参数资料
| 型号： | ADP121-ACBZ12R7 |
| 厂商： | Analog Devices Inc |
| 文件页数： | 11/20页 |
| 文件大小： | 0K |
| 描述： | IC REG LDO 1.2V .15A 4WLCSP |
| 产品培训模块： | Low Drop Out (LDO) Regulators |
| 产品变化通告： | 8mm Carrier Tape Changes 28/Feb/2012 |
| 设计资源： | Low power, Long Range, ISM Wireless Measuring Node (CN0164) |
| 标准包装： | 1 |
| 稳压器拓扑结构： | 正，固定式 |
| 输出电压： | 1.2V |
| 输入电压： | 2.3 V ~ 5.5 V |
| 稳压器数量： | 1 |
| 电流 - 输出： | 150mA（最小值） |
| 电流 - 限制（最小）： | 160mA |
| 工作温度： | -40°C ~ 125°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 4-WFBGA，WLCSP |
| 供应商设备封装： | 4-WLCSP（0.82x0.82） |
| 包装： | 标准包装 |
| 其它名称： | ADP121-ACBZ12R7DKR |
Data Sheet
THEORY OF OPERATION
The ADP121 is a low quiescent current, low dropout linear
regulator that operates from 2.3 V to 5.5 V and provides up
to 150 mA of output current. Drawing a low 30 μA quiescent
current (typical) at full load makes the ADP121 ideal for battery-
operated portable equipment. Shutdown current consumption
is typically 100 nA.
Optimized for use with small 1 μF ceramic capacitors,
the ADP121 provides excellent transient performance.
ADP121
Internally, the ADP121 consists of a reference, an error amplifier,
a feedback voltage divider, and a PMOS pass transistor. Output
current is delivered via the PMOS pass device, which is con-
trolled by the error amplifier. The error amplifier compares the
reference voltage with the feedback voltage from the output and
amplifies the difference. If the feedback voltage is lower than
the reference voltage, the gate of the PMOS device is pulled
lower, allowing more current to flow and increasing the output
voltage. If the feedback voltage is higher than the reference
VIN
GND
SHORT CIRCUIT,
UVLO, AND
THERMAL
PROTECT
R1
VOUT
voltage, the gate of the PMOS device is pulled higher, allowing
less current to flow and decreasing the output voltage.
The ADP121 is available in output voltages ranging from 1.2 V to
3.3 V. The ADP121 uses the EN pin to enable and disable the
VOUT pin under normal operating conditions. When EN is
high, VOUT turns on; when EN is low, VOUT turns off. For
automatic startup, EN can be tied to VIN.
EN
SHUTDOWN
0.8V REFERENCE
R2
Figure 27. Internal Block Diagram
Rev. G | Page 11 of 20
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相关代理商/技术参数 |
参数描述 |
|---|---|
| ADP121-ACBZ155R7 | 制造商:AD 制造商全称:Analog Devices 功能描述:150 mA, Low Quiescent Current, CMOS Linear Regulator |
| ADP121-ACBZ15R7 | 功能描述:IC REG LDO 1.5V .15A 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 |
| ADP121-ACBZ165R7 | 功能描述:线性稳压器 - 标准 150mA Low IQ Low Dropout Reg 1.65v RoHS:否 制造商:STMicroelectronics 输出类型: 极性: 输出电压:1.8 V 输出电流:150 mA 负载调节: 最大输入电压:5.5 V 线路调整率: 最大工作温度:+ 125 C 安装风格:SMD/SMT 封装 / 箱体:SOT-323-5L |
| ADP121-ACBZ16R7 | 制造商:AD 制造商全称:Analog Devices 功能描述:150 mA, Low Quiescent Current, CMOS Linear Regulator |
| ADP121-ACBZ175R7 | 制造商:AD 制造商全称:Analog Devices 功能描述:150 mA, Low Quiescent Current, CMOS Linear Regulator |
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