参数资料
型号: LTC1709EG-8
厂商: Linear Technology
文件页数: 28/28页
文件大小: 0K
描述: IC REG CTRLR BUCK PWM CM 36-SSOP
标准包装: 37
PWM 型: 电流模式
输出数: 1
频率 - 最大: 360kHz
占空比: 99.5%
电源电压: 4 V ~ 36 V
降压:
升压:
回扫:
反相:
倍增器:
除法器:
Cuk:
隔离:
工作温度: -40°C ~ 85°C
封装/外壳: 36-SSOP(0.209",5.30mm 宽)
包装: 管件
LTC1709-8/LTC1709-9
TYPICAL APPLICATIO
LTC1709-8
0.1 μ F
2.7k
INTV CC
15k
6.8k
680pF
1000pF
10k
51k
100pF
1
2
3
4
5
6
7
8
9
10
11
12
13
RUNN/SS
SENSE1 +
SENSE1 –
EAIN
PLLFLTR
PLLIN
NC
I TH
SGND
V DIFFOUT
V OS –
V OS +
SENSE2 –
NC
TG1
SW1
BOOST1
V IN
BG1
EXTV CC
INTV CC
PGND
BG2
BOOST2
SW2
TG2
36
35
34
33
32
31
30
29
28
27
26
25
24
0.22 μ F
5V (OPT)
10 μ F
0.22 μ F
10 ?
0.1 μ F
L1
M1
C IN
47 μ F 35V
M3
0.004 ?
M2
M4
0.004 ?
D1
MBRS140T3
+
C OUT
D2
MBRS140T3
V IN
5V TO 28V
V OUT
1.3V TO 3.5V
1000pF
14
SENSE2 +
PGOOD
23
100k
L2
20A
470pF
15
16
17
ATTENOUT
ATTENIN
VID0
V BIAS
VID4
VID3
22
21
20
0.1 μ F
10 ?
PGOOD
SWITCHING FREQUENCY = 200kHz
C IN : 5A RIPPLE CURRENT RATING REQUIRED
C OUT : 4 × 180 μ F/4V PANASONIC SP
L1 TO L2: 1.5 μ H SUMIDA CEP125-1R5MC
M1 TO M4: FAIRCHILD FDS7760A
18
VID1
VID2
19
OR Siliconix Si4430
VID INPUTS
170989 F12
Figure 12. 1.3V to 3.5V/20A CPU Power Supply with Active Voltage Positioning
RELATED PARTS
PART NUMBER
DESCRIPTION
COMMENTS
LTC1438/LTC1439
Dual High Efficiency Low Noise Synchronous Step-Down Switching Regulators POR, Auxiliary Regulator
LTC1538-AUX
LTC1436A-PLL
Dual High Efficiency Low Noise Synchronous Step-Down Switching Regulator
High Efficiency Low Noise Synchronous Step-Down Switching Regulator
Auxiliary Regulator, 5V Standby
Adaptive Power TM Mode, 24-Pin SSOP
LTC1628/LTC1628-PG Dual High Efficiency, 2-Phase Synchronous Step-Down Switching Regulators
LTC1629/LTC1629-PG PolyPhase High Efficiency Controllers
LTC1929/LTC1929-PG 2-Phase High Efficiency Controllers
Constant Frequency, Standby, 5V and 3.3V LDOs
Expandable Up to 12 Phases, G-28, Up to 120A
Adjustable Output Up to 40A, G-28
LTC1702/LTC1703
LTC1708-PG
LTC1709
LTC1709-7
LTC1735
LTC1736
Dual High Efficiency, 2-Phase Synchronous Step-Down Switching Regulators
Dual High Efficiency, 2-Phase Synchronous Step-Down Switching Regulator
with 5-Bit VID and Power Good Indication
High Efficiency, 2-Phase Synchronous Step-Down Switching Regulator
with 5-Bit VID and Fault Coupling Control
High Efficiency, 2-Phase Synchronous Step-Down Switching Regulator
with 5-Bit Mobile VID, and Three Low-Current Modes
High Efficiency Synchronous Step-Down Controller
High Efficiency Synchronous Step-Down Controller with 5-Bit VID
500kHz, 25MHz GBW
1.3V ≤ V OUT ≤ 3.5V, Current Mode Ensures
Accurate Current Sharing, 3.5V ≤ V IN ≤ 36V
1.3V ≤ V OUT ≤ 3.5V, Current Mode Ensures
Accurate Current Sharing, 3.5V ≤ V IN ≤ 36V
0.9V ≤ V OUT ≤ 2V, Current Mode Ensures
Accurate Current Sharing, 3.5V ≤ V IN ≤ 36V
Burst Mode TM Operation, 16-Pin Narrow SSOP,
Fault Protection, 3.5V ≤ V IN ≤ 36V
Output Fault Protection, Power Good, GN-24,
3.5V ≤ V IN ≤ 36V, 0.925V ≤ V OUT ≤ 2V
Adaptive Power and Burst Mode are trademarks of Linear Technology Corporation.
28
Linear Technology Corporation
1630 McCarthy Blvd., Milpitas, CA 95035-7417
(408)432-1900 q FAX: (408) 434-0507 q www.linear-tech.com
170989f LT/LCG 0900 4K ? PRINTED IN USA
? LINEAR TECHNOLOGY CORPORATION 2000
相关PDF资料
PDF描述
LTC1709EG-9#PBF IC REG CTRLR BUCK PWM CM 36-SSOP
LTC1709EG-9 IC REG CTRLR BUCK PWM CM 36-SSOP
LTC1775CS#TRPBF IC REG CTRLR BUCK PWM CM 16-SOIC
LTC1775CS#TR IC REG CTRLR BUCK PWM CM 16-SOIC
H4BBT-10112-G1-ND JUMPER-H9992TR/A3047G/H9992TR12"
相关代理商/技术参数
参数描述
LTC1709EG-8#PBF 功能描述:IC REG CTRLR BUCK PWM CM 36-SSOP RoHS:是 类别:集成电路 (IC) >> PMIC - 稳压器 - DC DC 切换控制器 系列:- 标准包装:2,000 系列:- PWM 型:电流模式 输出数:1 频率 - 最大:1MHz 占空比:50% 电源电压:9 V ~ 10 V 降压:无 升压:是 回扫:是 反相:无 倍增器:无 除法器:无 Cuk:无 隔离:无 工作温度:-40°C ~ 85°C 封装/外壳:8-TSSOP(0.173",4.40mm 宽) 包装:带卷 (TR)
LTC1709EG-8#TR 功能描述:IC REG CTRLR BUCK PWM CM 36-SSOP RoHS:否 类别:集成电路 (IC) >> PMIC - 稳压器 - DC DC 切换控制器 系列:- 标准包装:4,500 系列:PowerWise® PWM 型:控制器 输出数:1 频率 - 最大:1MHz 占空比:95% 电源电压:2.8 V ~ 5.5 V 降压:是 升压:无 回扫:无 反相:无 倍增器:无 除法器:无 Cuk:无 隔离:无 工作温度:-40°C ~ 125°C 封装/外壳:6-WDFN 裸露焊盘 包装:带卷 (TR) 配用:LM1771EVAL-ND - BOARD EVALUATION LM1771 其它名称:LM1771SSDX
LTC1709EG-8#TRPBF 功能描述:IC REG CTRLR BUCK PWM CM 36-SSOP RoHS:是 类别:集成电路 (IC) >> PMIC - 稳压器 - DC DC 切换控制器 系列:- 标准包装:4,500 系列:PowerWise® PWM 型:控制器 输出数:1 频率 - 最大:1MHz 占空比:95% 电源电压:2.8 V ~ 5.5 V 降压:是 升压:无 回扫:无 反相:无 倍增器:无 除法器:无 Cuk:无 隔离:无 工作温度:-40°C ~ 125°C 封装/外壳:6-WDFN 裸露焊盘 包装:带卷 (TR) 配用:LM1771EVAL-ND - BOARD EVALUATION LM1771 其它名称:LM1771SSDX
LTC1709EG-85 功能描述:IC REG CTRLR BUCK PWM CM 36-SSOP RoHS:否 类别:集成电路 (IC) >> PMIC - 稳压器 - DC DC 切换控制器 系列:- 标准包装:4,500 系列:PowerWise® PWM 型:控制器 输出数:1 频率 - 最大:1MHz 占空比:95% 电源电压:2.8 V ~ 5.5 V 降压:是 升压:无 回扫:无 反相:无 倍增器:无 除法器:无 Cuk:无 隔离:无 工作温度:-40°C ~ 125°C 封装/外壳:6-WDFN 裸露焊盘 包装:带卷 (TR) 配用:LM1771EVAL-ND - BOARD EVALUATION LM1771 其它名称:LM1771SSDX
LTC1709EG-85#PBF 功能描述:IC REG CTRLR BUCK PWM CM 36-SSOP RoHS:是 类别:集成电路 (IC) >> PMIC - 稳压器 - DC DC 切换控制器 系列:- 标准包装:4,500 系列:PowerWise® PWM 型:控制器 输出数:1 频率 - 最大:1MHz 占空比:95% 电源电压:2.8 V ~ 5.5 V 降压:是 升压:无 回扫:无 反相:无 倍增器:无 除法器:无 Cuk:无 隔离:无 工作温度:-40°C ~ 125°C 封装/外壳:6-WDFN 裸露焊盘 包装:带卷 (TR) 配用:LM1771EVAL-ND - BOARD EVALUATION LM1771 其它名称:LM1771SSDX