参数资料
| 型号： | ADP220ACBZ-1212R7 |
| 厂商： | Analog Devices Inc |
| 文件页数： | 12/20页 |
| 文件大小： | 0K |
| 描述： | IC REG LDO 1.2V .2A 6WLCSP |
| 产品变化通告： | 8mm Carrier Tape Changes 28/Feb/2012 |
| 标准包装： | 3,000 |
| 稳压器拓扑结构： | 正，固定式 |
| 输出电压： | 1.2V |
| 输入电压： | 2.5 V ~ 5.5 V |
| 稳压器数量： | 2 |
| 电流 - 输出： | 200mA（最小值） |
| 电流 - 限制（最小）： | 240mA |
| 工作温度： | -40°C ~ 125°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 6-WFBGA，WLCSP |
| 供应商设备封装： | 6-WLCSP（1.45x0.95） |
| 包装： | 带卷 (TR) |
ADP220/ADP221
APPLICATIONS INFORMATION
CAPACITOR SELECTION
Output Capacitor
The ADP220/ADP221 are designed for operation with small,
space-saving ceramic capacitors, but the parts function with
most commonly used capacitors as long as care is taken with
regards to the effective series resistance (ESR) value. The ESR
of the output capacitor affects stability of the LDO control loop.
A minimum of 0.70 μF capacitance with an ESR of 1 ? or less
is recommended to ensure stability of the ADP220/ADP221.
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 ADP220/ADP221 to large
changes in the load current. Figure 29 and Figure 30 show the
transient responses for output capacitance values of 1 μF and
4.7 μF, respectively.
Data Sheet
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 are encountered. If an output
capacitance greater than 1 μF is required, the input capacitor
should be increased to match it.
Input and Output Capacitor Properties
Any good quality ceramic capacitor can be used with the ADP220/
ADP221, as long as the capacitor meets the minimum capacit-
ance and maximum ESR requirements. Ceramic capacitors are
manufactured with a variety of dielectrics, each with a different
behavior over temperature and applied voltage. Capacitors must
have an adequate dielectric 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,
1
T
I LOAD1
due to their poor temperature and dc bias characteristics.
of an 0402 1 μF, 10 V, X5R capacitor. The voltage stability of a
capacitor is strongly influenced by the capacitor size and voltage
I LOAD1 = 1mA TO 200mA, I LOAD2 = 1mA
rating. In general, a capacitor in a larger package or higher voltage
rating exhibits better stability. The temperature variation of the
2
3
V OUT1
V OUT2, C OUT = 1μF
X5R dielectric is about ±15% over the ?40°C to +85°C tempera-
ture range and is not a function of the package or voltage rating.
1.2
W M200ns A CH1
CH1 200mA Ω BW CH2 50.0mV
B
132mA
1.0
CH3 10.0mV
B
W
T 26.60%
Figure 29. Output Transient Response
I LOAD1 = 1 mA to 200 mA, I LOAD2 = 1 mA
CH1 = I LOAD1 , CH2 = V OUT1 , CH3 = V OUT2 , C OUT = 1 μF
0.8
0.6
T
I LOAD1
0.4
0.2
1
0
I LOAD1 = 1mA TO 200mA, I LOAD2 = 1mA
0
2
4 6
VOLTAGE (V)
8
10
Figure 31. Capacitance vs. Voltage Bias Characteristic
2
V OUT1
3
V OUT2, C OUT = 4.7μF
CH1 200mA Ω BW CH2 50.0mV
B
W M1.00μs A CH1
132mA
CH3 10.0mV
B
W
T 11.40%
Figure 30. Output Transient Response
I LOAD1 = 1 mA to 200 mA, I LOAD2 = 1 mA
CH1 = I LOAD1 , CH2 = V OUT1 , CH3 = V OUT2 , C OUT = 4.7 μF
Rev. H | Page 12 of 20
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相关代理商/技术参数 |
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| ADP220ACBZ-1812R7 | 功能描述:IC REG LDO 1.8V/1.2V .2A 6WLCSP 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 |
| ADP220ACBZ-1827R7 | 功能描述:IC REG LDO 1.8V/2.7V .2A 6WLCSP 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 |
| ADP220ACBZ-2525R7 | 功能描述:IC REG LDO 2.5V .2A 6WLCSP RoHS:是 类别:集成电路 (IC) >> PMIC - 稳压器 - 线性 系列:- 标准包装:45 系列:- 稳压器拓扑结构:正，固定式 输出电压:5V 输入电压:6 V ~ 30 V 电压 - 压降（标准）:0.47V @ 250mA 稳压器数量:1 电流 - 输出:250mA 电流 - 限制（最小）:- 工作温度:-40°C ~ 125°C 安装类型:通孔 封装/外壳:TO-220-3 供应商设备封装:TO-220-3 包装:管件 产品目录页面:1289 (CN2011-ZH PDF) 其它名称:*LP2954AIT*LP2954AIT/NOPBLP2954AIT |
| ADP220ACBZ-26235R7 | 功能描述:IC REG LDO 2.6V/2.35V .2A 6WLCSP 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 |
| ADP220ACBZ-2623R7 | 功能描述:IC REG LDO 2.6V/2.3V .2A 6WLCSP 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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