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參數(shù)資料
| 型號： | LTC3716 |
| 廠商： | Linear Technology Corporation |
| 元件分類： | 基準電壓源/電流源 |
| 英文描述： | RADIATION HARDENED HIGH EFFICIENCY, 5 AMP SWITCHING REGULATORS |
| 中文描述： | 抗輻射高效，5安培開關(guān)穩(wěn)壓器 |
| 文件頁數(shù)： | 1/28頁 |
| 文件大?。?/td> | 438K |
| 代理商： | LTC3716 |
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LTC3716
The LTC
3716 is a 2-phase, VID programmable, synchro-
nous step-down switching regulator controller that drives
two N-channel external power MOSFET stages in a fixed fre-
quency architecture. The 2-phase controller drives its two
output stages out of phase at frequencies up to 300kHz to
minimize the RMS ripple currents in both input and output
capacitors. The 2-phase technique effectively multiplies the
fundamental frequency by two, improving transient re-
sponse while operating each channel at an optimum fre-
quency for efficiency. Thermal design is also simplified.
An operating mode select pin (FCB) can be used to regu-
late a secondary winding or select among three modes
including Burst Mode
TM
operation for highest efficiency. An
internal differential amplifier provides true remote sensing
of the regulated supply’s positive and negative output ter-
minals as required in high current applications.
The RUN/SS pin provides soft-start and optional timed,
short-circuit shutdown. Current foldback limits MOSFET
dissipation during short-circuit conditions when the
overcurrent latchoff is disabled. OPTI-LOOP compensation
allows the transient response to be optimized for a wide
range of output capacitors and ESR values.
2-Phase, 5-Bit VID,
Current Mode, High Efficiency,
Synchronous Step-Down
Switching Regulator
DESCRIPTIOU
, LTC and LT are registered trademarks of Linear Technology Corporation.
OPTI-LOOP and Burst Mode are trademarks of Linear Technology Corporation.
Figure 1. High Current Dual Phase Step-Down Converter
I
Mobile Computer CPU Supply
I
Output Stages Operate Antiphase Reducing Input
and Output Capacitance Requirements and Power
Supply Induced Noise
I
Dual Input Supply Capability for Load Sharing
I
5-Bit Mobile VID Code: V
OUT
= 0.6V to 1.75V
I
±
1% Output Voltage Accuracy
I
True Remote Sensing Differential Amplifier
I
Power Good Output Voltage Monitor
I
Supports Active Voltage Positioning
I
Current Mode Control Ensures Current Sharing
I
OPTI-LOOP
TM
Compensation Minimizes C
OUT
I
Three Operational Modes: PWM, Burst and Cycle Skip
I
Programmable Fixed Frequency: 150kHz to 300kHz
I
Wide V
IN
Range: 4V to 36V Operation
I
Adjustable Soft-Start Current Ramping
I
Internal Current Foldback and Short-Circuit Shutdown
I
Overvoltage Soft Latch Eliminates Nuisance Trips
I
Available in 36-Lead Narrow SSOP Package
APPLICATIU
3716 F01
TG1
BOOST1
SW1
BG1
PGND
SENSE1
+
SENSE1
–
TG2
BOOST2
SW2
BG2
INTV
CC
SENSE2
+
SENSE2
–
V
IN
RUN/SS
FCB
V
V
DIFFOUT
V
OS+
I
TH
SGND
PGOOD
ATTENIN
ATTENOUT
EAIN
VID0–VID4
LTC3716
0.1
μ
F
220pF
5 VID BITS
S
S
3.3k
+
10
μ
F
35V
×
4
+
C
1000
μ
F
4V
×
2
V
0.6V TO 1.75V
40A
1
μ
H
0.002
0.002
V
5V TO 28V
1
μ
H
0.47
μ
F
0.47
μ
F
D1
D2
10
μ
F
4
3
2
1
4
3
2
1
FEATURES
TYPICAL APPLICATIO
U
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PDF描述 |
|---|---|
| LTC3716EG | RADIATION HARDENED HIGH EFFICIENCY, 5 AMP SWITCHING REGULATORS |
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| LTC3720EGN | Single Phase VRM8.5 Current Mode Step-Down Controller |
| LTC3728L | Dual, 550kHz, 2-Phase Synchronous Regulators |
| LTC3728LCGN | Dual, 550kHz, 2-Phase Synchronous Regulators |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LTC3716EG | 功能描述:IC REG CTRLR BUCK 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:- 標準包裝: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) |
| LTC3716EG#PBF | 功能描述:IC REG CTRLR BUCK 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:- 標準包裝: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) |
| LTC3716EG#TR | 功能描述:IC REG CTRLR BUCK 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:- 標準包裝: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 |
| LTC3716EG#TRPBF | 功能描述:IC REG CTRLR BUCK 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:- 標準包裝: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) |
| LTC3717-1#PBF | 制造商:LINEAR 功能描述: 制造商:Linear Technology 功能描述: |
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