收藏本站

EVAL-ADP1720
OUTPUT VOLTAGE MEASUREMENTS
VOLTAGE SOURCE
VOLTAGE METER
+
_
GND
C1
EVAL-ADP1720
U1
C2
GND
_
V
+
R1
VIN
J1
R2
J2
VOUT
LOAD
GND
EN
GND/ADJ
GND
Figure 5.
Figure 5 shows how the evaluation board can be connected to a
voltage source and a voltage meter for some basic output voltage
accuracy measurements. A resistor can be used as the load for
the regulator. Ensure the resistor has a power rating adequate
to handle the power expected to be dissipated across it. An elec-
tronic load can be used as an alternative. Ensure the voltage source
used can supply adequate current for the expected load levels.
Follow these steps to connect to a voltage source and voltage meter:
LINE REGULATION
For line regulation measurements, the regulator’s output is
monitored while its input is varied. For good line regulation,
the output must change as little as possible with varying input
levels. To ensure the device is not in dropout during this
measurement, VIN must be varied between VOUT NOM + 0.5 V
(or 4 V, whichever is greater) to VIN MAX . For an ADP1720 with
5 V output, this means VIN needs to be varied between 5.5 V
1.
2.
Connect the negative terminal (?) of the voltage source to
one of the GND pads on the evaluation board.
Connect the positive terminal (+) of the voltage source to
and 28 V. This measurement can be repeated under different
load conditions. Figure 6 shows the typical line regulation
performance of an ADP1720 with 5 V output.
3.
4.
5.
the VIN pad of the evaluation board.
Connect a load between the VOUT pad and one of the
GND pads.
Connect the negative terminal (?) of the voltage meter to
one of the GND pads, and the positive terminal (+) of the
voltage meter to the VOUT pad.
The voltage source can now be turned on. If J1 is inserted
5.010
5.008
5.006
5.004
5.002
5.000
I LOAD = 10μA
I LOAD = 100μA
I LOAD = 1mA
I LOAD = 10mA
I LOAD = 25mA
I LOAD = 50mA
(this connects EN to VIN for automatic startup), then the
regulator powers up.
If large load currents are used, then the user must connect the
voltage meter as close as possible to the output capacitor to
4.998
4.996
4.994
4.992
reduce the effects of IR drops.
4.990
0
5
10
15
20
25
3 0
V IN (V)
Figure 6. ADP1720 Line Regulation
Rev. 0 | Page 5 of 8
发布紧急采购，3分钟左右您将得到回复。

采购需求

(若只采购一条型号，填写一行即可)

发布成功！您可以继续发布采购。也可以进入我的后台，查看报价

发布成功！您可以继续发布采购。也可以进入我的后台，查看报价

*型号 *数量 厂商 批号 封装
添加更多采购

我的联系方式

*
*
*
相关PDF资料
ADP2140CPZ-REDYKIT REDYKIT 2 BOARDS ADP2140ACPZ
ADP3110AKRZ-RL IC MOSFET DRIVER DUAL 12V 8SOIC
ADP3120AJCPZ-RL IC MOSFET DRIVER DUAL 12V 8-DFN
ADP3121JRZ-RL IC MOSFET DRIVER DUAL 12V 8SOIC
ADP3415LRMZ-REEL IC MOSFET DVR DUAL BOOTST 10MSOP
ADP3419JRM-REEL IC MOSFET DVR DUAL BOOTST 10MSOP
ADP3611JRMZ-REEL IC MOSFET DRIVER DUAL 10-MSOP
ADP5501ACPZ-RL IC LED DRVR WHITE BCKLGT 24LFCSP
相关代理商/技术参数
ADP1720TRMZ3.3-EP 功能描述:IC REG LDO 3.3V 50MA 8MSOP RoHS:是 类别:集成电路 (IC) >> PMIC - 稳压器 - 线性 系列:- 产品培训模块:More Information on LDOs 标准包装:50 系列:- 稳压器拓扑结构:正，固定式 输出电压:3.3V 输入电压:最高 15V 电压 - 压降（标准）:1.1V @ 800mA 稳压器数量:1 电流 - 输出:800mA 电流 - 限制（最小）:800mA 工作温度:0°C ~ 125°C 安装类型:表面贴装 封装/外壳:TO-263-4，D²Pak（3 引线+接片），TO-263AA 供应商设备封装:D2PAK-3 包装:管件
ADP1720TRMZ3.3EPR7 功能描述:Linear Voltage Regulator IC Positive Fixed 1 Output 3.3V 50mA 8-MSOP 制造商:analog devices inc. 系列:- 包装:带卷（TR） 零件状态:有效 稳压器拓扑:正，固定式 电压 - 输出:3.3V 电流 - 输出:50mA 电压 - 跌落（典型值）:- 稳压器数:1 电压 - 输入:4 V ~ 28 V 电流 - 限制（最小值）:55mA 工作温度:-55°C ~ 125°C 安装类型:表面贴装 封装/外壳:8-TSSOP，8-MSOP（0.118"，3.00mm 宽） 供应商器件封装:8-MSOP 标准包装:1,000
ADP1720TRMZ3.3-EPR7 制造商:AD 制造商全称:Analog Devices 功能描述:50 mA, High Voltage, Micropower Linear Regulator
ADP1720TRMZ5-EP 功能描述:IC REG LDO 5V 50MA 8MSOP RoHS:是 类别:集成电路 (IC) >> PMIC - 稳压器 - 线性 系列:- 产品培训模块:More Information on LDOs 标准包装:50 系列:- 稳压器拓扑结构:正，固定式 输出电压:3.3V 输入电压:最高 15V 电压 - 压降（标准）:1.1V @ 800mA 稳压器数量:1 电流 - 输出:800mA 电流 - 限制（最小）:800mA 工作温度:0°C ~ 125°C 安装类型:表面贴装 封装/外壳:TO-263-4，D²Pak（3 引线+接片），TO-263AA 供应商设备封装:D2PAK-3 包装:管件
ADP1720TRMZ5-EP-R7 制造商:AD 制造商全称:Analog Devices 功能描述:50 mA, High Voltage, Micropower Linear Regulator
ADP1720TRMZ-EP 功能描述:IC REG LDO ADJ 50MA 8-MSOP RoHS:是 类别:集成电路 (IC) >> PMIC - 稳压器 - 线性 系列:- 标准包装:1 系列:- 稳压器拓扑结构:正，固定式 输出电压:3V 输入电压:2.3 V ~ 5.5 V 电压 - 压降（标准）:0.035V @ 150mA 稳压器数量:2 电流 - 输出:150mA 电流 - 限制（最小）:300mA 工作温度:-40°C ~ 125°C 安装类型:表面贴装 封装/外壳:6-UFDFN 裸露焊盘，6-TMLF? 供应商设备封装:6-TMLF?（1.6x1.6） 包装:Digi-Reel® 产品目录页面:1104 (CN2011-ZH PDF) 其它名称:576-3018-6
ADP1720TRMZ-EP-R7 功能描述:Linear Voltage Regulator IC Positive Adjustable 1 Output 1.225 V ~ 5 V 50mA 8-MSOP 制造商:analog devices inc. 系列:- 包装:* 零件状态:有效 稳压器拓扑:正，可调式 电压 - 输出:1.225 V ~ 5 V 电流 - 输出:50mA 电压 - 跌落（典型值）:0.275V @ 50mA 稳压器数:1 电压 - 输入:4 V ~ 28 V 电流 - 限制（最小值）:55mA 工作温度:-55°C ~ 125°C 安装类型:表面贴装 封装/外壳:8-TSSOP，8-MSOP（0.118"，3.00mm 宽） 供应商器件封装:8-MSOP 标准包装:1,000
ADP172ACBZ-1.0-R7 功能描述:IC REG LDO 1V .3A 4WLCSP 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