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參數(shù)資料
| 型號(hào)： | LTC3803IS6-5 |
| 廠商： | LINEAR TECHNOLOGY CORP |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | 1 A SWITCHING CONTROLLER, 230 kHz SWITCHING FREQ-MAX, PDSO6 |
| 封裝： | 1 MM HEIGHT, PLASTIC, MO-193, TSOT-23, 6 PIN |
| 文件頁數(shù)： | 13/16頁 |
| 文件大小： | 162K |
| 代理商： | LTC3803IS6-5 |
LTC3803-5
6
38035fd
BLOCK DIAGRAM
PIN FUNCTIONS
ITH/RUN (Pin 1): This pin performs two functions. It
serves as the error amplier compensation point as well
as the run/shutdown control input. Nominal voltage range
is 0.7V to 1.9V. Forcing this pin below the shutdown
threshold (VITHSHDN) causes the LTC3803-5 to shut down.
In shutdown mode, the NGATE pin is held low.
GND (Pin 2): Ground Pin.
VFB (Pin 3): Receives the feedback voltage from an external
resistive divider across the output.
SENSE (Pin 4): This pin performs two functions. It monitors
switch current by reading the voltage across an external
current sense resistor to ground. It also injects a current
ramp that develops slope compensation voltage across
an optional external programming resistor.
VCC (Pin 5): Supply Pin. Must be closely decoupled to
GND (Pin 2).
NGATE (Pin 6): Gate Drive for the External N-channel
MOSFET. This pin swings from 0V to VCC.
–
+
–
+
SLOPE
COMP
CURRENT
RAMP
VCC
GATE
DRIVER NGATE
4
SENSE
38035 BD
200kHz
OSCILLATOR
UNDERVOLTAGE
LOCKOUT
Q
R
CURRENT
COMPARATOR
SHUTDOWN
COMPARATOR
SHUTDOWN
S
20mV
ITH/RUN
ERROR
AMPLIFIER
VFB
SOFT-
START
CLAMP
VCC
SHUNT
REGULATOR
SWITCHING
LOGIC AND
BLANKING
CIRCUIT
6
0.28V
VCC < VTURNON
0.3μA
VCC
–
+
5
3
GND
1.2V
2
1
800mV
REFERENCE
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LTC3803IS6-5#PBF | 制造商:Linear Technology 功能描述:DC DC Cntrlr Single-OUT Sync Flyback 5V Input 6-Pin TSOT-23 制造商:Linear Technology 功能描述:DC DC Cntrlr Single-OUT Sync Flyback 5V Input 6-Pin TSOT-23 Bulk |
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| LTC3803IS6-5#TRPBF | 功能描述:IC REG CTRLR FLYBK PWM TSOT23-6 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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| LTC3803MPS6#TRMPBF | 功能描述:IC REG CTRLR FLYBK PWM TSOT23-6 RoHS:是 類別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - DC DC 切換控制器 系列:- 特色產(chǎn)品:LM3753/54 Scalable 2-Phase Synchronous Buck Controllers 標(biāo)準(zhǔn)包裝:1 系列:PowerWise® PWM 型:電壓模式 輸出數(shù):1 頻率 - 最大:1MHz 占空比:81% 電源電壓:4.5 V ~ 18 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:-5°C ~ 125°C 封裝/外殼:32-WFQFN 裸露焊盤 包裝:Digi-Reel® 產(chǎn)品目錄頁面:1303 (CN2011-ZH PDF) 其它名稱:LM3754SQDKR |
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