资料
| 型号： | ADP150UJZ-REDYKIT |
| 厂商： | Analog Devices Inc |
| 文件页数： | 12/20页 |
| 文件大小： | 0K |
| 描述： | KIT REDI TOOL 1.8/3.3 ADP150 |
| 设计资源： | Broadband Low EVM Direct Conversion Transmitter Using LO Divide-by-2 Modulator (CN0144) Using low noise linear drop-out regulators to power wideband PLL & VCO IC's (CN0147) |
| 标准包装： | 1 |
| 系列： | Redykit™ |
| 每 IC 通道数： | 1 - 单 |
| 输出电压： | 1.8V，3.3V |
| 电流 - 输出： | 150mA |
| 输入电压： | 2.2 ~ 5.5V |
| 稳压器类型： | 正，固定式 |
| 工作温度： | -40°C ~ 85°C |
| 板类型： | 完全填充 |
| 已供物品： | 2 板，样品 |
| 已用 IC / 零件： | ADP150 |
ADP150
APPLICATIONS INFORMATION
CAPACITOR SELECTION
Output Capacitor
The ADP150 is designed for operation with small, space-saving
ceramic capacitors but functions with most commonly used
capacitors as long as care is taken with regard to the effective
series resistance (ESR) value. The ESR of the output capacitor
affects the stability of the LDO control loop. A minimum of 1 μF
capacitance with an ESR of 1 ? or less is recommended to
ensure the stability of the ADP150. The transient response to
changes in load current is also affected by output capacitance.
Using a larger value of output capacitance improves the transient
response of the ADP150 to large changes in the load current.
capacitance values of 1 μF and 4.7 μF, respectively.
T
I OUT
1mA TO 150mA LOAD STEP
Data Sheet
Input and Output Capacitor Properties
Any good quality ceramic capacitors can be used with the ADP150,
as long as they meet the minimum capacitance and maximum
ESR requirements. Ceramic capacitors are manufactured with a
variety of dielectrics, each with different behavior over temperature
and applied voltage. Capacitors must have a dielectric adequate to
ensure the minimum capacitance over the necessary temperature
range and dc bias conditions. X5R or X7R dielectrics with a
voltage rating of 6.3 V or 10 V are recommended. Y5V and Z5U
dielectrics are not recommended, due to their poor temperature
and dc bias characteristics.
of a 0402, 1 μF, 10 V, X5R capacitor. The voltage stability of a
capacitor is strongly influenced by the capacitor size and voltage
rating. In general, a capacitor in a larger package or higher voltage
rating exhibits better stability. The temperature variation of the X5R
dielectric is about ±15% over the ?40°C to +85°C temperature
range and is not a function of package or voltage rating.
1.2
1
1.0
2
V OUT
V IN = 3.7V
V OUT = 3.3V
0.8
0.6
CH1 100mA
CH2 50mV
M1.0μs
A CH1
100mA
0.4
T
716.000μs
Figure 27. Output Transient Response, C OUT = 1 μF
T
0.2
0
0
2
4
6
8
10
BIAS VOLTAGE (V)
1
I OUT
1mA TO 150mA LOAD STEP
Figure 29. Capacitance vs. Voltage Bias Characteristic
Use Equation 1 to determine the worst-case capacitance,
accounting for capacitor variation over temperature, component
tolerance, and voltage.
2
V OUT
C EFF = C BIAS × (1 ? TEMPCO ) × (1 ? TOL )
(1)
where:
V IN = 3.7V
V OUT = 3.3V
C BIAS is the effective capacitance at the operating voltage.
TEMPCO is the worst-case capacitor temperature coefficient.
CH1 100mA
CH2 50mV
M1.0μs
A CH1
108mA
TOL is the worst-case component tolerance.
T 240.000ns
Figure 28. Output Transient Response, C OUT = 4.7 μF
Input Bypass Capacitor
Connecting a 1 μF capacitor from VIN to GND reduces the
circuit sensitivity to the PCB layout, especially when long input
traces or high source impedance is encountered. If greater than
1 μF of output capacitance is required, increase the input capacitor
to match the output capacitor.
In this example, the worst-case temperature coefficient (TEMPCO)
over ?40°C to +85°C is assumed to be 15% for an X5R dielectric.
The tolerance of the capacitor (TOL) is assumed to be 10%, and
Substituting these values in Equation 1 yields
C EFF = 0.94 μF × (1 ? 0.15) × (1 ? 0.1) = 0.719 μF
Therefore, the capacitor chosen in this example meets the
minimum capacitance requirement of the LDO over temperature
and tolerance at the chosen output voltage.
Rev. B | Page 12 of 20
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相关代理商/技术参数 |
参数描述 |
|---|---|
| ADP151 | 制造商:AD 制造商全称:Analog Devices 功能描述:Ultralow Noise,200 mA, CMOS Linear Regulator |
| ADP151_VD | 制造商:AD 制造商全称:Analog Devices 功能描述:Ultralow Noise, 200 mA, CMOS Linear Regulator |
| ADP151ACBZ-1.1-R7 | 功能描述:IC REG LDO 1.1V .2A 4WLCSP RoHS:是 类别:集成电路 (IC) >> PMIC - 稳压器 - 线性 系列:- 其它有关文件:LD39015JXX12 View All Specifications 标准包装:1 系列:- 稳压器拓扑结构:正，固定式 输出电压:1.2V 输入电压:1.5 V ~ 5.5 V 电压 - 压降（标准）:- 稳压器数量:1 电流 - 输出:150mA 电流 - 限制（最小）:- 工作温度:-40°C ~ 125°C 安装类型:表面贴装 封装/外壳:4-WFBGA，FCBGA 供应商设备封装:4-覆晶（1.07x1.07） 包装:Digi-Reel® 其它名称:497-11958-6 |
| ADP151ACBZ-1.2-R7 | 功能描述:IC REG LDO 1.2V .2A 4WLCSP RoHS:是 类别:集成电路 (IC) >> PMIC - 稳压器 - 线性 系列:- 其它有关文件:LD39015JXX12 View All Specifications 标准包装:1 系列:- 稳压器拓扑结构:正，固定式 输出电压:1.2V 输入电压:1.5 V ~ 5.5 V 电压 - 压降（标准）:- 稳压器数量:1 电流 - 输出:150mA 电流 - 限制（最小）:- 工作温度:-40°C ~ 125°C 安装类型:表面贴装 封装/外壳:4-WFBGA，FCBGA 供应商设备封装:4-覆晶（1.07x1.07） 包装:Digi-Reel® 其它名称:497-11958-6 |
| ADP151ACBZ-1.5-R7 | 功能描述:IC REG LDO 1.5V .2A 4WLCSP RoHS:是 类别:集成电路 (IC) >> PMIC - 稳压器 - 线性 系列:- 标准包装:75 系列:- 稳压器拓扑结构:正，可调式 输出电压:1.2 V ~ 37 V 输入电压:4.2 V ~ 40 V 电压 - 压降（标准）:- 稳压器数量:1 电流 - 输出:500mA 电流 - 限制（最小）:500mA 工作温度:-40°C ~ 125°C 安装类型:表面贴装 封装/外壳:TO-252-3，DPak（2 引线+接片），SC-63 供应商设备封装:TO-252-3 包装:管件 产品目录页面:1286 (CN2011-ZH PDF) 其它名称:*LM317AMDT/NOPBLM317AMDT |
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