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부품번호 | LXDC2HL25G-341 기능 |
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기능 | Micro DC-DC converter | ||
제조업체 | Murata | ||
로고 | |||
전체 25 페이지수
LXDC2HL-G Series
Micro DC-DC converter
1. Features
Low EMI noise and small footprint (5mm2) using inductor-embedded ferrite substrate
PFM/PWM automatic mode switching function
Smooth mode transient between PFM mode and PWM mode
with low-ripple-voltage PFM mode
2% DC voltage accuracy over full load current range
Wide input voltage range : 2.3~5.5V
Fixed output voltage : 0.8V – 2. 5V (factory setting)
Internal soft start, overcurrent protection
2. Description
The LXDC2HL series is a low power step-down DCDC converter, which is suitable for a space-limited or a
noise-sensitive application. The device utilizes an inductor-embedded ferrite substrate, and the substrate
eliminates radiated EMI noise and conduction noise efficiently.
By just putting input/output capacitors, it can be used as a LDO replacement. Its low noise feature and easy to
assembly feature assures reliable power supply quality.
The device works in PFM mode at light load and it extends the battery life. At heavy load, its control mode
changes to PMW mode automatically and it keeps high efficiency using synchronous rectifying technology.
The device keeps good output voltage accuracy even in PFM mode. It keeps 2% DC voltage accuracy over full
current range, and shows very smooth mode transient between PFM mode and PWM mode.
3. Typical Application Circuit
Enable
VBAT
LLXXDDCC2H2LH-LG
EN
Vin Vout
GND
Vout
10uF
1
July. 2015
LXDC2HL-G Series
Micro DC-DC converter
6-2 Electrical characteristics (Ta=25℃)
Parameter
Symbol
Input voltage
UVLO voltage
Vin
UVLO
Condition
Input leak current
lin-off Vin=3.7V, EN=0V
Output voltage
accuracy
Load current range
Ripple voltage
Efficiency
EN control voltage
SW Frequency
Vout
Iout
Vrpl
EFF
VENH
VENL
Fosc
LXDC2HL10G-301
LXDC2HL11G-306
Vin-Vout>1V
LXDC2HL12G-302
LXDC2HL13G-441
LXDC2HL15G-303
LXDC2HL18G-304
Vin-Vout>0.7V LXDC2HL25G-341
LXDC2HL10G-301
LXDC2HL11G-306
LXDC2HL12G-302
LXDC2HL13G-441
LXDC2HL15G-303
LXDC2HL18G-304
LXDC2HL25G-341
Vin=3.7V,
Iout=50mA,
BW=100MHz
LXDC2HL10G-301
LXDC2HL11G-306
LXDC2HL12G-302
LXDC2HL13G-441
LXDC2HL15G-303
LXDC2HL18G-304
LXDC2HL25G-341
LXDC2HL10G-301
LXDC2HL11G-306
Vin=3.7V,
Iout=100mA
LXDC2HL12G-302
LXDC2HL13G-441
LXDC2HL15G-303
LXDC2HL18G-304
LXDC2HL25G-341
ON ; Enable
OFF ; Disable
Min. Typ. Max.
2.3 3.7 5.5
1.0 1.4 1.8
Unit
V
V
0 2 uA
0.976 1.0 1.024
1.076 1.1 1.124
1.176 1.2 1.224
1.274 1.3 1.326
V
1.47 1.5 1.53
1.764 1.8 1.836
2.45 2.5 2.55
0 300
0 250
0 250
0 250 mA
0 200
0 200
0 200
15
15
15
15 mVpp
15
15
15
80
81
82
83 %
85
86
90
1.4 Vin V
0 0.25 V
1.2 MHz
4
July. 2015
4페이지 LXDC2HL-G Series
Micro DC-DC converter
Capacitor B1 Life vs Capacitor Case temperature
100000
10000
1000
Vin=5V
Vin=3.6V
Vin=3.3V
Vin=2.5V
100
10
1
0.1
20
40 60 80 100
CapCaacpaitcoitrorCCassee Tetemmprpaeturraetu(orCe()℃)
120
The following steps should be taken before the design fix of user’s set for reliable operation.
1. The ambient temperature of the device should be kept below 85 oC
2. The IC temperature should be measured on the worst condition of each application. The temperature must be
kept below 125 oC. An appropriate de-rating of temperature and/or output current should be taken.
3. The MLCC temperature should be measured on the worst condition of each application. Considering the
above figure, it should be checked if the expected B1 life of MLCC is acceptable or not.
7
July. 2015
7페이지 | |||
구 성 | 총 25 페이지수 | ||
다운로드 | [ LXDC2HL25G-341.PDF 데이터시트 ] |
당사 플랫폼은 키워드, 제품 이름 또는 부품 번호를 사용하여 검색할 수 있는 |
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 ] |
부품번호 | 상세설명 및 기능 | 제조사 |
LXDC2HL25G-341 | Micro DC-DC converter | Murata |
DataSheet.kr | 2020 | 연락처 | 링크모음 | 검색 | 사이트맵 |