参数资料
型号: LTC3836EUFD#TRPBF
厂商: Linear Technology
文件页数: 2/30页
文件大小: 0K
描述: IC REG CTRLR BUCK PWM CM 28-QFN
标准包装: 2,500
系列: PolyPhase®
PWM 型: 电流模式
输出数: 2
频率 - 最大: 825kHz
占空比: 97%
电源电压: 2.75 V ~ 4.5 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: 28-WFQFN 裸露焊盘
包装: 带卷 (TR)

LTC3836
ABSOLUTE MAXIMUM RATINGS
(Note 1)
BOOST1, BOOST2 Voltages ....................... –0.3V to 10V
Input Supply Voltage (V IN ) ........................ –0.3V to 4.5V
PLLLPF, RUN/SS, SYNC/FCB,
SENSE1 + , SENSE2 + ,
IPRG1, IPRG2 Voltages.................. –0.3V to (V IN + 0.3V)
V FB1 , V FB2 , I TH1 , I TH2 ,
TRACK/SS2 Voltages ................................ –0.3V to 2.4V
PIN CONFIGURATION
TOP VIEW
SW1, SW2 Voltages ............................... –2V to V IN + 1V
PGOOD....................................................... –0.3V to 10V
Operating Temperature Range (Note 2).... –40°C to 85°C
Storage Temperature Range................... –65°C to 125°C
Junction Temperature (Note 3) ............................. 125°C
TOP VIEW
SW1
N/C
1
2
28 SENSE1 +
27 BOOST1
IPRG1
3
26 PGND
28 27 26 25 24 23
V FB1
I TH1
IPRG2
4
5
6
25 BG1
24 SYNC/FCB
23 TG1
VFB1 1
ITH1 2
IPRG2 3
22 BG1
21 SYNC/FCB
20 TG1
PLLLPF
7
22 PGND
PLLLPF 4
29
19 PGND
V IN
15 SENSE2
SGND     8
9
TRACK/SS2 10
V FB2 11
I TH2 12
PGOOD 13
SW2 14
21 TG2
20 RUN/SS
19 BG2
18 N/C
17 PGND
16 BOOST2
+
SGND 5
V IN 6
TRACK/SS2 7
VFB2 8
9 10 11 12 13 14
UFD PACKAGE
18 TG2
17 RUN/SS
16 N/C
15 BG2
GN PACKAGE
28-LEAD PLASTIC SSOP
T JMAX = 125°C, θ JA = 90°C/W
ORDER INFORMATION
28-LEAD (4mm × 5mm) PLASTIC QFN
T JMAX = 125°C, θ JA = 43°C/W
EXPOSED PAD (PIN 29) IS GND, MUST BE SOLDERED TO PCB
LEAD FREE FINISH
LTC3836EGN#PBF
LTC3836EUFD#PBF
TAPE AND REEL
LTC3836EGN#TRPBF
LTC3836EUFD#TRPBF
PART MARKING
LTC3836EGN
3836
PACKAGE DESCRIPTION
28-Lead Plastic SSOP
28-Lead (4mm × 5mm) Plastic QFN
TEMPERATURE RANGE
–40°C to 85°C
–40°C to 85°C
Consult LTC Marketing for parts speci?ed with wider operating temperature ranges.
Consult LTC Marketing for information on non-standard lead based ?nish parts.
For more information on lead free part marking, go to: http://www.linear.com/leadfree/
For more information on tape and reel speci?cations, go to: http://www.linear.com/tapeandreel/
ELECTRICAL CHARACTERISTICS
The l denotes the speci?cations which apply over the full operating
temperature range, otherwise speci?cations are at T A = 25°C. V IN = 3.3V unless otherwise speci?ed.
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
Main Control Loops
Input DC Supply Current
(Note 4)
Normal Mode
Shutdown
UVLO
RUN/SS = V IN
RUN/SS = 0V
V IN = UVLO Threshold –200mV
450
6.5
4
700
15
10
μA
μA
μA
3836fb
2
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