參數(shù)資料
型號： LTC3544EUD
廠商： LINEAR TECHNOLOGY CORP
元件分類： 穩(wěn)壓器
英文描述： 0.8 A SWITCHING REGULATOR, 2700 kHz SWITCHING FREQ-MAX, PQCC16
封裝： 3 X 3 MM, LEAD FREE, PLASTIC, MO220WEED-2, QFN-16
文件頁數(shù)： 10/16頁
文件大?。?/td> 295K
代理商： LTC3544EUD
LTC3544
3
3544fa
ELECTRICAL CHARACTERISTICS The ● denotes the specications which apply over the full operating
temperature range, otherwise specications are at TA = 25°C. VIN = 3.6V unless otherwise noted.
SYMBOL
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
IS
Input DC Bias Current Active Mode
(Four Regulators Enabled)
VFB = 0.7V, ILOAD = 0A, 2.25MHz
825
1100
μA
Sleep Mode
(Four Regulators Enabled)
VFB = 0.9V, ILOAD = 0A, 2.25MHz
70
80
μA
Shutdown
0.1
2
μA
fOSC
Oscillator Frequency
VIN = 3V
VIN = 2.5V to 5.5V
●
1.8
2.25
2.7
MHz
VRUN(HIGH)
RUNx Input High Voltage
●
1.0
V
VRUN(LOW)
RUNx Input Low Voltage
●
0.3
V
ISWx
SWx Leakage
VRUN = 0V, VSW = 0V or 5.5V, VIN = 5.5V
±0.1
±1
μA
IRUNx
RUN Leakage Current
VIN = 5.5V
●
±0.1
±1
μA
IVFBx
VFBx Leakage Current
80
nA
tSS
Soft-Start Period
VFB = 7.5% to 92.5% Full Scale
650
875
1200
μs
VUVLO
Undervoltage Lockout
●
1.9
2.25
V
Individual Regulator Characteristics
Regulator SW300 – 300mA
IPK
Peak Switch Current Limit
VFB < VFBREG, Duty Cycle < 35%
400
600
800
mA
IS300
Input DC Bias Current–Reg SW300 Only
Burst Mode Operation (Sleep)
VFB = 0.9V, ILOAD = 0A, 2.25MHz
32
μA
RPFET
RDS(ON) of P-Channel FET (Note 7)
ISW = 100mA
0.55
Ω
RNFET
RDS(ON) of N-Channel FET (Note 7)
ISW = –100mA
0.50
Ω
Regulator SW200A – 200mA
IPK
Peak Switch Current Limit
VFB < VFBREG, Duty Cycle < 35%
300
400
500
mA
IS200
Input DC Bias Current–Reg SW200A Only
Burst Mode Operation (Sleep)
VFB = 0.9V, ILOAD = 0A, 2.25MHz
32
μA
RPFET
RDS(ON) of P-Channel FET (Note 7)
ISW = 100mA
0.65
Ω
RNFET
RDS(ON) of N-Channel FET (Note 7)
ISW = –100mA
0.60
Ω
Regulator SW200B – 200mA
IPK
Peak Switch Current Limit
VFB < VFBREG, Duty Cycle < 35%
300
400
500
mA
IS200
Input DC Bias Current–Reg SW200B Only
Burst Mode Operation (Sleep)
VFB = 0.9V, ILOAD = 0A, 2.25MHz
32
μA
RPFET
RDS(ON) of P-Channel FET (Note 7)
ISW = 100mA
0.65
Ω
RNFET
RDS(ON) of N-Channel FET (Note 7)
ISW = –100mA
0.60
Ω
Regulator SW100 – 100mA
IPK
Peak Switch Current Limit
VFB < VFBREG, Duty Cycle < 35%
200
300
400
mA
IS100
Input DC Bias Current–Reg SW100B Only
Burst Mode Operation (Sleep)
VFB = 0.9V, ILOAD = 0A, 2.25MHz
32
μA
RPFET
RDS(ON) of P-Channel FET (Note 7)
ISW = 100mA
0.80
Ω
RNFET
RDS(ON) of N-Channel FET (Note 7)
ISW = –100mA
0.75
Ω
Note 1: Stresses beyond those listed under Absolute Maximum Ratings
may cause permanent damage to the device. Exposure to any Absolute
Maximum Rating condition for extended periods may affect device
reliability and lifetime.
Note 2: The LTC3544E is guaranteed to meet performance specications
from 0°C to 85°C. Specications over the –40°C to 85°C operating
temperature range are assured by design, characterization and correlation
with statistical process controls.
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參數(shù)描述
LTC3544EUD#PBF 功能描述:IC REG BUCK SYNC ADJ QUAD 16QFN RoHS:是 類別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - DC DC 開關(guān)穩(wěn)壓器 系列:- 標準包裝:250 系列:- 類型:降壓（降壓） 輸出類型:固定 輸出數(shù):1 輸出電壓:1.2V 輸入電壓:2.05 V ~ 6 V PWM 型:電壓模式 頻率 - 開關(guān):2MHz 電流 - 輸出:500mA 同步整流器:是 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:6-UFDFN 包裝:帶卷 (TR) 供應(yīng)商設(shè)備封裝:6-SON（1.45x1） 產(chǎn)品目錄頁面:1032 (CN2011-ZH PDF) 其它名稱:296-25628-2
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LTC3544EUD-TR 制造商:LINER 制造商全稱:Linear Technology 功能描述:Quad Synchronous Step-Down Regulator: 2.25MHz, 300mA, 200mA, 200mA, 100mA
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