数据搜索系统,热门电子元器件搜索
  Chinese  ▼
ALLDATASHEETCN.COM

X  

ADP7182ACPZ-5.0-R7 数据表(PDF) 21 Page - Analog Devices

部件名 ADP7182ACPZ-5.0-R7
功能描述  Positive or negative enable logic
Download  31 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
制造商  AD [Analog Devices]
网页  http://www.analog.com
标志 AD - Analog Devices

ADP7182ACPZ-5.0-R7 数据表(HTML) 21 Page - Analog Devices

Back Button ADP7182ACPZ-5.0-R7 Datasheet HTML 17Page - Analog Devices ADP7182ACPZ-5.0-R7 Datasheet HTML 18Page - Analog Devices ADP7182ACPZ-5.0-R7 Datasheet HTML 19Page - Analog Devices ADP7182ACPZ-5.0-R7 Datasheet HTML 20Page - Analog Devices ADP7182ACPZ-5.0-R7 Datasheet HTML 21Page - Analog Devices ADP7182ACPZ-5.0-R7 Datasheet HTML 22Page - Analog Devices ADP7182ACPZ-5.0-R7 Datasheet HTML 23Page - Analog Devices ADP7182ACPZ-5.0-R7 Datasheet HTML 24Page - Analog Devices ADP7182ACPZ-5.0-R7 Datasheet HTML 25Page - Analog Devices Next Button
Zoom Inzoom in Zoom Outzoom out
 21 / 31 page
background image
Data Sheet
ADP7182
Rev. I | Page 21 of 31
THEORY OF OPERATION
The ADP7182 is a low quiescent current, LDO linear regulator
that operates from −2.7 V to −28 V and can provide up to −200 mA
of output current. Drawing a low −650 μA of quiescent current
(typical) at full load makes the ADP7182 ideal for battery-powered
portable equipment. Maximum shutdown current consumption
is −8 μA at room temperature.
Optimized for use with small 2.2 μF ceramic capacitors, the
ADP7182 provides excellent transient performance.
VOUT
GND
EN
VIN
REFERENCE
SHUTDOWN
SHORT
CIRCUIT
THERMAL
PROTECT
VREG
Figure 77. Fixed Output Voltage Internal Block Diagram
VOUT
ADJ
GND
EN
VIN
–1.22V
REFERENCE
SHUTDOWN
SHORT
CIRCUIT
THERMAL
PROTECT
VREG
Figure 78. Adjustable Output Voltage Internal Block Diagram
Internally, the ADP7182 consists of a reference, an error amplifier,
a feedback voltage divider, and an NMOS pass transistor. Output
current is delivered via the NMOS pass transistor, which is
controlled 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 more positive
than the reference voltage, the gate of the NMOS transistor is
pulled toward GND, allowing more current to pass and increasing
the output voltage. If the feedback voltage is more negative than
the reference voltage, the gate of the NMOS transistor is pulled
toward −VIN, allowing less current to pass and decreasing the
output voltage.
The ESD protection devices are shown in the block diagram as
Zener diodes (see Figure 77 and Figure 78).
ADJUSTABLE MODE OPERATION
The ADP7182 is available in a fixed output voltage and an
adjustable mode version with an output voltage that can be set
to between −1.22 V and −27 V by an external voltage divider. The
output voltage can be set according to
−VOUT = −1.22 V (1 + RFB1/RFB2)
RFB2 must be less than 120 kΩ to minimize the output voltage errors
due to the leakage current of the ADJ pin. The error voltage caused
by the ADJ pin leakage current is the parallel combination of RFB1
and RFB2 times the ADJ pin leakage current.
For example, when RFB1 = RFB2 = 120 kΩ, the output voltage is
−2.44 V and the error due to the typical ADJ pin leakage current
(10 nA) is 60 kΩ times 10 nA, or 6 mV. This example results in
an output voltage error of 0.245%.
The addition of a small capacitor (~100 pF) in parallel with
RFB1 can improve the stability of the ADP7182. Larger values of
capacitance also reduce the noise and improve PSRR (see the
Noise Reduction of the Adjustable section).
RFB2
120kΩ
RFB1
120kΩ
GND
EN
ADJ
VIN
VOUT
ADP7182
ON
ON
–2V
OFF
0V
2V
VIN = –3V
VOUT = –2.44V
COUT
2.2µF
CIN
2.2µF
Figure 79. Setting Adjustable Output Voltage


类似零件编号 - ADP7182ACPZ-5.0-R7

制造商部件名数据表功能描述
logo
Anachip Corp
ADP7182ACPZ-5.0-R7 ANACHIP-ADP7182ACPZ-5.0-R7 Datasheet
768Kb / 28P
   ??8 V, ??00 mA, Low Noise, Linear Regulator
More results

类似说明 - ADP7182ACPZ-5.0-R7

制造商部件名数据表功能描述
logo
Artesyn Technologies
AIH ARTESYN-AIH Datasheet
454Kb / 2P
   Positive and Negative enable function
logo
M/A-COM Technology Solu...
MAAD-010305 MA-COM-MAAD-010305_15 Datasheet
688Kb / 6P
   Positive or Negative Voltage Control
MAAD-010305 MA-COM-MAAD-010305 Datasheet
688Kb / 6P
   Positive or Negative Voltage Control
logo
Anaren Microwave
MSK5000 ANAREN-MSK5000 Datasheet
780Kb / 7P
   DUAL POSITIVE/NEGATIVE, DUAL POSITIVE/NEGATIVE, FIXED VOLTAGE REGULATORS
logo
MORNSUN Science& Techno...
K7803-1000 MORNSUN-K7803-1000 Datasheet
109Kb / 3P
   SINGLE POSITIVE /NEGATIVE OUTPUT
K7803-500 MORNSUN-K7803-500 Datasheet
118Kb / 3P
   SINGLE POSITIVE/NEGATIVE OUTPUT
logo
National Semiconductor ...
LH7001 NSC-LH7001 Datasheet
358Kb / 10P
   POSITIVE / NEGATIVE ADJUSTABLE REGULATOR
logo
Schneider Electric
BMXDAI1602 SCHNEIDER-BMXDAI1602 Datasheet
248Kb / 6P
   discrete input module X80 - 16 inputs - 24V AC/DC positive or negative
Apr 18, 2022
logo
Analog Devices
ADM2914 AD-ADM2914_10 Datasheet
371Kb / 16P
   Quad UV/OV Positive/Negative
REV. B
ADP5071 AD-ADP5071 Datasheet
1,002Kb / 28P
   Independent Positive and Negative Outputs
More results


Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31


数据表 下载

Go To PDF Page


链接网址




隐私政策
ALLDATASHEETCN.COM
ALLDATASHEET是否为您带来帮助?  [ DONATE ] 

关于 Alldatasheet   |   广告服务   |   联系我们   |   隐私政策   |   链接交换   |   制造商名单
All Rights Reserved©Alldatasheet.com


Mirror Sites
English : Alldatasheet.com  |   English : Alldatasheet.net  |   Chinese : Alldatasheetcn.com  |   German : Alldatasheetde.com  |   Japanese : Alldatasheet.jp
Russian : Alldatasheetru.com  |   Korean : Alldatasheet.co.kr  |   Spanish : Alldatasheet.es  |   French : Alldatasheet.fr  |   Italian : Alldatasheetit.com
Portuguese : Alldatasheetpt.com  |   Polish : Alldatasheet.pl  |   Vietnamese : Alldatasheet.vn
Indian : Alldatasheet.in  |   Mexican : Alldatasheet.com.mx  |   British : Alldatasheet.co.uk  |   New Zealand : Alldatasheet.co.nz
Family Site : ic2ic.com  |   icmetro.com