參數(shù)資料
型號(hào)： LTC3544BEUD#TR
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, PLASTIC, MO-220WEED-2, QFN-16
文件頁(yè)數(shù)： 12/18頁(yè)
文件大?。?/td> 288K
代理商： LTC3544BEUD#TR
LTC3544B
3544bfb
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 LTC3544BE is guaranteed to meet performance specifications
from 0°C to 85°C. Specifications over the –40°C to 85°C operating
temperature range are assured by design, characterization and correlation
with statistical process controls.
Note 3: TJ is calculated from the ambient temperature TA and power
dissipation PD according to the following formula:
TJ = TA + (PD)(68°C/W).
SYMBOL
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
VRUN(HIGH)
RUNx Input High Voltage
l
1.0
V
VRUN(LOW)
RUNx Input Low Voltage
l
0.3
V
ILSW
SWx Leakage
VRUN = 0V, VSW = 0V or 5.5V, VIN = 5.5V
±0.1
±1
A
IRUN
RUN Leakage Current
VIN = 5.5V
l
±0.1
±1
A
IVFB
VFBx Leakage Current
80
nA
tSS
Soft-Start Period
VFB = 7.5% to 92.5% Full Scale
650
875
1200
s
VUVLO
Undervoltage Lockout
l
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
Active Mode (Pulse Skip)
VFB = 0.7V, ILOAD = 0A, 2.25MHz
320
A
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
Active Mode (Pulse Skip)
VFB = 0.7V, ILOAD = 0A, 2.25MHz
320
A
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
Active Mode (Pulse Skip)
VFB = 0.7V, ILOAD = 0A, 2.25MHz
320
A
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
Active Mode (Pulse Skip)
VFB = 0.7V, ILOAD = 0A, 2.25MHz
320
A
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
elecTrical characTerisTics The
l
denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at TA = 25°C. VIN = 3.6V unless otherwise noted.
Note 4: This IC includes overtemperature protection that is intended
to protect the device during momentary overload conditions. Junction
temperature will exceed 125°C when overtemperature is active.
Continuous operation above the specified maximum operating junction
temperature may impair device reliability.
Note 5: The LTC3544B is tested in a proprietary test mode that connects
VFB to the output of the error amplifier.
Note 6: Load regulation is inferred by measuring the regulation loop gain.
Note 7: The QFN switch on-resistance is guaranteed by correlation to
wafer level measurements.
Note 8: Guaranteed by long-term current density limitations.
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
LTC3544EUD 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
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(kāi)關(guān)穩(wěn)壓器 系列:- 標(biāo)準(zhǔn)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(kāi)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(yè)面:1032 (CN2011-ZH PDF) 其它名稱:296-25628-2
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LTC3544EUDPBF 制造商:Linear Technology 功能描述:2.25MHz Sync Step-Down Converter LTC3544
LTC3544EUD-PBF 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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