Datasheet.kr   

ADP7157 데이터시트 PDF




Analog Devices에서 제조한 전자 부품 ADP7157은 전자 산업 및 응용 분야에서
광범위하게 사용되는 반도체 소자입니다.


 

PDF 형식의 ADP7157 자료 제공

부품번호 ADP7157 기능
기능 RF Linear Regulator
제조업체 Analog Devices
로고 Analog Devices 로고


ADP7157 데이터시트 를 다운로드하여 반도체의 전기적 특성과 매개변수에 대해 알아보세요.




전체 24 페이지수

미리보기를 사용할 수 없습니다

ADP7157 데이터시트, 핀배열, 회로
Data Sheet
1.2 A, Ultralow Noise,
High PSRR, RF Linear Regulator
ADP7157
FEATURES
Input voltage range: 2.3 V to 5.5 V
Adjustable output voltage range (VOUT): 1.2 V to 3.3 V
Maximum load current: 1.2 A
Low noise
0.9 µV rms typical output noise from 100 Hz to 100 kHz
1.6 µV rms typical output noise from 10 Hz to 100 kHz
Noise spectral density: 1.7 nV/√Hz from 10 kHz to 1 MHz
Power supply rejection ratio (PSRR)
82 dB from 1 kHz to 100 kHz
55 dB at 1 MHz
Dropout voltage: 120 mV typical at IOUT = 1.2 A, VOUT = 3.3 V
Initial accuracy: ±0.6% at ILOAD = 10 mA
Accuracy over line, load, and temperature: ±1.5%
Operating supply current (IGND)
4.0 mA typical at 0 µA
7.0 mA typical at 1.2 A
Low shutdown current: 0.2 μA typical
Stable with a 10 µF ceramic output capacitor
10-lead, 3 mm × 3 mm LFCSP and 8-lead SOIC packages
Precision enable
Supported by ADIsimPower tool
APPLICATIONS
Regulation to noise sensitive applications: phase-locked
loops (PLLs), voltage controlled oscillators (VCOs), and
PLLs with integrated VCOs
Communications and infrastructure
Backhaul and microwave links
GENERAL DESCRIPTION
The ADP7157 is an adjustable linear regulator that operates from
2.3 V to 5.5 V and provides up to 1.2 A of output current. Output
voltages from 1.2 V to 3.3 V are possible depending on the model.
Using an advanced proprietary architecture, the device provides
high power supply rejection and ultralow noise, achieving excellent
line and load transient response with only a 10 µF ceramic
output capacitor.
The ADP7157 is available in four models that optimize power
dissipation and PSRR performance as a function of the input
and output voltage. See Table 9 and Table 10 for selection guides.
The typical output noise the ADP7157 regulator is 0.9 μV rms from
100 Hz to 100 kHz and 1.7 nV/√Hz for noise spectral density from
10 kHz to 1 MHz. The ADP7157 is available in 10-lead, 3 mm ×
3 mm LFCSP and 8-lead SOIC packages, making it not only a
very compact solution, but also providing excellent thermal
performance for applications requiring up to 1.2 A of output
current in a small, low profile footprint.
Rev. A
Document Feedback
Information furnished by Analog Devices is believed to be accurate and reliable. However, no
responsibilityisassumedbyAnalogDevices for itsuse,nor foranyinfringementsofpatentsor other
rights of third parties that may result from its use. Specifications subject to change without notice. No
license is granted by implication or otherwise under any patent or patent rights of Analog Devices.
Trademarksandregisteredtrademarksarethepropertyoftheirrespectiveowners.
TYPICAL APPLICATION CIRCUIT
VIN = 3.8V
CIN
10µF
ON
OFF
CBYP
1µF
CREG
1µF
ADP7157
VIN VOUT
VOUT_SENSE
EN REF
BYP
REF_SENSE
VREG
GND
VOUT = 3.3V
COUT
10µF
CREF
1µF
R1
VOUT = 1.2V × (R1 + R2)/R2
R2
1kΩ < R2 < 200kΩ
Figure 1. Regulated 3.3 V Output from a 3.8 V Input
Table 1. Related Devices
Model
Input
Output
Voltage Current
ADP7159, 2.3 V to 2 A
ADP7158 5.5 V
ADP7156 2.3 V to 1.2 A
5.5 V
ADM7150, 4.5 V to 800 mA
ADM7151 16 V
ADM7154, 2.3 V to 600 mA
ADM7155 5.5 V
ADM7160 2.2 V to 200 mA
5.5 V
1k
100
Fixed/
Adjustable
Fixed
Fixed/
Adjustable
Fixed/
Adjustable
Fixed/
Adjustable
Fixed
Package
10-lead LFCSP/
8-lead SOIC
10-lead LFCSP/
8-lead SOIC
8-lead LFCSP/
8-lead SOIC
8-lead LFCSP/
8-lead SOIC
6-lead LFCSP/
5-lead TSOT
CBYP = 1µF
CBYP = 10µF
CBYP = 100µF
CBYP = 1000µF
10
1
0.1
10 100 1k 10k 100k 1M 10M
FREQUENCY (Hz)
Figure 2. Noise Spectral Density at Different Values of CBYP, VOUT = 3.3 V
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781.329.4700
©2016 Analog Devices, Inc. All rights reserved.
Technical Support
www.analog.com




ADP7157 pdf, 반도체, 판매, 대치품
Data Sheet
ADP7157
SPECIFICATIONS
VIN
=
V1
OUT_MAX
+
0.5
V;
VEN
=
VIN;
ILOAD
=
10
mA;
CIN
=
COUT
=
10
µF;
CREG
=
CREF
=
CBYP
=
1
µF;
TA
=
25°C
for
typical
specifications;
TA = −40°C to +125°C for minimum/maximum specifications, unless otherwise noted.
Table 2.
Parameter
INPUT VOLTAGE RANGE
LOAD CURRENT
OPERATING SUPPLY CURRENT
Symbol
VIN
ILOAD
IGND
SHUTDOWN CURRENT
NOISE2
Output Noise
IIN-SD
OUTNOISE
Noise Spectral Density
POWER SUPPLY REJECTION RATIO2
ADP7157-01
OUTNSD
PSRR
ADP7157-02
ADP7157-03
ADP7157-04
OUTPUT VOLTAGE ACCURACY
Output Voltage3
Initial Accuracy
VOUT
VOUT
REGULATION
Line
Load4
CURRENT-LIMIT THRESHOLD5
REF
VOUT
DROPOUT VOLTAGE6
PULL-DOWN RESISTANCE
VOUT
VREG
REF
BYP
START-UP TIME2, 7
VOUT
VREG
REF
THERMAL SHUTDOWN2
Threshold
Hysteresis
∆VOUT/∆VIN
∆VOUT/∆IOUT
ILIMIT
VDROPOUT
VOUT-PULL
VREG-PULL
VREF-PULL
VBYP-PULL
tSTART-UP
tREG-START-UP
tREF-START-UP
TSSD
TSSD-HYS
Test Conditions/Comments
ILOAD = 0 µA
ILOAD = 1.2 A
EN = ground
VOUT = 1.2 V to 3.3 V
10 Hz to 100 kHz
100 Hz to 100 kHz
10 kHz to 1 MHz
ILOAD = 1.2 A
1 kHz to 100 kHz, VIN = 2.3 V, VOUT = 1.8 V
1 MHz, VIN = 2.3 V, VOUT = 1.8 V
1 kHz to 100 kHz, VIN = 2.8 V, VOUT = 2.3 V
1 MHz, VIN = 2.8 V, VOUT = 2.3 V
1 kHz to 100 kHz, VIN = 3.4 V, VOUT = 2.9 V
1 MHz, VIN = 3.4 V, VOUT = 2.9 V
1 kHz to 100 kHz, VIN = 3.8 V, VOUT = 3.3 V
1 MHz, VIN = 3.8 V, VOUT = 3.3 V
ILOAD = 10 mA, TA = 25°C
10 mA < ILOAD < 1.2 A, TA = 25°C
10 mA < ILOAD < 1.2 A, TA = −40°C to +125°C
VIN = VOUT_MAX + 0.5 V to 5.5 V
IOUT = 10 mA to 1.2 A
IOUT = 600 mA, VOUT = 3.3 V
IOUT = 1.2 A, VOUT = 3.3 V
EN = 0 V, VIN = 5.5 V
VOUT = 1 V
VREG = 1 V
VREF = 1 V
VBYP = 1 V
VOUT = 3.3 V
TJ rising
Min Typ Max Unit
2.3 5.5 V
1.2 A
4.0 8.0 mA
7.0 12.0 mA
0.2 4
µA
1.6 µV rms
0.9 µV rms
1.7 nV/√Hz
70 dB
52 dB
72 dB
53 dB
75 dB
55 dB
82 dB
55 dB
1.2 3.3 V
−0.6 +0.6 %
−1.0 +1.0 %
−1.5 +1.5 %
−0.1 +0.1 %/V
0.3 %/A
22 mA
1.4 1.8 2.4 A
60 80
mV
120 170 mV
650 Ω
31 kΩ
850 Ω
650 Ω
1.2 ms
0.6 ms
0.5 ms
150 °C
15 °C
Rev. A | Page 3 of 23

4페이지










ADP7157 전자부품, 판매, 대치품
ADP7157
Data Sheet
PIN CONFIGURATIONS AND FUNCTION DESCRIPTIONS
VOUT 1
10 VIN
VOUT 2
VOUT_SENSE 3
BYP 4
ADP7157
TOP VIEW
(Not to Scale)
9 VIN
8 VREG
7 REF
EN 5
6 REF_SENSE
NOTES
1. THE EXPOSED PAD IS LOCATED ON THE BOTTOM OF
THE PACKAGE. THE EXPOSED PAD ENHANCES
THERMAL PERFORMANCE, AND IT IS ELECTRICALLY
CONNECTED TO GROUND INSIDE THE PACKAGE.
CONNECT THE EP TO THE GROUND PLANE ON THE
BOARD TO ENSURE PROPER OPERATION.
Figure 3. 10-Lead LFCSP Pin Configuration
VOUT 1
8 VIN
VOUT_SENSE 2 ADP7157 7 VREG
BYP 3
TOP VIEW
(Not to Scale)
6
REF
EN 4
5 REF_SENSE
NOTES
1. THE EXPOSED PAD IS LOCATED ON THE BOTTOM OF
THE PACKAGE. THE EXPOSED PAD ENHANCES
THERMAL PERFORMANCE, AND IT IS ELECTRICALLY
CONNECTED TO GROUND INSIDE THE PACKAGE.
CONNECT THE EP TO THE GROUND PLANE ON THE
BOARD TO ENSURE PROPER OPERATION.
Figure 4. 8-Lead SOIC Pin Configuration
Table 6. Pin Function Descriptions
Pin No.
LFCSP SOIC
Mnemonic
1, 2 1
VOUT
32
VOUT_SENSE
43
BYP
54
EN
65
REF_SENSE
76
87
9, 10 8
REF
VREG
VIN
EP
Description
Regulated Output Voltage. Bypass VOUT to ground with a 10 μF or greater capacitor.
Output Sense. VOUT_SENSE is internally connected to VOUT with a 10 Ω resistor. Connect VOUT_SENSE
as close to the load as possible.
Low Noise Bypass Capacitor. Connect a 1 μF or greater capacitor from the BYP pin to ground to
reduce noise. Do not connect a load to this pin.
Enable. Drive EN high to turn on the regulator, and drive EN low to turn off the regulator. For
automatic startup, connect EN to VIN.
Reference Sense. This pin sets the output voltage with an external resistor divider.
VOUT = VREF × (R1 + R2)/R2, where VREF = 1.2 V. Connect REF_SENSE to the REF pin. Do not connect
REF_SENSE to VOUT or ground.
Low Noise Reference Voltage Output. Bypass REF to ground with a 1 μF or greater capacitor. Short
REF_SENSE to REF for fixed output voltages. Do not connect a load to this pin.
Regulated Input Supply Voltage to the LDO Amplifier. Bypass VREG to ground with a 1 μF or greater
capacitor.
Regulator Input Supply Voltage. Bypass VIN to ground with a 10 μF or greater capacitor.
Exposed Pad. The exposed pad is located on the bottom of the package. The exposed pad enhances
thermal performance, and it is electrically connected to ground inside the package. Connect the
exposed pad to the ground plane on the board to ensure proper operation.
Rev. A | Page 6 of 23

7페이지


구       성 총 24 페이지수
다운로드[ ADP7157.PDF 데이터시트 ]

당사 플랫폼은 키워드, 제품 이름 또는 부품 번호를 사용하여 검색할 수 있는

포괄적인 데이터시트를 제공합니다.


구매 문의
일반 IC 문의 : 샘플 및 소량 구매
-----------------------------------------------------------------------

IGBT, TR 모듈, SCR 및 다이오드 모듈을 포함한
광범위한 전력 반도체를 판매합니다.

전력 반도체 전문업체

상호 : 아이지 인터내셔날

사이트 방문 :     [ 홈페이지 ]     [ 블로그 1 ]     [ 블로그 2 ]



관련 데이터시트

부품번호상세설명 및 기능제조사
ADP7156

RF Linear Regulator

Analog Devices
Analog Devices
ADP7157

RF Linear Regulator

Analog Devices
Analog Devices

DataSheet.kr       |      2020   |     연락처      |     링크모음      |      검색     |      사이트맵