參數(shù)資料
型號(hào): LTC3829EUHF#PBF
廠商: LINEAR TECHNOLOGY CORP
元件分類(lèi): 穩(wěn)壓器
英文描述: SWITCHING REGULATOR, PQCC38
封裝: 5 X 7 MM, LEAD FREE, PLASTIC, M0-220WHKD, QFN-38
文件頁(yè)數(shù): 1/40頁(yè)
文件大?。?/td> 478K
代理商: LTC3829EUHF#PBF
LTC3829
3829f
3-Phase, Single Output
Synchronous Step-Down
DC/DC Controller with Diffamp
Typical applicaTion
DescripTion
TheLTC3829isahighperformance3-phasesingleoutput
synchronous step-down DC/DC switching controller that
drives all N-channel synchronous power MOSFET stages.
A constant frequency current mode architecture allows a
phase-lockablefrequencyofupto770kHz.Powerlossand
noise due to ESR of the input capacitors are minimized by
operating the three controller output stages out of phase.
The LTC3829 can be configured for 6-phase operation,
has DCR temperature compensation, and output foldback
current limiting. This device features a precision 0.6V
reference and a power good indicator.
Light load efficiency is optimized by using a choice of
output Stage Shedding or Burst Mode operation. A dif-
ferential amplifier provides true remote sensing of the
output voltage at the point of load.
The LTC3829 is available in both low profile 38-pin 5mm
× 7mm QFN and Exposed Pad FE packages.
FeaTures
applicaTions
n
Optional Nonlinear Control for Fast Response
n
±0.75%, 0.6V Reference Accuracy
n
PWM, Stage Shedding or Burst Mode Operation
n
High Efficiency: Up to 95%
n
RSENSE or DCR Current Sensing
n
Programmable DCR Temperature Compensation
n
Phase-Lockable Fixed Frequency: 250kHz to 770kHz
n
True Remote Sense Differential Amplifier
n
Programmable Active Voltage Positioning (AVP)
n
Triple N-Channel MOSFET Synchronous Drive
n
Wide VIN Range: 4.5V to 38V Operation
n
VOUT Range: 0.6V to 5V without Diffamp
n
VOUT Range: 0.6V to 3.3V with Diffamp
n
Clock Input and Output for 6-Phase Operation
n
Adjustable Soft-Start or VOUT Tracking
n
38-Pin (5mm
× 7mm) QFN and FE Packages
n
Notebook and Palmtop Computers
n
Telecom Systems
n
Portable Instruments
n
DC Power Distribution Systems
+
INTVCC
BOOST1
BOOST2
BOOST3
FREQ
ITH
TK/SS
SENSE1+
SENSE1
PGND
BG1
SW1
TG1
4.7F
SW3 SW2 SW1
0.1F
680pF
100k
5k
20k
22F
35V
3
VIN
6V TO 28V
COUT
470F
4V
4
VOUT
1.2V
50A
SENSE2+
SENSE2
BG2
SW2
TG2
SENSE3+
SENSE3
BG3
SW3
TG3
SGND
DIFFOUT
VFB
DIFFN
DIFFP
0.6H
VIN
0.002
0.6H 0.002
0.6H
3829 TA01
0.002
VIN
LTC3829
L
, LT, LTC, LTM, Burst Mode, OPTI-LOOP, PolyPhase, Linear Technology, the Linear logo are
registered trademarks and Stage Shedding, No RSENSE are trademarks of Linear Technology
Corporation. All other trademarks are the property of their respective owners. Protected by
U.S. Patents, including 5481178, 5705919, 5929620, 6144194, 6177787, 6580258, 6498466,
6674274, 6611136.
LOAD CURRENT (A)
0.1
70
EFFICIENCY
(%)
POWER
LOSS
(W)
75
80
85
90
1
10
100
3829 TA01b
65
60
55
50
95
100
4
6
8
10
12
2
0
14
16
VIN = 12V
VOUT = 1.5V
EFFICIENCY
POWER LOSS
Efficiency
相關(guān)PDF資料
PDF描述
LPD28SP 1-OUTPUT 75 W DC-DC REG PWR SUPPLY MODULE
LM4041CIM3-1.2T&R 1-OUTPUT TWO TERM VOLTAGE REFERENCE, 1.225 V, PDSO3
LM4040CIM3-2.5T&R 1-OUTPUT TWO TERM VOLTAGE REFERENCE, 2.5 V, PDSO3
LK2540-7EPD3TB1 2-OUTPUT 150 W AC-DC REG PWR SUPPLY MODULE
LS1001-7EPD7TB1 1-OUTPUT 100 W AC-DC REG PWR SUPPLY MODULE
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
LTC3829IFE#PBF 功能描述:IC REG CTRLR BUCK PWM CM 38TSSOP RoHS:是 類(lèi)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(wú) 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:6-WDFN 裸露焊盤(pán) 包裝:帶卷 (TR) 配用:LM1771EVAL-ND - BOARD EVALUATION LM1771 其它名稱(chēng):LM1771SSDX
LTC3829IFE#TRPBF 功能描述:IC REG CTRLR BUCK PWM CM 38TSSOP RoHS:是 類(lèi)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(wú) 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:6-WDFN 裸露焊盤(pán) 包裝:帶卷 (TR) 配用:LM1771EVAL-ND - BOARD EVALUATION LM1771 其它名稱(chēng):LM1771SSDX
LTC3829IUHF#PBF 功能描述:IC REG CTRLR BUCK PWM CM 38-QFN RoHS:是 類(lèi)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(wú) 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:6-WDFN 裸露焊盤(pán) 包裝:帶卷 (TR) 配用:LM1771EVAL-ND - BOARD EVALUATION LM1771 其它名稱(chēng):LM1771SSDX
LTC3829IUHF#TRPBF 功能描述:IC REG CTRLR BUCK PWM CM 38-QFN RoHS:是 類(lèi)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(wú) 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:6-WDFN 裸露焊盤(pán) 包裝:帶卷 (TR) 配用:LM1771EVAL-ND - BOARD EVALUATION LM1771 其它名稱(chēng):LM1771SSDX
LTC3830-1ES8 功能描述:IC REG CTRLR BUCK PWM VM 8-SOIC 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:2,000 系列:- PWM 型:電流模式 輸出數(shù):1 頻率 - 最大:1MHz 占空比:50% 電源電壓:9 V ~ 10 V 降壓:無(wú) 升壓:是 回掃:是 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 ~ 85°C 封裝/外殼:8-TSSOP(0.173",4.40mm 寬) 包裝:帶卷 (TR)