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NCP1411 데이터시트 PDF




ON에서 제조한 전자 부품 NCP1411은 전자 산업 및 응용 분야에서
광범위하게 사용되는 반도체 소자입니다.


PDF 형식의 NCP1411 자료 제공

부품번호 NCP1411 기능
기능 Sync-Rect PFM Step-Up DC-DC Converter
제조업체 ON
로고 ON 로고


NCP1411 데이터시트 를 다운로드하여 반도체의 전기적 특성과 매개변수에 대해 알아보세요.




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NCP1411 데이터시트, 핀배열, 회로
NCP1411
Sync−Rect PFM Step−Up
DC−DC Converter with
Low−Battery Detector and
Ring−Killer
NCP1411 is a monolithic micropower high frequency Boost
(stepup) voltage switching converter IC specially designed for
battery operated handheld electronic products up to 250 mA loading.
It integrates Synchronous Rectifier for improving efficiency as well as
eliminating the external Schottky Diode. High switching frequency
(up to 600 kHz) allows low profile inductor and output capacitor being
used. LowBattery Detector, LogicControlled Shutdown and
CyclebyCycle Current Limit provide valueadded features for
various batteryoperated applications. The innovative RingKiller
circuitry guarantees quiet operation in discontinuous conduction
mode. With all these functions ON, the device quiescent supply
current is only 9.0 mA typical. This device is available in the space
saving compact Micro8t package.
Features
PbFree Package is Available
High Efficiency, up to 92%
Very Low Device Quiescent Supply Current of 9.0 mA Typical
Builtin Synchronous Rectifier (PFET) Eliminates One External
Schottky Diode
High Switching Frequency (up to 600 kHz) Allows use of Small Size
Inductor
High Accuracy Reference Output, 1.19 V $ 0.6% @ 25°C, can
supply more than 2.5 mA when VOUT 3.3 V
RingKiller for Quiet Operation in Discontinuous Conduction Mode
1.0 V Startup at No Load Guaranteed
Output Voltage from 1.5 V to 5.5 V Adjustable
Output Current up to 250 mA @ VIN = 2.5 V, VOUT = 3.3 V
LogicControlled Shutdown
Open Drain LowBattery Detector Output
1.0 A Cycle by Cycle Current Limit
Low Profile and Minimum External Parts
Compact Micro8 Package
Typical Applications
Personal Digital Assistant (PDA)
Handheld Digital Audio Product
Camcorder and Digital Still Camera
Handheld Instrument
Conversion from One or Two NiMH or NiCd, or One Liion Cell
to 3.3 V/5.0 V
http://onsemi.com
MARKING
DIAGRAM
8
1
Micro8
DM SUFFIX
CASE 846A
A2
AYW
A2 = Device Marking
A = Assembly Location
Y = Year
W = Work Week
PIN CONNECTIONS
FB 1
LBI/EN 2
LBO 3
REF 4
8 OUT
7 LX
6 GND
5 BAT
(Top View)
ORDERING INFORMATION
Device
Package
Shipping
NCP1411DMR2
Micro8 4000 Tape & Reel
NCP1411DMR2G Micro8 4000 Tape & Reel
(PbFree)
†For information on tape and reel specifications,
including part orientation and tape sizes, please
refer to our Tape and Reel Packaging Specifications
Brochure, BRD8011/D.
© Semiconductor Components Industries, LLC, 2006
July, 2006 Rev. 4
1
Publication Order Number:
NCP1411/D




NCP1411 pdf, 반도체, 판매, 대치품
FB
1
REF
4
LBI/EN
2
NCP1411
VBAT
BAT
M3 5
Chip
Enable
+
PFM
ZLC +
+
20 mV
CONTROL LOGIC
_ZCUR
_MSON
_MAINSW2ON
_PWQONCE
_CEN
_PFM
_MAINSWOFD
_SYNSW2ON
VDD
GND
LX
VDD 7
VOUT
M2 OUT
8
SENSE-
FET
M1
6
VDD GND
Voltage
Reference
+
_SYNSWOFD
_VREFOK
_ILIM
ILIM
+
+
GND
RSENSE
GND
GND
LBO
3
Figure 2. Simplified Functional Diagram
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NCP1411 전자부품, 판매, 대치품
NCP1411
3.0
2.0
1.0
3V
0
1.0
2.0
3.0
1
2.2 V
L = 22 mH
VOUT = 3.3 V
CIN = 10 mF
COUT = 33 mF
VIN = 1.8 V
10 100
ILOAD, OUTPUT LOADING CURRENT (mA)
1000
Figure 15. Output Voltage Change versus Load
Current
3.0
2.0
1.0
0 3V
1.0
2.0
3.0
1
L = 15 mH
VOUT = 3.3 V
CIN = 10 mF
COUT = 33 mF
2.2 V
VIN = 1.8 V
10 100 1000
ILOAD, OUTPUT LOADING CURRENT (mA)
Figure 16. Output Voltage Change versus Load
Current
200
160
120
80
100 mA
40
200 mA
VOUT = 3.3 V
CIN = 10 mF
COUT = 33 mF
L = 22 mH
200
160
120
80 100 mA
40
200 mA
VOUT = 3.3 V
CIN = 10 mF
COUT = 33 mF
L = 15 mH
0
1 1.5 2 2.5 3
VBATT, BATTERY INPUT VOLTAGE (V)
Figure 17. Battery Input Voltage versus Output
Ripple Voltage
0
1 1.5 2 2.5 3
VBATT, BATTERY INPUT VOLTAGE (V)
Figure 18. Battery Input Voltage versus Output
Ripple Voltage
20
16
12
8
4
0
0123456 7
VOUT, INPUT VOLTAGE AT OUT PIN (V)
Figure 19. No Load Operating Current versus
Input Voltage at OUT Pin
(VIN = 2.2 V, VOUT = 3.3 V, ILOAD = 100 mA; L = 22 mH,
COUT = 33 mF)
Upper Trace: Output Voltage Waveform, 2.0 V/Division
Lower Trace: Shutdown Pin Waveform, 1.0 V/Division
Figure 20. Startup Transient Response
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