参数资料
型号: LTC3838EUHF#TRPBF
厂商: Linear Technology
文件页数: 2/54页
文件大小: 0K
描述: IC REG CTRLR BUCK PWM CM 38-QFN
标准包装: 2,500
系列: PolyPhase®
PWM 型: 电流模式
输出数: 2
频率 - 最大: 2MHz
电源电压: 4.5 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: 38-WFQFN 裸露焊盘
包装: 带卷 (TR)

LTC3838
ABSOLUTE MAXIMUM RATINGS
(Note 1)
V IN Voltage ................................................. –0.3V to 40V
BOOST1, BOOST2 Voltages ....................... –0.3V to 46V
SW1, SW2 Voltages ...................................... –5V to 40V
INTV CC , DRV CC1 , DRV CC2 , EXTV CC , PGOOD1,
PGOOD2, RUN1, RUN2, (BOOST1-SW1),
(BOOST2-SW2), MODE/PLLIN Voltages ...... –0.3V to 6V
V OUTSENSE1+ , V OUTSENSE1– , SENSE1 + , SENSE2 + ,
SENSE1 – , SENSE2 – Voltages ....................... –0.6V to 6V
TRACK/SS1, TRACK/SS2 Voltages .............. –0.3V to 5V
DTR1, DTR2, PHASMD, RT, V RNG1 , V RNG2 , V FB2 ,
ITH1, ITH2 Voltages ................ –0.3V to (INTV CC + 0.3V)
Operating Junction Temperature Range
(Note 2, 3, 4) .......................................... –40°C to 125°C
Storage Temperature Range .................. –65°C to 150°C
Lead Temperature (Soldering, 10 sec)
FE Package ....................................................... 300°C
PIN CONFIGURATION
TOP VIEW
TOP VIEW
DTR2
SENSE2 –
SENSE2 +
1
2
3
38 RUN2
37 PGOOD2
36 BOOST2
TRACK/SS2 1
ITH2 2
V RNG2 3
PHASMD 4
MODE/PLLIN 5
38 37 36 35 34 33 32
31 TG2
30 SW2
29 BG2
28 DRV CC2
27 EXTV CC
V FB2
TRACK/SS2
ITH2
V RNG2
PHASMD
4
5
6
7
8
35 TG2
34 SW2
33 BG2
32 DRV CC2
31 EXTV CC
CLKOUT 6
SGND 7
RT 8
V RNG1 9
ITH1 10
TRACK/SS1 11
V OUTSENSE1+ 12
39
PGND
26 INTV CC
25 PGND
24 V IN
23 DRV CC1
22 BG1
21 SW1
20 TG1
MODE/PLLIN 9
CLKOUT 10
SGND 11
RT 12
V RNG1 13
ITH1 14
TRACK/SS1 15
39
PGND
30 INTV CC
29 PGND
28 V IN
27 DRV CC1
26 BG1
25 SW1
24 TG1
13 14 15 16 17 18 19
V OUTSENSE1+ 16
V OUTSENSE1– 17
SENSE1 + 18
23 BOOST1
22 PGOOD1
21 RUN1
UHF PACKAGE
SENSE1 –
19
20 DTR1
38-LEAD (5mm 7mm) PLASTIC QFN
T JMAX = 125°C, θ JA = 34°C/W
EXPOSED PAD (PIN 39) IS PGND, MUST BE SOLDERED TO PCB
FE PACKAGE
38-LEAD PLASTIC TSSOP
T JMAX = 125°C, θ JA = 28°C/W
EXPOSED PAD (PIN 39) IS PGND, MUST BE SOLDERED TO PCB
3838fa
2
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