参数资料
型号: LTC3789EGN#PBF
厂商: Linear Technology
文件页数: 2/30页
文件大小: 0K
描述: IC REG CTRLR BST PWM CM 28-SSOP
标准包装: 49
PWM 型: 电流模式
输出数: 1
频率 - 最大: 710kHz
占空比: 98%
电源电压: 4 V ~ 38 V
降压:
升压:
回扫:
反相:
倍增器:
除法器:
Cuk:
隔离:
工作温度: -40°C ~ 125°C
封装/外壳: 28-SSOP(0.154",3.90mm 宽)
包装: 管件
LTC3789
ABSOLUTE MAXIMUM RATINGS (Note 1)
Input Supply Voltage (V IN ) ......................... 40V to –0.3V
Topside Driver Voltages
(BOOST1, BOOST2)................................... 46V to –0.3V
Switch Voltage (SW1, SW2).......................... 40V to –5V
Current Sense Voltages (I OSENSE+ , I OSENSE– ).. 40V to –0.3V
BOOST1, BOOST2 – SW1, SW2 ................... 6V to –0.3V
TG1, TG2 – SW1, SW2 ................................. 6V to –0.3V
EXTV CC Voltage ......................................... 14V to –0.3V
INTV CC Voltage ............................................ 6V to –0.3V
SENSE + , SENSE – Voltages .................... INTV CC to –0.3V
MODE/PLLIN, SS Voltages ................... INTV CC to –0.3V
PIN CONFIGURATION
TOP VIEW
V INSNS , V OUTSNS ........................................ 40V to –0.3V
BG1, BG2 Voltages ............................... INTV CC to –0.3V
I TH , FREQ, I LIM Voltages ....................... INTV CC to –0.3V
V FB Voltage ............................................... 2.7V to –0.3V
RUN, PGOOD Voltage .................................. 6V to –0.3V
Operating Junction Temperature Range
(Notes 2, 3) ............................................ –40°C to 125°C
Storage Temperature Range .................. –65°C to 125°C
INTV CC Peak Output Current ................................100mA
Lead Temperature (Soldering, 10 sec.)
GN Package...................................................... 300°C
TOP VIEW
V FB
SS
1
2
28 PGOOD
27 SW1
SENSE +
3
26 TG1
28 27 26 25 24 23
SENSE –
I TH
4
5
25 BOOST1
24 PGND
SENSE – 1
I TH 2
22 BOOST1
21 PGND
SGND 6
MODE/PLLIN 7
FREQ 8
RUN 9
V INSNS 10
V OUTSNS 11
I LIM 12
23 BG1
22 V IN
21 INTV CC
20 EXTV CC
19 BG2
18 BOOST2
17 TG2
SGND 3
MODE/PLLIN 4
FREQ 5
RUN 6
V INSNS 7
V OUTSNS 8
29
SGND
9 10 11 12 13 14
20 BG1
19 V IN
18 INTV CC
17 EXTV CC
16 BG2
15 BOOST2
I OSENSE+ 13
16 SW2
I OSENSE– 14 15 TRIM
GN PACKAGE
28-LEAD NARROW PLASTIC SSOP
T JMAX = 125°C, θ JA = 80°C/W
ORDER INFORMATION
UFD PACKAGE
28-LEAD (4mm × 5mm) PLASTIC QFN
T JMAX = 125°C, θ JA = 34°C/W
EXPOSED PAD (PIN 29) IS SGND, MUST BE SOLDERED TO PCB
LEAD FREE FINISH
LTC3789EGN#PBF
LTC3789IGN#PBF
LTC3789EUFD#PBF
LTC3789IUFD#PBF
TAPE AND REEL
LTC3789EGN#TRPBF
LTC3789IGN#TRPBF
LTC3789EUFD#TRPBF
LTC3789IUFD#TRPBF
PART MARKING*
LTC3789
LTC3789
3789
3789
PACKAGE DESCRIPTION
28-Lead Narrow Plastic SSOP
28-Lead Narrow Plastic SSOP
28-Lead (4mm × 5mm) Plastic QFN
28-Lead (4mm × 5mm) Plastic QFN
TEMPERATURE RANGE
–40°C to 125°C
–40°C to 125°C
–40°C to 125°C
–40°C to 125°C
Consult LTC Marketing for parts specified with wider operating temperature ranges. *The temperature grade is identified by a label on the shipping container.
For more information on lead free part marking, go to: http://www.linear.com/leadfree/
For more information on tape and reel specifications, go to: http://www.linear.com/tapeandreel/
3789fa
2
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LTC3789EUFD#PBF 功能描述:IC REG CTRLR BST PWM CM 28-QFN 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
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LTC3789IGN#PBF 功能描述:IC REG CTRLR BST PWM CM 28-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
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