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)： 23/60頁
文件大小： 607K
代理商： LTC3766MPUFD#PBF
LTC3766
3
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.
ORDER INFORMATION
LEAD FREE FINISH
TAPE AND REEL
PART MARKING*
PACKAGE DESCRIPTION
TEMPERATURE RANGE
LTC3766EGN#PBF
LTC3766EGN#TRPBF
LTC3766GN
28-Lead Narrow Plastic SSOP
–40°C to 125°C
LTC3766IGN#PBF
LTC3766IGN#TRPBF
LTC3766GN
28-Lead Narrow Plastic SSOP
–40°C to 125°C
LTC3766HGN#PBF
LTC3766HGN#TRPBF
LTC3766GN
28-Lead Narrow Plastic SSOP
–40°C to 150°C
LTC3766MPGN#PBF
LTC3766MPGN#TRPBF
LTC3766GN
28-Lead Narrow Plastic SSOP
–55°C to 150°C
LTC3766EUFD#PBF
LTC3766EUFD#TRPBF
3766
28-Lead (4mm
× 5mm) Plastic QFN
–40°C to 125°C
LTC3766IUFD#PBF
LTC3766IUFD#TRPBF
3766
28-Lead (4mm
× 5mm) Plastic QFN
–40°C to 125°C
LTC3766HUFD#PBF
LTC3766HUFD#TRPBF
3766
28-Lead (4mm
× 5mm) Plastic QFN
–40°C to 150°C
LTC3766MPUFD#PBF
LTC3766MPUFD#TRPBF
3766
28-Lead (4mm
× 5mm) Plastic QFN
–55°C to 150°C
Consult LTC Marketing for parts specified with wider operating temperature ranges. *The temperature grade is identified by a label on the shipping container.
Consult LTC Marketing for information on non-standard lead based finish parts.
For more information on lead free part marking, go to: http://www.linear.com/leadfree/
For more information on tape and reel specifications, go to: http://www.linear.com/tapeandreel/
SYMBOL
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
Main Control Loop
VFB
Regulated Feedback Voltage
(Note 4) ITH = 1.2V
l
0.592
0.600
0.608
V
IFB
Feedback Input Current
(Note 4)
2
50
nA
ΔVFB(LINREG)
Feedback Voltage Line Regulation
VIN = 5V to 32V, ITH = 1.2V
0.001
%/V
ΔVFB(LOADREG) Feedback Voltage Load Regulation
Measured in Servo Loop, ITH = 0.5V to 2V
l
–0.01
–0.1
%
VISAVG
Average Current Sense Threshold
Resistor Sense (RS) Mode
Current Transformer (CT) Mode
47
0.66
55
0.73
63
0.80
mV
V
VISADJ
Current Sense Ripple Compensation
RS Mode
CT Mode
VSW = 10V, VS+ = 5V, FS/SYNC = VCC,
RIPK = 23.7k
10
140
mV
VISOC
Overcurrent Shutdown Threshold
RS Mode: VIS–= 0V
CT Mode: VIS– = VCC
86
1.22
100
1.33
113
1.44
mV
V
ISIN
IS+ and IS– Input Current
280
500
nA
gm
Error Amplifier gm
2.2
2.7
3.2
mS
REA
Error Amplifier Output Resistance
(Note 7)
5
MΩ
ISOFT(C)
Soft-Start Charge Current
VSS = 2V
4
5
6
μA
ISOFT(D)
Soft-Start Discharge Current
VSS = 2V
3
μA
VRUNR
RUN Pin On Threshold
VRUN Rising
l
1.18
1.22
1.26
V
VRUNF
RUN Pin Off Threshold
VRUN Falling
l
1.13
1.17
1.21
V
IRUN
RUN Pin Hysteresis Current
VRUN = 0.5V
2.2
3.0
3.6
μA
tON(MIN)
Minimum Controllable On Time
200
ns
DMAX
Maximum Duty Cycle
FGD = SGD = GND
77
79
81
%
ΔVSEC(TH)
Volt-Second Limit Threshold Accuracy
2V ≤ VSW < 5V
5V ≤ VSW ≤ 40V
–6
–4
6
4
%
RVSDN
Volt-Second Discharge Resistance
75
Ω
VSWCL
SW Clamp Voltage
ISW = 1mA
43
51
60
V
ΔVFB(OV)
Output Overvoltage Threshold
VFB Rising
15
17
19
%
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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)
LTC3770EUH#TRPBF 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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