参数资料
型号: LTC3707IGN#TRPBF
厂商: Linear Technology
文件页数: 2/32页
文件大小: 0K
描述: IC REG CTRLR BUCK PWM CM 28-SSOP
标准包装: 2,500
系列: PolyPhase®
PWM 型: 电流模式
输出数: 2
频率 - 最大: 360kHz
占空比: 99.4%
电源电压: 4.5 V ~ 28 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-SSOP(0.154",3.90mm 宽)
包装: 带卷 (TR)
LTC3707
ABSOLUTE MAXIMUM RATINGS
(Note 1)
PIN CONFIGURATION
Input Supply Voltage (V IN ) .........................30V to – 0.3V
Top Side Driver Voltages
(BOOST1, BOOST2) ................................... 36V to –0.3V
Switch Voltage (SW1, SW2) ......................... 30V to –5V
INTV CC, EXTV CC , RUN/SS1, RUN/SS2, (BOOST1-SW1),
(BOOST2-SW2), PGOOD.............................. 7V to –0.3V
SENSE1 + , SENSE2 + , SENSE1 – ,
SENSE2 – Voltages .........................(1.1)INTV CC to –0.3V
FREQSET, STBYMD, FCB Voltage ......... INTV CC to –0.3V
RUN/SS1
SENSE1 +
SENSE1 –
V OSENSE1
FREQSET
STBYMD
FCB
I TH1
SGND
1
2
3
4
5
6
7
8
9
TOP VIEW
28 PGOOD
27 TG1
26 SW1
25 BOOST1
24 V IN
23 BG1
22 EXTV CC
21 INTV CC
20 PGND
I TH1, I TH2 , V OSENSE1 , V OSENSE2 Voltages ... 2.7V to –0.3V
Peak Output Current <10μs (TG1, TG2, BG1, BG2) .....3A
INTV CC Peak Output Current ................................. 40mA
Operating Temperature Range (Note 2).... –40°C to 85°C
Junction Temperature (Note 3) ............................. 125°C
3.3V OUT 10
I TH2 11
V OSENSE2 12
SENSE2 – 13
SENSE2 + 14
19 BG2
18 BOOST2
17 SW2
16 TG2
15 RUN/SS2
Storage Temperature Range................... –65°C to 150°C
Lead Temperature (Soldering, 10 sec) .................. 300°C
ORDER INFORMATION
GN PACKAGE
28-LEAD PLASTIC SSOP
T JMAX = 125°C, θ JA = 95°C/W
LEAD FREE FINISH
LTC3707EGN#PBF
LTC3707IGN#PBF
LEAD BASED FINISH
LTC3707EGN
LTC3707IGN
TAPE AND REEL
LTC3707EGN#TRPBF
LTC3707IGN#TRPBF
TAPE AND REEL
LTC3707EGN#TR
LTC3707IGN#TR
PART MARKING
3707EGN
3707IGN
PART MARKING
3707EGN
3707IGN
PACKAGE DESCRIPTION
28-Lead Plastic SSOP
28-Lead Plastic SSOP
PACKAGE DESCRIPTION
28-Lead Plastic SSOP
28-Lead Plastic SSOP
TEMPERATURE RANGE
–40°C to 85°C
–40°C to 85°C
TEMPERATURE RANGE
–40°C to 85°C
–40°C to 85°C
Consult LTC Marketing for parts speci?ed with wider operating temperature ranges.
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 = 15V, V RUN/SS1, 2 = 5V unless otherwise noted.
SYMBOL
PARAMETER
CONDITIONS
MIN
TYP
MAX UNITS
V OSENSE1, 2
I OSENSE1, 2
V REFLNREG
V LOADREG
Regulated Feedback Voltage
Feedback Current
Reference Voltage Line Regulation
Output Voltage Load Regulation
(Note 4); I TH1, 2 Voltage = 1.2V
(Note 4)
V IN = 3.6V to 30V (Note 4)
(Note 4)
Measured in Servo Loop; Δ I TH Voltage = 1.2V to 0.7V
Measured in Servo Loop; Δ I TH Voltage = 1.2V to 2.0V
l
l
l
0.788
0.800
–5
0.002
0.1
–0.1
0.812
–50
0.02
0.5
–0.5
V
nA
%/V
%
%
g m1,2
Transconductance Ampli?er g m
I TH1, 2 = 1.2V; Sink/Source 5μA; (Note 4)
1.3
mmho
3707fb
2
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