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參數(shù)資料
| 型號： | LTC3766MPUFD#PBF |
| 廠商： | LINEAR TECHNOLOGY CORP |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | SWITCHING CONTROLLER, 316 kHz SWITCHING FREQ-MAX, PQCC28 |
| 封裝： | 4 X 5 MM, LEAD FREE, PLASTIC, MO-220, QFN-28 |
| 文件頁數(shù)： | 45/60頁 |
| 文件大?。?/td> | 607K |
| 代理商： | LTC3766MPUFD#PBF |
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LTC3766
5
3766f
ELECTRICAL CHARACTERISTICS The
l
denotes the specifications which apply over the specified operating
junction temperature range, otherwise specifications are at TA = 25°C. (Note 2) VIN = 15V, GND = PGND = 0V, unless otherwise noted.
SYMBOL
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
Oscillator and Phase-Locked Loop
IFS/SYNC
FS/SYNC Pin Sourcing Current
20
μA
fHIGH
Oscillator High Frequency Set Point
VFS/SYNC = VCC
234
275
316
kHz
Δf (RFS/SYNC)
Oscillator Resistor Set Accuracy
18.75kΩ < RFS/SYNC < 125kΩ
l
–12
12
%
fPLL(RANGE)
PLL Sync Frequency Range
100
500
kHz
Differential Amplifier
ADA
Gain
1.5V ≤ VSOUT ≤ 15V, VIN = 20V
0.99
1
1.01
V/V
CMRRDA
Common Mode Rejection Ratio
VIN = 20V
75
dB
RINP
VS+ Input Resistance
VIN = 20V
120
kΩ
RINM
VS– Input Resistance
VIN = 20V
160
kΩ
IOH
Output Sourcing Current
VIN = 20V, VS+ = 5V, VSOUT = 2.5V
l
0.8
3.0
mA
VIN-VOHST
Output High Fault Threshold
VS+ Rising
1.2
1.5
V
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 LTC3766E is guaranteed to meet specifications from 0°C
to 85°C with specifications over the –40°C to 125°C operating junction
temperature range assured by design, characterization and correlation with
statistical process controls. The LTC3766I is guaranteed over the –40°C to
125°C operating junction temperature range, the LTC3766H is guaranteed
over the –40°C to 150°C operating junction temperature range, and the
LTC3766MP is tested and guaranteed over the –55°C to 150°C operating
junction temperature range. High junction temperatures degrade operating
lifetimes; operating lifetime is derated for junction temperatures greater
than 125°C. Note that the maximum ambient temperature consistent with
these specifications is determined by specific operating conditions in
conjunction with board layout, the rated package thermal impedance and
other environmental factors.
Note 3: TJ is calculated from the ambient temperature, TA, and power
dissipation, PD, according to the following formula:
TJ = TA + (PD θJA°C/W)
where
θJA is 95°C/W for the SSOP and 43°C/W for the QFN package.
Note 4: The LTC3766 is tested in a feedback loop that servos VFB to a
voltage near the internal 0.6V reference voltage to obtain the specified ITH
voltage (VITH = 1.2V).
Note 5: Operating supply current is measured in test mode. Dynamic
supply current is higher due to the internal gate charge being delivered at
the switching frequency. See Typical Performance Characteristics.
Note 6: The VIN Regulator employs an external pass device to produce the
regulated VCC output voltage. The LTC3766 is tested using a 2N3904 NPN
transistor as an external pass device.
Note 7: Guaranteed by design.
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相關(guān)代理商/技術(shù)參數(shù) |
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|---|---|
| LTC3770EG | 制造商:Linear Technology 功能描述:LDO Cntrlr SYNC BUCK REG 0.6V to 32V 28-Pin SSOP |
| LTC3770EG#PBF | 功能描述:IC REG CTRLR BUCK PWM CM 28-SSOP RoHS:是 類別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - DC DC 切換控制器 系列:- 標(biāo)準(zhǔn)包裝:2,500 系列:- PWM 型:電流模式 輸出數(shù):1 頻率 - 最大:500kHz 占空比:96% 電源電壓:4 V ~ 36 V 降壓:無 升壓:是 回掃:無 反相:無 倍增器:無 除法器:無 Cuk:無 隔離:無 工作溫度:-40°C ~ 125°C 封裝/外殼:24-WQFN 裸露焊盤 包裝:帶卷 (TR) |
| LTC3770EG#TRPBF | 功能描述:IC REG CTRLR BUCK PWM CM 28-SSOP RoHS:是 類別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - DC DC 切換控制器 系列:- 標(biāo)準(zhǔn)包裝:2,500 系列:- PWM 型:電流模式 輸出數(shù):1 頻率 - 最大:500kHz 占空比:96% 電源電壓:4 V ~ 36 V 降壓:無 升壓:是 回掃:無 反相:無 倍增器:無 除法器:無 Cuk:無 隔離:無 工作溫度:-40°C ~ 125°C 封裝/外殼:24-WQFN 裸露焊盤 包裝:帶卷 (TR) |
| LTC3770EUH#PBF | 功能描述:IC REG CTRLR BUCK PWM CM 32-QFN RoHS:是 類別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - DC DC 切換控制器 系列:- 標(biāo)準(zhǔn)包裝:2,500 系列:- PWM 型:電流模式 輸出數(shù):1 頻率 - 最大:500kHz 占空比:96% 電源電壓:4 V ~ 36 V 降壓:無 升壓:是 回掃:無 反相:無 倍增器:無 除法器:無 Cuk:無 隔離:無 工作溫度:-40°C ~ 125°C 封裝/外殼:24-WQFN 裸露焊盤 包裝:帶卷 (TR) |
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