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參數(shù)資料
| 型號(hào)： | LTC1874EGN |
| 廠商： | LINEAR TECHNOLOGY CORP |
| 元件分類(lèi)： | 穩(wěn)壓器 |
| 英文描述： | Quadruple 2-Input Positive-AND Gate 14-VQFN -40 to 85 |
| 中文描述： | 1 A SWITCHING CONTROLLER, 650 kHz SWITCHING FREQ-MAX, PDSO16 |
| 封裝： | 0.150 INCH, PLASTIC, SSOP-16 |
| 文件頁(yè)數(shù)： | 4/12頁(yè) |
| 文件大?。?/td> | 180K |
| 代理商： | LTC1874EGN |
4
LTC1874
PI
FU
CTIO
N
S
U
U
V
IN1
(Pin 1):
Main Supply Pin for Controller #1. This pin
delivers the Input DC Supply Current (listed in the Electri-
cal Characteristics table) plus a small amount of logic
switching current. Must be connected to PV
IN1
(Pin 16)
and closely decoupled to GND1 (Pin 3).
SENSE1
–
(Pin 2):
The Negative Input to the Current
Comparator of Controller #1.
GND1 (Pin 3):
Signal Ground for Controller #1. Must be
connected to PGND1 (Pin 14).
V
FB1
(Pin 4):
Receives the feedback voltage from an
external resistive divider across the output of Controller
#1.
I
TH
/RUN2 (Pin 5):
This pin performs two functions. It
serves as the error amplifier compensation point as well as
the run control input of Controller #2. The current com-
parator threshold increases with this control voltage.
Nominal voltage range for this pin is 0.7V to 1.9V. Forcing
this pin below 0.35V causes Controller #2 to be shut down.
In shutdown, all functions of Controller #2 are disabled
and PGATE2 (Pin 7) is held high.
PGND2 (Pin 6):
Power Ground for Controller #2. Must be
connected to GND2 (Pin 11).
PGATE2 (Pin 7):
Gate Drive for the External P-Channel
MOSFET of Controller #2. This pin swings from 0V to the
voltage of PV
IN2
.
PV
IN2
(Pin 8):
Power Supply Pin for Controller #2. This pin
delivers the dynamic switching current that drives the gate
of the external P-channel MOSFET of Controller #2. Must
be connected to V
IN2
(Pin 9) and closely decoupled to
PGND2 (Pin 6).
V
IN2
(Pin 9):
Main Supply Pin for Controller #2. This pin
delivers the Input DC Supply Current (listed in the Electri-
cal Characteristics table) plus a small amount of logic
switching current. Must be connected to PV
IN2
(Pin 8) and
closely decoupled to GND2 (Pin 11).
SENSE2
–
(Pin 10):
The Negative Input to the Current
Comparator of Controller #2.
GND2 (Pin 11):
Signal Ground for Controller #2. Must be
connected to PGND2 (Pin 6).
V
FB2
(Pin 12):
Receives the feedback voltage from an
external resistive divider across the output of Controller
#2.
I
TH
/RUN1 (Pin 13):
This pin performs two functions. It
serves as the error amplifier compensation point as well as
the run control input of Controller #1. The current com-
parator threshold increases with this control voltage.
Nominal voltage range for this pin is 0.7V to 1.9V. Forcing
this pin below 0.35V causes Controller #1 to be shut down.
In shutdown, all functions of Controller #1 are disabled
and PGATE1 (Pin 15) is held high.
PGND1 (Pin 14):
Power Ground for Controller #1. Must be
connected to GND1 (Pin 3).
PGATE1 (Pin 15):
Gate Drive for the External P-Channel
MOSFET of Controller #1. This pin swings from 0V to the
voltage of PV
IN1
.
PV
IN1
(Pin 16):
Power Supply Pin for Controller #1. This
pin delivers the dynamic switching current that drives the
gate of the external P-channel MOSFET of Controller #1.
Must be connected to V
IN1
(Pin 1) and closely decoupled
to PGND1 (Pin 14).
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| LTC1874EGN#PBF | 功能描述:IC REG CTRLR BUCK PWM CM 16-SSOP RoHS:是 類(lèi)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(wú) 升壓:是 回掃:無(wú) 反相:無(wú) 倍增器:無(wú) 除法器:無(wú) Cuk:無(wú) 隔離:無(wú) 工作溫度:-40°C ~ 125°C 封裝/外殼:24-WQFN 裸露焊盤(pán) 包裝:帶卷 (TR) |
| LTC1874EGN#TR | 功能描述:IC REG CTRLR BUCK PWM CM 16-SSOP RoHS:否 類(lèi)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(wú) 升壓:是 回掃:無(wú) 反相:無(wú) 倍增器:無(wú) 除法器:無(wú) Cuk:無(wú) 隔離:無(wú) 工作溫度:-40°C ~ 125°C 封裝/外殼:24-WQFN 裸露焊盤(pán) 包裝:帶卷 (TR) |
| LTC1874EGN#TRPBF | 功能描述:IC REG CTRLR BUCK PWM CM 16-SSOP RoHS:是 類(lèi)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(wú) 升壓:是 回掃:無(wú) 反相:無(wú) 倍增器:無(wú) 除法器:無(wú) Cuk:無(wú) 隔離:無(wú) 工作溫度:-40°C ~ 125°C 封裝/外殼:24-WQFN 裸露焊盤(pán) 包裝:帶卷 (TR) |
| LTC1875EGN | 功能描述:IC REG BUCK SYNC ADJ 1.5A 16SSOP RoHS:否 類(lèi)別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - DC DC 開(kāi)關(guān)穩(wěn)壓器 系列:- 標(biāo)準(zhǔn)包裝:2,500 系列:- 類(lèi)型:降壓（降壓） 輸出類(lèi)型:固定 輸出數(shù):1 輸出電壓:1.2V，1.5V，1.8V，2.5V 輸入電壓:2.7 V ~ 20 V PWM 型:- 頻率 - 開(kāi)關(guān):- 電流 - 輸出:50mA 同步整流器:是 工作溫度:-40°C ~ 125°C 安裝類(lèi)型:表面貼裝 封裝/外殼:10-TFSOP，10-MSOP（0.118"，3.00mm 寬）裸露焊盤(pán) 包裝:帶卷 (TR) 供應(yīng)商設(shè)備封裝:10-MSOP 裸露焊盤(pán) |
| LTC1875EGN#PBF | 功能描述:IC REG BUCK SYNC ADJ 1.5A 16SSOP RoHS:是 類(lèi)別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - DC DC 開(kāi)關(guān)穩(wěn)壓器 系列:- 標(biāo)準(zhǔn)包裝:250 系列:- 類(lèi)型:降壓（降壓） 輸出類(lèi)型:固定 輸出數(shù):1 輸出電壓:1.2V 輸入電壓:2.05 V ~ 6 V PWM 型:電壓模式 頻率 - 開(kāi)關(guān):2MHz 電流 - 輸出:500mA 同步整流器:是 工作溫度:-40°C ~ 85°C 安裝類(lèi)型:表面貼裝 封裝/外殼:6-UFDFN 包裝:帶卷 (TR) 供應(yīng)商設(shè)備封裝:6-SON（1.45x1） 產(chǎn)品目錄頁(yè)面:1032 (CN2011-ZH PDF) 其它名稱(chēng):296-25628-2 |
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