参数资料
型号: LTC1709EG-8
厂商: Linear Technology
文件页数: 2/28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
ABSOLUTE
(Note 1)
AXI U RATI GS
PACKAGE/ORDER I FOR ATIO
Input Supply Voltage (V IN ).........................36V to – 0.3V
Topside Driver Voltages (BOOST1,2) .........42V to – 0.3V
RUNN/SS
1
TOP VIEW
36 NC
ORDER PART
NUMBER
I TH
Switch Voltage (SW1, 2) ..............................36V to –5V
SENSE1 + , SENSE2 + , SENSE1 – ,
SENSE2 – Voltages ........................ (1.1)INTV CC to – 0.3V
EAIN, V OS+ , V OS– , EXTV CC , INTV CC , RUN/SS,
V BIAS , ATTENIN, ATTENOUT, PGOOD,
VID0–VID4, Voltages ...................................7V to – 0.3V
Boosted Driver Voltage (BOOST-SW) ..........7V to – 0.3V
PLLFLTR, PLLIN, V DIFFOUT Voltages .... INTV CC to – 0.3V
I TH Voltage ................................................2.7V to – 0.3V
Peak Output Current <1 μ s(TGL1,2, BG1,2) ................ 3A
INTV CC RMS Output Current ................................ 50mA
Operating Ambient Temperature Range
(Note 2) ................................................ – 40 ° C to 85 ° C
Junction Temperature (Note 3) ............................. 125 ° C
Storage Temperature Range ................. – 65 ° C to 150 ° C
Lead Temperature (Soldering, 10 sec).................. 300 ° C
SENSE1 + 2
SENSE1 – 3
EAIN 4
PLLFLTR 5
PLLIN 6
NC 7
8
SGND 9
V DIFFOUT 10
V OS – 11
V OS + 12
SENSE2 – 13
SENSE2 + 14
ATTENOUT 15
ATTENIN 16
VID0 17
VID1 18
35 TG1
34 SW1
33 BOOST1
32 V IN
31 BG1
30 EXTV CC
29 INTV CC
28 PGND
27 BG2
26 BOOST2
25 SW2
24 TG2
23 PGOOD
22 V BIAS
21 VID4
20 VID3
19 VID2
LTC1709EG-8
LTC1709EG-9
G PACKAGE
36-LEAD PLASTIC SSOP
T JMAX = 125 ° C, θ JA = 90 ° C/W
Consult factory for Industrial and Military grade parts.
ELECTRICAL CHARACTERISTICS The q denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at T A = 25 ° C. V IN = 15V, V BIAS = 5V, V RUN/SS = 5V unless otherwise noted.
SYMBOL
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
Main Control Loop
V EAIN
V SENSEMAX
I INEAIN
V LOADREG
V REFLNREG
V OVL
UVLO
Regulated Feedback Voltage
Maximum Current Sense Threshold
Feedback Current
Output Voltage Load Regulation
Reference Voltage Line Regulation
Output Overvoltage Threshold
Undervoltage Lockout
I TH Voltage = 1.2V (Note 4)
V SENSE – = 5V
(Note 4)
(Note 4)
Measured in Servo Loop, ? I TH Voltage: 1.2V to 0.7V
Measured in Servo Loop, ? I TH Voltage: 1.2V to 2V
V IN = 3.6V to 30V (Note 4)
Measured at V EAIN
V IN Ramping Down
q
q
q
q
q
0.792
62
0.84
3
0.800
75
–5
0.1
– 0.1
0.002
0.86
3.5
0.808
88
– 50
0.5
– 0.5
0.02
0.88
4
V
mV
nA
%
%
%/V
V
V
g m
g mOL
Transconductance Amplifier g m
Transconductance Amplifier Gain
I TH = 1.2V, Sink/Source 5 μ A (Note 4)
I TH = 1.2V, (g m xZ L ; No Ext Load) (Note 4)
3
1.5
mmho
V/mV
I Q
Input DC Supply Current
Normal Mode
Shutdown
(Note 5)
EXTV CC Tied to V OUT , V OUT = 5V
V RUN/SS = 0V
470
20
40
μ A
μ A
I RUN/SS
Soft-Start Charge Current
V RUN/SS = 1.9V
– 0.5
–1.2
μ A
V RUN/SS
RUN/SS Pin ON Arming
V RUN/SS Rising
1.0
1.5
1.9
V
2
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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
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