参数资料
型号: ADP160AUJZ-1.5-R7
厂商: Analog Devices Inc
文件页数: 14/24页
文件大小: 0K
描述: IC REG LDO 1.5V .15A 5TSOT
标准包装: 1
稳压器拓扑结构: 正,固定式
输出电压: 1.5V
输入电压: 2.2 V ~ 5.5 V
稳压器数量: 1
电流 - 输出: 150mA(最小值)
电流 - 限制(最小): 220mA
工作温度: -40°C ~ 125°C
安装类型: 表面贴装
封装/外壳: SOT-23-5 细型,TSOT-23-5
供应商设备封装: TSOT-23-5
包装: 标准包装
其它名称: ADP160AUJZ-1.5-R7DKR

ADP160/ADP161/ADP162/ADP163
APPLICATIONS INFORMATION
CAPACITOR SELECTION
Output Capacitor
The ADP16x are designed for operation with small, space-
saving ceramic capacitors, but function 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 stability of the LDO control loop. A minimum
of 1 μF capacitance with an ESR of 1 Ω or less is recommended
to ensure stability of the ADP16x . 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 ADP16x to large changes in load current. Figure 34
and Figure 35 show the transient responses for output
capacitance values of 1 μF and 10 μF, respectively.
T
LOAD CURRENT
1
Data Sheet
Input and Output Capacitor Properties
Any good quality ceramic capacitors can be used with the
ADP16x , 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.
Figure 36 depicts the capacitance vs. voltage bias characteristic
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
1.0
2
V OUT
0.8
0.6
CH1 100mA ? CH2 200mV
M200μs
A CH1
62mA
0.4
T 10.40%
Figure 34. Output Transient Response, C OUT = 1 μF,
CH1 = Load Current, CH2 = V OUT
0.2
T
0
0
2
4
6
8
10
1
LOAD CURRENT
VOLTAGE
Figure 36. Capacitance vs. Voltage 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:
C BIAS is the effective capacitance at the operating voltage.
TEMPCO is the worst-case capacitor temperature coefficient.
TOL is the worst-case component tolerance.
CH1 100mA ? CH2 200mV
M200μs
A CH1
74mA
In this example, the worst-case temperature coefficient (TEMPCO)
T 10.00%
Figure 35. Output Transient Response, C OUT = 10 μF,
CH1 = Load Current, CH2 = V OUT
Input Bypass Capacitor
Connecting a 1 μF capacitor from VIN to GND reduces the circuit
sensitivity to the printed circuit board (PCB) layout, especially
when long input traces or high source impedance are encountered.
If greater than 1 μF of output capacitance is required, the input
capacitor should be increased to match it.
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
C BIAS is 0.94 μF at 1.8 V, as shown in Figure 36.
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. H | Page 14 of 24
相关PDF资料
PDF描述
ADP1610ARMZ-R7 IC REG BOOST ADJ 1.2A 8MSOP
ADP1611ARMZ-R7 IC REG BOOST ADJ 1.2A 8MSOP
ADP1613ARMZ-R7 IC REG BOOST SEPIC ADJ 2A 8MSOP
ADP1614ACPZ-650-R7 IC REG BOOST ADJ 4A 10LFCSP
ADP1621ARMZ-R7 IC REG CTRLR PWM CM 10-MSOP
相关代理商/技术参数
参数描述
ADP160AUJZ-2.3-R7 功能描述:IC REG LDO 2.3V .15A 5TSOT 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
ADP160AUJZ-2.5-R7 功能描述:IC REG LDO 2.5V .15A 5TSOT RoHS:是 类别:集成电路 (IC) >> PMIC - 稳压器 - 线性 系列:- 标准包装:3,000 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):0.12V @ 150mA 稳压器数量:1 电流 - 输出:150mA(最小值) 电流 - 限制(最小):220mA 工作温度:-40°C ~ 125°C 安装类型:表面贴装 封装/外壳:SOT-23-5 细型,TSOT-23-5 供应商设备封装:TSOT-23-5 包装:带卷 (TR) 其它名称:ADP160AUJZ-3.0-R7TR
ADP160AUJZ-2.7-R7 功能描述:IC REG LDO 2.7V .15A 5TSOT RoHS:是 类别:集成电路 (IC) >> PMIC - 稳压器 - 线性 系列:- 标准包装:3,000 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):0.12V @ 150mA 稳压器数量:1 电流 - 输出:150mA(最小值) 电流 - 限制(最小):220mA 工作温度:-40°C ~ 125°C 安装类型:表面贴装 封装/外壳:SOT-23-5 细型,TSOT-23-5 供应商设备封装:TSOT-23-5 包装:带卷 (TR) 其它名称:ADP160AUJZ-3.0-R7TR
ADP160AUJZ-2.8-R7 功能描述:IC REG LDO 2.8V .15A 5TSOT RoHS:是 类别:集成电路 (IC) >> PMIC - 稳压器 - 线性 系列:- 标准包装:3,000 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):0.12V @ 150mA 稳压器数量:1 电流 - 输出:150mA(最小值) 电流 - 限制(最小):220mA 工作温度:-40°C ~ 125°C 安装类型:表面贴装 封装/外壳:SOT-23-5 细型,TSOT-23-5 供应商设备封装:TSOT-23-5 包装:带卷 (TR) 其它名称:ADP160AUJZ-3.0-R7TR
ADP160AUJZ-3.0-R7 功能描述:IC REG LDO 3V .15A 5TSOT 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