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參數(shù)資料
| 型號(hào)： | LTC1875EGN |
| 廠商： | LINEAR TECHNOLOGY CORP |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | 15mA Quiescent Current 1.5A Monolithic Synchronous Step-Down Regulator |
| 中文描述： | 3 A SWITCHING REGULATOR, 605 kHz SWITCHING FREQ-MAX, PDSO16 |
| 封裝： | 0.150 INCH, PLASTIC, SSOP-16 |
| 文件頁數(shù)： | 6/20頁 |
| 文件大?。?/td> | 257K |
| 代理商： | LTC1875EGN |
6
LTC1875
1875f
PIU
SGND (Pin 1):
Signal Ground Pin.
RUN/SS (Pin 2):
Combination of Soft-Start and Run
Control Inputs. Forcing this pin below 0.7V shuts down the
device. In shutdown all functions are disabled and device
draws zero supply current. For the proper operation of the
part, force this pin above 2.5V. Do not leave this pin
floating. Soft-start can be accomplished by raising the
voltage on this pin gradually with an RC circuit.
V
FB
(Pin 3):
Feedback Pin. Receives the feedback voltage
from an external resistor divider across the output.
I
TH
(Pin 4):
Error Amplifier Compensation Point. The
current output increases with this control voltage. Nomi-
nal voltage range for this pin is 0.5V to 1.8V.
SWP1, SWP2 (Pins 5, 12):
Upper Switch Nodes. These
pins connect to the drains of the internal main PMOS
switches and should always be connected together
externally.
SWN1, SWN2 (Pins 6, 11):
Lower Switch Nodes. These
pins connect to the drains of the internal synchronous
NMOS switches and should always be connected together
externally.
PGND1, PGND2 (Pins 7, 10):
Power Ground Pins. Ground
pins for the internal drivers and switches. These pins
should always be tied together.
PV
IN1
, PV
IN2
(Pins 8, 9):
Power Supply Pins for the
Internal Drivers and Switches. These pins should always
be tied together.
SV
IN
(Pin 13):
Signal Power Supply Pin.
PGOOD (Pin 14):
Power Good Indicator Pin. Power good
is an open-drain logic output. The PGOOD pin is pulled to
ground when the voltage on the V
FB
pin is not within
±
7.5% of its nominally regulated potential. This pin re-
quires a pull-up resistor for power good indication. Power
good indication works in all modes of operation.
SYNC/MODE (Pin 15):
External Clock Synchronization
and Mode Select Input. To synchronize, apply an external
clock with a frequency between 350kHz and 750kHz. To
select Burst Mode operation, tie pin to SV
IN
. Grounding
this pin selects pulse skipping mode. Do not leave this pin
floating.
PLL_LPF (Pin 16):
Output of the Phase Detector and
Control Input of Oscillator. Connect a series RC lowpass
network from this pin to ground if externally synchronized.
If unused, this pin may be left open.
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| LTC1875EGN#PBF | 功能描述:IC REG BUCK SYNC ADJ 1.5A 16SSOP RoHS:是 類別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - DC DC 開關(guān)穩(wěn)壓器 系列:- 標(biāo)準(zhǔn)包裝:250 系列:- 類型:降壓（降壓） 輸出類型: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)品目錄頁面:1032 (CN2011-ZH PDF) 其它名稱:296-25628-2 |
| LTC1875EGN#TR | 功能描述:IC REG BUCK SYNC ADJ 1.5A 16SSOP RoHS:否 類別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - DC DC 開關(guān)穩(wěn)壓器 系列:- 標(biāo)準(zhǔn)包裝:2,500 系列:- 類型:降壓（降壓） 輸出類型: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 - 開關(guān):- 電流 - 輸出:50mA 同步整流器:是 工作溫度:-40°C ~ 125°C 安裝類型:表面貼裝 封裝/外殼:10-TFSOP，10-MSOP（0.118"，3.00mm 寬）裸露焊盤 包裝:帶卷 (TR) 供應(yīng)商設(shè)備封裝:10-MSOP 裸露焊盤 |
| LTC1875EGN#TRPBF | 功能描述:IC REG BUCK SYNC ADJ 1.5A 16SSOP RoHS:是 類別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - DC DC 開關(guān)穩(wěn)壓器 系列:- 標(biāo)準(zhǔn)包裝:2,500 系列:- 類型:降壓（降壓） 輸出類型: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 - 開關(guān):- 電流 - 輸出:50mA 同步整流器:是 工作溫度:-40°C ~ 125°C 安裝類型:表面貼裝 封裝/外殼:10-TFSOP，10-MSOP（0.118"，3.00mm 寬）裸露焊盤 包裝:帶卷 (TR) 供應(yīng)商設(shè)備封裝:10-MSOP 裸露焊盤 |
| LTC1876EG | 功能描述:IC REG CTRLR BST PWM CM 36-SSOP RoHS:否 類別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - DC DC 切換控制器 系列:PolyPhase® 標(biāo)準(zhǔn)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 |
| LTC1876EG#PBF | 功能描述:IC REG CTRLR BST PWM CM 36-SSOP RoHS:是 類別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - DC DC 切換控制器 系列:PolyPhase® 標(biāo)準(zhǔn)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 |
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