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| 型号： | ADP161UJ-EVALZ |
| 厂商： | Analog Devices Inc |
| 文件页数： | 12/24页 |
| 文件大小： | 0K |
| 描述： | BOARD EVALUATION ADJUSTABLE |
| 标准包装： | 1 |
| 每 IC 通道数： | 1 - 单 |
| 输出电压： | 1 ~ 4 V |
| 电流 - 输出： | 150mA |
| 输入电压： | 2.2 V ~ 5.5 V |
| 稳压器类型： | 正，可调式 |
| 工作温度： | -40°C ~ 125°C |
| 板类型： | 完全填充 |
| 已供物品： | 板 |
| 已用 IC / 零件： | ADP161 |
ADP160/ADP161/ADP162/ADP163
THEORY OF OPERATION
Data Sheet
The ADP16x are ultralow quiescent current, low dropout linear
regulators that operate from 2.2 V to 5.5 V and can provide up to
VIN
VOUT
150 mA of output current. Drawing only 560 nA (typical) at no
load and a low 42 μA of quiescent current (typical) at full load
makes the ADP16x ideal for battery-operated portable equip-
ment. Shutdown current consumption is typically 50 nA.
Using new innovative design techniques, the ADP16x provide
GND
EN
SHORT CIRCUIT,
UVLO, AND
THERMAL
PROTECT
SHUTDOWN
REFERENCE
ADJ
ultralow quiescent current and superior transient performance
for digital and RF applications. The ADP16x are also optimized
for use with small 1 μF ceramic capacitors.
ADP163
Figure 33. Internal Block Diagram, Adjustable Output without Output
VIN
VOUT
Discharge Function
Internally, the ADP16x consists of a reference, an error amplifier, a
GND
SHORT CIRCUIT,
UVLO, AND
THERMAL
PROTECT
R1
R3
feedback voltage divider, and a PMOS pass transistor. Output
current is delivered via the PMOS pass device, which is controlled
by the error amplifier. The error amplifier compares the reference
EN
SHUTDOWN
REFERENCE
R2
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
ADP160
Figure 30. Internal Block Diagram, Fixed Output with Output Discharge Function
VIN VOUT
more current to pass and increasing the output voltage. If the
feedback voltage is higher than the reference voltage, the gate
of the PMOS device is pulled higher, allowing less current to pass
and decreasing the output voltage.
The adjustable ADP161 / ADP163 have an output voltage range
GND
SHORT CIRCUIT,
UVLO, AND
THERMAL
PROTECT
R1
of 1.0 V to 4.2 V. The output voltage is set by the ratio of two
external resistors, as shown in Figure 2. The device servos the
output to maintain the voltage at the ADJ pin at 1.0 V refe-
EN
SHUTDOWN
REFERENCE
ADJ
renced to ground. The current in R1 is then equal to 1.0 V/R2,
and the current in R1 is the current in R2 plus the ADJ pin bias
ADP161
Figure 31. Internal Block Diagram, Adjustable Output with Output Discharge
Function
current. The ADJ pin bias current, 10 nA at 25°C, flows through
R1 into the ADJ pin.
The output voltage can be calculated using the equation:
V OUT = 1.0 V(1 + R1 / R2 ) + ( ADJ I-BIAS )( R1 )
VIN
VOUT
The value of R1 should be less than 200 kΩ to minimize errors in
the output voltage caused by the ADJ pin bias current. For example,
GND
EN
SHORT CIRCUIT,
UVLO, AND
THERMAL
PROTECT
SHUTDOWN
REFERENCE
R1
R2
when R1 and R2 each equal 200 kΩ, the output voltage is 2.0 V.
The output voltage error introduced by the ADJ pin bias current
is 2 mV or 0.05%, assuming a typical ADJ pin bias current of
10 nA at 25°C.
ADP162
Figure 32. Internal Block Diagram, Fixed Output without Output Discharge
Function
Rev. H | Page 12 of 24
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相关代理商/技术参数 |
参数描述 |
|---|---|
| ADP-162 D | 功能描述:MDS-030AACXX UK VERSION DUCKHEAD 制造商:delta electronics 系列:MDS 零件状态:新产品 配件类型:适配器插头 配套使用产品/相关产品:墙式转接器（多插头） 标准包装:1 |
| ADP1621 | 制造商:AD 制造商全称:Analog Devices 功能描述:Constant-Frequency, Current-Mode Step-Up DC/DC Controller |
| ADP1621ARMZ | 制造商:Analog Devices 功能描述:DC DC Cntrlr Single-OUT Step Up 2.9V to 5.5V Input 10-Pin MSOP 制造商:Analog Devices 功能描述:DC-DC CONTROLLER PWM SMD MSOP10 制造商:Analog Devices 功能描述:DC-DC CONTROLLER, PWM, SMD, MSOP10 |
| ADP1621ARMZ-R7 | 功能描述:IC REG CTRLR PWM CM 10-MSOP RoHS:是 类别:集成电路 (IC) >> PMIC - 稳压器 - DC DC 切换控制器 系列:- 特色产品:LM3753/54 Scalable 2-Phase Synchronous Buck Controllers 标准包装:1 系列:PowerWise® PWM 型:电压模式 输出数:1 频率 - 最大:1MHz 占空比:81% 电源电压:4.5 V ~ 18 V 降压:是 升压:无 回扫:无 反相:无 倍增器:无 除法器:无 Cuk:无 隔离:无 工作温度:-5°C ~ 125°C 封装/外壳:32-WFQFN 裸露焊盘 包装:Digi-Reel® 产品目录页面:1303 (CN2011-ZH PDF) 其它名称:LM3754SQDKR |
| ADP1621-BL2-EVZ | 制造商:Analog Devices 功能描述:BLANK ADISIMPOWER EVAL ADP1621 - Boxed Product (Development Kits) |
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