- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄30770 > LTC3546EFE#PBF (LINEAR TECHNOLOGY CORP) DUAL SWITCHING CONTROLLER, 4000 kHz SWITCHING FREQ-MAX, PDSO28 PDF資料下載
參數(shù)資料
| 型號： | LTC3546EFE#PBF |
| 廠商： | LINEAR TECHNOLOGY CORP |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | DUAL SWITCHING CONTROLLER, 4000 kHz SWITCHING FREQ-MAX, PDSO28 |
| 封裝： | 4.40 MM, LEAD FREE, PLASTIC, TSSOP-28 |
| 文件頁數(shù)： | 23/28頁 |
| 文件大?。?/td> | 356K |
| 代理商： | LTC3546EFE#PBF |
第1頁第2頁第3頁第4頁第5頁第6頁第7頁第8頁第9頁第10頁第11頁第12頁第13頁第14頁第15頁第16頁第17頁第18頁第19頁第20頁第21頁第22頁當前第23頁第24頁第25頁第26頁第27頁第28頁
LTC3546
4
3546fb
ELECTRICAL CHARACTERISTICS The l denotes the specications which apply over the full operating
junction temperature range, otherwise specications are at TA = 25°C. VIN = VCCA = 3.6V, unless otherwise specied. (Note 2)
SYMBOL
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
ISW1D(LKG)
Switch Leakage Current SW1D
VIN = 6V
VITH1 = VITH2 = 0V
VRUN1 = VRUN2 = 0V
0.01
1
μA
ISW2A/B(LKG)
Switch Leakage Current SW2A/B
VIN = 6V
VITH2 = 0V
VRUN2 = 0V
0.01
1
μA
VUVLO
Undervoltage Lockout Threshold
VIN1, VIN2, VCCA, VCCD Rising
VIN1, VIN2, VCCA, VCCD Falling
2.03
1.86
2.14
1.97
2.2
2.03
V
TPGOOD1
Threshold for Power Good
Percentage Deviation from Regulated VFB1
(Typically 0.6V).
VFB1 Ramping Up, VSYNC/MODE = 0V
–8
%
TPGOOD2
Threshold for Power Good
Percentage Deviation from Regulated VFB2
(Typically 0.6V).
VFB2 Ramping Up, VSYNC/MODE = 0V
–8
%
RPGOOD1
Power Good Pull-Down On-Resistance
132
300
Ω
RPGOOD2
Power Good Pull-Down On-Resistance
132
300
Ω
tSS
Soft-Start Internal Time.
VFB from 0% to 95%, VTRACK/SS Is Floating
0.8
1.2
1.9
ms
VRUN1, VRUN2,
VPHASE
RUN1, RUN2, and PHASE Threshold
0.3
0.8
1.2
V
IRUN1, IRUN2,
IPHASE
RUN1, RUN2, and PHASE Leakage Current VIN = 6V, VPHASE = 3V, VRUN1 = VRUN2 = 3V
±0.01
±1
μA
VTLSYNC/MODE SYNC/MODE Threshold Voltage Low to Put
the Part into Pulse-Skipping Mode
0.5
V
VTHSYNC/MODE SYNC/MODE Threshold Voltage High to
Put the Part into Burst Mode Operation
VIN – 0.5
V
VSYNC/MODE
SYNC/MODE Threshold for Clock
Synchronization
0.3
0.8
1.2
V
ISYNC/MODE
SYNC/MODE Leakage Current
VIN = 6V, VSYNC/MODE = 3V
±0.01
±1
μA
VTHFREQ
FREQ Threshold Voltage High
VIN – 0.85
V
IBMC1, IBMC2
BMC1, BMC2 Leakage Current
VIN = 6V, VBMC = 3V
±0.4
μA
Note 1: Stresses beyond those listed under Absolute Maximum Ratings
may cause permanent damage to the device. Exposure to any Absolute
Maximum Rating condition for extended periods may affect device
reliability and lifetime.
Note 2: The LTC3546E is guaranteed to meet performance specications
from 0°C to 85°C. Specications over the –40°C to 125°C operating
junction temperature range are assured by design, characterization and
correlation with statistical process controls. The LTC3546I is guaranteed
to meet performance specications over the full –40°C to 125°C operating
junction temperature range
Note 3: The LTC3546 is tested in feedback loop which servos VFB1 to the
midpoint for the error amplier (VITH1 = 0.6V) and VFB2 to the midpoint for
the error amplier (VITH2 = 0.6V).
Note 4: Total supply current is higher due to the internal gate charge being
delivered at the switching frequency.
Note 5: Variable frequency operation with resistor is guaranteed by design
and is subject to duty cycle limitations.
Note 6: This IC includes overtemperature protection that is intended
to protect the device during momentary overload conditions. Junction
temperature will exceed 125°C when overtemperature protection is active.
Continuous operation above the specied maximum operating junction
temperature may impair device reliability.
Note 7: TJ is calculated from the ambient temperature, TA, and power
dissipation, PD, according to the following formula:
TJ = TA + (PD 34°C/W)
Note 8: Minimum current limit is guaranteed by design and correlation to
the RDS(ON)1D, ILIM1 and ILIM2 measurements.
相關PDF資料 |
PDF描述 |
|---|---|
| LTC3546EUFD#PBF | DUAL SWITCHING CONTROLLER, 4000 kHz SWITCHING FREQ-MAX, PQCC28 |
| LTC3546IUFD | DUAL SWITCHING CONTROLLER, 4000 kHz SWITCHING FREQ-MAX, PQCC28 |
| LTC3546EUFD | DUAL SWITCHING CONTROLLER, 4000 kHz SWITCHING FREQ-MAX, PQCC28 |
| LTC3546IUFD#TR | DUAL SWITCHING CONTROLLER, 4000 kHz SWITCHING FREQ-MAX, PQCC28 |
| LTC3546EFE | DUAL SWITCHING CONTROLLER, 4000 kHz SWITCHING FREQ-MAX, PDSO28 |
相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| LTC3546EFETRPBF | 制造商:LINER 制造商全稱:Linear Technology 功能描述:Dual Synchronous, 3A/1A or 2A/2A Confi gurable Step-Down DC/DC Regulator |
| LTC3546EUFD#PBF | 功能描述:IC REG BUCK SYNC ADJ 1A/2A 28QFN RoHS:是 類別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - DC DC 開關穩(wěn)壓器 系列:- 產品培訓模塊:MIC23xxx HyperLight Load™ Regulators 標準包裝:5,000 系列:HyperLight Load® 類型:降壓（降壓） 輸出類型:固定 輸出數(shù):1 輸出電壓:1.8V 輸入電壓:2.7 V ~ 5.5 V PWM 型:混合物 頻率 - 開關:4MHz 電流 - 輸出:2A 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:8-VFDFN 裸露焊盤，8-MLF? 包裝:帶卷 (TR) 供應商設備封裝:8-MLF?（2x2） 產品目錄頁面:1094 (CN2011-ZH PDF) 其它名稱:576-3303-2 |
| LTC3546EUFD#TRPBF | 功能描述:IC REG BUCK SYNC ADJ 1A/2A 28QFN RoHS:是 類別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - DC DC 開關穩(wěn)壓器 系列:- 設計資源:Design Support Tool 標準包裝:1 系列:- 類型:升壓（升壓） 輸出類型:固定 輸出數(shù):1 輸出電壓:3V 輸入電壓:0.75 V ~ 2 V PWM 型:- 頻率 - 開關:- 電流 - 輸出:100mA 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:SOT-23-5 細型，TSOT-23-5 包裝:剪切帶 (CT) 供應商設備封裝:TSOT-23-5 其它名稱:AS1323-BTTT-30CT |
| LTC3546EUFDPBF | 制造商:LINER 制造商全稱:Linear Technology 功能描述:Dual Synchronous, 3A/1A or 2A/2A Confi gurable Step-Down DC/DC Regulator |
| LTC3546EUFDTRPBF | 制造商:LINER 制造商全稱:Linear Technology 功能描述:Dual Synchronous, 3A/1A or 2A/2A Confi gurable Step-Down DC/DC Regulator |
發(fā)布緊急采購，3分鐘左右您將得到回復。