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부품번호 | LD6922 기능 |
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기능 | High PSRR CMOS LDO Regulator | ||
제조업체 | Leadtrend | ||
로고 | |||
LD6922
9/1/2011
500mA, Ultra-Low Noise, High PSRR CMOS LDO Regulator
with Soft Start Function
REV: 01
General Description
The LD6922 is a micro power linear regulator with
minimum output voltage drop during load transient,
featuring ultra-low noise, low-dropout and high ripple
rejection ratio for optimal performance of battery-powered
systems. This SS pin can suppress the noise and is built in
with soft start function. As well, the LD6922 is stable with
an output capacitor of 1μF which reduces the board space
and cost.
The LD6922 is available in a space saving SC82-4,
SOT23-5, SC70-5, SC70-6, and WDFN-6L 1.6mm x
1.6mm package.
+Patented
Features
z Wide Operating Input Voltage Range:2.5V to 5.5V
z Minimum Output Voltage Drop during Load Transient
z Ultra-Low Noise for RF Application
z Shutdown Current <1μA
z High PSRR 70dB@1kHz
z Stable with 1μF Output Capacitor
z Thermal Shutdown and Current Limiting Protection
z VOUT Discharge Function
z Soft Start Operation
z Fixed Output Voltage: 1.2V to 3.3V (step:0.1V), and
3.45V.
Applications
z Battery-Powered Equipment
z Hand-Held Instruments
z Palmtops, Notebook Computers
Typical Application
Fig. 1 Typical Application Circuit for General Purpose
Leadtrend Technology Corporation
LD6922-DS-01 September 2011
1
www.leadtrend.com.tw
Block Diagram (SC70-6)
LD6922
Absolute Maximum Ratings
VIN, VOUT Pin
SS, CE Pin
Power dissipation SC82-4@Ta=25°C
Package Thermal Resistance SC82-4
Power dissipation SOT23-5@Ta=25°C
Package Thermal Resistance SOT25
Power dissipation SC70-5@Ta=25°C
Package Thermal Resistance SC70-5
Power dissipation SC70-6@Ta=25°C
Package Thermal Resistance SC70-6
Power dissipation WDFN-6L 1.6×1.6 @TA=25°C
Package Thermal Resistance WDFN-6L 1.6×1.6
Maximum Junction Temperature
Operating Junction Temperature
Operating Ambient Temperature
Storage Temperature Range
Lead temperature (Soldering, 10sec)
ESD Level (Human Body Model)
ESD Level (Machine Model)
-0.3V~6V
-0.3V~ (VIN+0.3) V
300mW
333°C/W
400mW
250°C/W
300mW
333°C/W
300mW
333°C/W
571mW
175°C/W
150°C
-40°C to 125°C
-40°C to 85°C
-55°C to 125°C
260°C
2kV
200V
Caution:
Stresses beyond the ratings specified in “Absolute Maximum Ratings” may cause permanent damage to the device. This is a stress only
rating and operation of the device at these or any other conditions above those indicated in the operational sections of this specification
is not implied.
Leadtrend Technology Corporation
LD6922-DS-01 September 2011
4
www.leadtrend.com.tw
4페이지 LD6922
Typical Performance Characteristics
(VIN=VOUT+1V, CIN=4.7μF, COUT=4.7μF, CSS=22nF, TA =+25°C, unless otherwise stated.)
80
70
60
50
40
30
20
0.0 1
0. 1 1 10
Frequency (kHz)
Fig.8 Ripple Rejection vs. Frequ ency
10 0
VO CH2: 100μVrms/Div
LD6922GL-345
Fig.11 Output Noise (CSS=22nF)
Leadtrend Technology Corporation
LD6922-DS-01 September 2011
7
www.leadtrend.com.tw
7페이지 | |||
구 성 | 총 16 페이지수 | ||
다운로드 | [ LD6922.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 |
LD6922 | High PSRR CMOS LDO Regulator | Leadtrend |
DataSheet.kr | 2020 | 연락처 | 링크모음 | 검색 | 사이트맵 |