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參數(shù)資料
| 型號： | LTC3873EDDB |
| 廠商： | LINEAR TECHNOLOGY CORP |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | SWITCHING CONTROLLER, 240 kHz SWITCHING FREQ-MAX, PDSO8 |
| 封裝： | 3 X 2 MM, 0.75 MM HEIGHT, PLASTIC, MO-229WECD-1, DFN-8 |
| 文件頁數(shù)： | 12/16頁 |
| 文件大小： | 185K |
| 代理商： | LTC3873EDDB |
LTC3873
5
3873fa
Frequency vs Temperature
Maximum Sense Threshold
vs Temperature
TYPICAL PERFORMANCE CHARACTERISTICS
IPRG (Pin 1/Pin 4): Current Sense Limit Select Pin.
ITH (Pin 2/Pin 3): This pin serves as the error amplier
compensation point. Nominal voltage range for this pin
is 0.7V to 1.9V.
VFB (Pin 3/Pin 2): This pin receives the feedback voltage
from an external resistor divider across the output.
GND (Pin 4/Pin 1): Ground Pin.
NGATE (Pin 5/Pin 8): Gate Drive for the External N-Channel
MOSFET. This pin swings from 0V to VIN.
VCC (Pin 6/Pin 7): Supply Pin. This pin must be closely
decoupled to GND (Pin 4).
PIN FUNCTIONS (TS8/DDB)
RUN/SS (Pin 7/Pin 6): Shutdown and External Soft-Start
Pin. In shutdown, all functions are disabled and the NGATE
pin is held low.
SW (Pin 8/Pin 5): Switch node connection to inductor and
current sense input pin through external slope compensa-
tion resistor. Normally, the external N-channel MOSFET’s
drain is connected to this pin.
Exposed Pad (NA/Pin 9): Ground. Must be soldered to PCB
for electrical contact and rated thermal performance.
TEMPERATURE (°C)
–60
FREQUECY
(kHz)
210
230
250
100
3873 G09
190
170
150
–40 –20
0
20
40
60
80
120
TEMPERATURE (°C)
0
MAXIMUM
SENSE
THRESHOLD
(mV)
100
200
300
50
150
250
–20
20
60
100
3873 G10
120
–40
–60
0
40
80
IPRG = VIN
IPRG = FLOAT
IPRG = GND
相關(guān)PDF資料 |
PDF描述 |
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| LTC3873EDDB#TRM | SWITCHING CONTROLLER, 240 kHz SWITCHING FREQ-MAX, PDSO8 |
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| LTC3878IGN#PBF | SWITCHING CONTROLLER, PDSO16 |
| LTC3878IGN#TRPBF | SWITCHING CONTROLLER, PDSO16 |
| LTC3879EUD#TRPBF | SWITCHING CONTROLLER, PQCC16 |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LTC3873EDDB#PBF | 制造商:Linear Technology 功能描述:DC DC Cntrlr Single-OUT Step Up 8.8V to 75V Input 8-Pin DFN EP |
| LTC3873EDDB#TRM | 制造商:Linear Technology 功能描述:DC DC Cntrlr Single-OUT Step Up 8.8V to 75V Input T/R |
| LTC3873EDDB#TRMPBF | 功能描述:IC REG CTRLR BST FLYBK PWM 8-DFN 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) |
| LTC3873EDDB#TRPBF | 功能描述:IC REG CTRLR BST FLYBK PWM 8-DFN 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) |
| LTC3873EDDB-5#PBF | 制造商:Linear Technology 功能描述:DP-SWREG/Isolated, CUT TAPE No Rsense Constant Frequency Current Mode Boost/Flyb |
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