參數(shù)資料
型號: LTC3789EUFD#TRPBF
廠商: LINEAR TECHNOLOGY CORP
元件分類: 穩(wěn)壓器
英文描述: 0.1 A SWITCHING CONTROLLER, 710 kHz SWITCHING FREQ-MAX, PQCC28
封裝: 4 X 5 MM, LEAD FREE, PLASTIC, MO-220, QFN-28
文件頁數(shù): 22/28頁
文件大?。?/td> 486K
代理商: LTC3789EUFD#TRPBF
LTC3789
3
3789f
elecTrical characTerisTics
SYMBOL
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
VIN
Input Supply Voltage
4
38
V
VOUT
Output Voltage
0.8
38
V
VFB
Regulated Feedback Voltage
ITH Voltage = 1.2V (Note 4), TA = –40°C to 85°C
ITH = 1.2V, TA = 125°C, TA = –40°C to 125°C
l
0.792
0.788
0.800
0.808
0.812
V
IFB
Feedback Current
(Note 4)
–15
–50
nA
VREFLNREG
Reference Voltage Line Regulation
VIN = 4V to 38V (Note 4)
0.002
0.02
%/V
VLOADREG
Output Voltage Load Regulation
(Note 4)
Measured in Servo Loop, ITH Voltage = 1.4V to 2V
Measured in Servo Loop, ITH Voltage = 2V to 2.6V
l
0.01
–0.01
0.1
–0.1
%
gm
Transconductance Amplifier gm
ITH = 1.2V, Sink/Source 5A (Note 4)
1.5
mmho
IQ
Input DC Supply Current
Normal Mode
Shutdown
(Note 5)
VRUN = 0V
3
40
60
mA
A
UVLO
Undervoltage Lockout
INTVCC Ramping Down
3.4
3.6
V
UVLO Hyst
Undervoltage Hysteresis
0.4
V
ISENSE+
ISENSE–
SENSE Pins Current
VSENSE– = VSENSE+ = 0V
0.2
±1
A
IIOSENSE+
IIOSENSE–
IOSENSE Pins Current
VIOSENSE– = VIOSENSE+ = 10V
10
14
A
ISS
Soft-Start Charge Current
VSS = 0V
2
3
4
A
VRUN(ON)
RUN Pin On-Threshold
VRUN Rising
1.22
V
VRUN(HYS)
RUN Pin On-Hysteresis
150
mV
IRUN
RUN Pin Source Current
1.2
A
IRUN(HYS)
RUN Pin Hysteresis Current
5
A
VSENSE(MAX)
Maximum Current Sense Threshold
Buck Region
Boost Region
VFB = 0.7V
l
60
110
90
140
110
165
mV
VSENSE(IAVG)
Maximum Input/Output Average
Current Sense Threshold
ILIM = 0V
ILIM Floating
ILIM = INTVCC
47
90
130
50
100
145
53
106
160
mV
RDSPFET(ON)
Driver Pull-Up On-Resistance
2.6
Ω
RDSNFET(ON)
Driver Pull-Down On-Resistance
1.5
Ω
TG tr
TG tf
Top Gate Rise Time
Top Gate Fall Time
25
ns
BG tr
BG tf
Bottom Gate Rise Time
Bottom Gate Fall Time
25
ns
TG/BG t1D
Top Gate Off to Bottom Gate On
Delay Synchronous Switch-On
Delay Time
CLOAD = 3300pF Each Driver (Note 6)
60
ns
BG/TG t1D
Bottom Gate Off to Top Gate On
Delay Top Switch-On Delay Time
CLOAD = 3300pF Each Driver (Note 6)
60
ns
DFMAX,BOOST
Maximum Duty Factor
% Switch C On
90
%
DON(MIN,BOOST)
Minimum Duty Factor for Main
Switch in Boost Operation
% Switch C On
9
%
DON(MIN,BUCK)
Minimum Duty Factor for Main
Switch in Buck Operation
% Switch B On
9
%
The l denotes the specifications which apply over the full operating
junction temperature range, otherwise specifications are at TA = 25°C (Note 2). VIN = 15V, VRUN = 5V, unless otherwise noted.
相關(guān)PDF資料
PDF描述
LTC3789EGN#PBF 0.1 A SWITCHING CONTROLLER, 710 kHz SWITCHING FREQ-MAX, PDSO28
LTC3789IUFD#PBF 0.1 A SWITCHING CONTROLLER, 710 kHz SWITCHING FREQ-MAX, PQCC28
LTC3789IGN#TRPBF 0.1 A SWITCHING CONTROLLER, 710 kHz SWITCHING FREQ-MAX, PDSO28
LTC3803HS6-3#TRPBF 1 A SWITCHING CONTROLLER, 330 kHz SWITCHING FREQ-MAX, PDSO6
LTC3803MPS6-3#TR 1 A SWITCHING CONTROLLER, 330 kHz SWITCHING FREQ-MAX, PDSO6
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
LTC3789IGN#PBF 功能描述:IC REG CTRLR BST 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:- 標準包裝:4,500 系列:PowerWise® PWM 型:控制器 輸出數(shù):1 頻率 - 最大:1MHz 占空比:95% 電源電壓:2.8 V ~ 5.5 V 降壓:是 升壓:無 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:6-WDFN 裸露焊盤 包裝:帶卷 (TR) 配用:LM1771EVAL-ND - BOARD EVALUATION LM1771 其它名稱:LM1771SSDX
LTC3789IGN#TRPBF 功能描述:IC REG CTRLR BST 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:- 標準包裝:4,500 系列:PowerWise® PWM 型:控制器 輸出數(shù):1 頻率 - 最大:1MHz 占空比:95% 電源電壓:2.8 V ~ 5.5 V 降壓:是 升壓:無 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:6-WDFN 裸露焊盤 包裝:帶卷 (TR) 配用:LM1771EVAL-ND - BOARD EVALUATION LM1771 其它名稱:LM1771SSDX
LTC3789IUFD#PBF 功能描述:IC REG CTRLR BST PWM CM 28-QFN RoHS:是 類別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - DC DC 切換控制器 系列:- 標準包裝:4,500 系列:PowerWise® PWM 型:控制器 輸出數(shù):1 頻率 - 最大:1MHz 占空比:95% 電源電壓:2.8 V ~ 5.5 V 降壓:是 升壓:無 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:6-WDFN 裸露焊盤 包裝:帶卷 (TR) 配用:LM1771EVAL-ND - BOARD EVALUATION LM1771 其它名稱:LM1771SSDX
LTC3789IUFD#TRPBF 功能描述:IC REG CTRLR BST PWM CM 28-QFN RoHS:是 類別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - DC DC 切換控制器 系列:- 標準包裝:4,500 系列:PowerWise® PWM 型:控制器 輸出數(shù):1 頻率 - 最大:1MHz 占空比:95% 電源電壓:2.8 V ~ 5.5 V 降壓:是 升壓:無 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:6-WDFN 裸露焊盤 包裝:帶卷 (TR) 配用:LM1771EVAL-ND - BOARD EVALUATION LM1771 其它名稱:LM1771SSDX
LTC3789IUFDPBF 制造商:Linear Technology 功能描述:4-Switch Buck-Boost Controller QFN28EP