参数资料
型号: LTC3713EG
厂商: Linear Technology
文件页数: 2/24页
文件大小: 0K
描述: IC REG CTRLR BUCK PWM CM 24-SSOP
标准包装: 59
PWM 型: 电流模式
输出数: 1
频率 - 最大: 1.5MHz
占空比: 90%
电源电压: 1.5 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: 24-SSOP(0.209",5.30mm 宽)
包装: 管件
LTC3713
ABSOLUTE
AXI U
RATI GS
PACKAGE/ORDER I FOR ATIO
(Note 1)
Input Supply Voltage (V IN2 ) .......................10V to – 0.3V
Boosted Topside Driver Supply Voltage
(BOOST) ............................................... 42V to – 0.3V
V IN1 , I ON , SW1, SENSE + Voltages ............. 36V to – 0.3V
RUN/SS, PGOOD Voltages ......................... 7V to – 0.3V
FCB, V ON , V RNG Voltages .......... INTV CC + 0.3V to – 0.3V
I TH , V FB1 , SENSE – Voltages ..................... 2.7V to – 0.3V
SW2 Voltage ............................................. 36V to – 0.4V
V FB2 Voltage ................................................. V IN2 + 0.3V
SHDN Voltage ......................................................... 10V
RUN/SS
V ON
PGOOD
V RNG
FCB
I TH
SGND1
I ON
V FB1
1
2
3
4
5
6
7
8
9
TOP VIEW
24 BOOST
23 TG
22 SW1
21 SENSE +
20 SENSE –
19 PGND1
18 BG
17 INTV CC
16 V IN1
ORDER PART
NUMBER
LTC3713EG
V FB2 12
TG, BG, INTV CC Peak Currents..................................  2A
TG, BG, INTV CC RMS Currents ............................ 50mA
Operating Ambient Temperature
Range (Note 4) ................................... – 40 ° C to 85 ° C
Junction Temperature (Note 2) ............................ 125 ° C
Storage Temperature Range ................. – 65 ° C to 150 ° C
Lead Temperature (Soldering, 10 sec).................. 300 ° C
SHDN 10 15 V IN2
SGND2 11 14 PGND2
13 SW2
G PACKAGE
24-LEAD PLASTIC SSOP
T JMAX = 125 ° C, θ JA = 130 ° C/ W
Consult LTC Marketing for parts specified with wider operating temperature ranges.
ELECTRICAL CHARACTERISTICS The q denotes specifications which apply over the full operating
temperature range, otherwise specifications are T A = 25 ° C. V IN1 = 15V, V IN2 = 1.5V unless otherwise noted.
SYMBOL PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
Buck Regulator
I Q(VIN1)
Input DC Supply Current (V IN1 )
Normal
Shutdown Supply Current
900
15
2000
30
μ A
μ A
V FB1
I FB1
Feedback Reference Voltage
Feedback Current
I TH = 1.2V (Note 3)
(Note 3)
q
0.792
0.800
–5
0.808
± 50
V
nA
? V FB1(LINEREG) Feedback Voltage Line Regulation
V IN1 = 4V to 30V, I TH = 1.2V (Note 3)
0.002
%/V
? V FB1(LOADREG) Feedback Voltage Load Regulation
I TH = 0.5V to 1.9V (Note 3)
q
– 0.05
– 0.3
%
g m(EA)
V FCB
I FCB
t ON
t ON(MIN)
Error Amplifier Transconductance
Forced Continuous Threshold
Forced Continuous Pin Current
On-Time
Minimum On-Time
I TH = 1.2V (Note 3)
V FCB = 0.8V
I ON = 60 μ A, V ON = 1.5V
I ON = 30 μ A, V ON = 1.5V
I ON = 180 μ A
q
q
1.4
0.76
200
400
1.7
0.8
–1
250
500
50
2
0.84
–2
300
600
100
mS
V
μ A
ns
ns
ns
t OFF(MIN)
Minimum Off-Time
250
400
ns
V SENSE(MAX)
Maximum Current Sense Threshold
V PGND – V SW
V RNG = 1V, V FB1 = 0.76V
V RNG = 0V, V FB1 = 0.76V
V RNG = INTV CC , V FB1 = 0.76V
q
q
q
113
79
158
133
93
186
153
107
214
mV
mV
mV
V SENSE(MIN)
Minimum Current Sense Threshold
V PGND – V SW
V RNG = 1V, V FB1 = 0.84V
V RNG = 0V, V FB1 = 0.84V
V RNG = INTV CC , V FB1 = 0.84V
– 67
– 47
– 93
mV
mV
mV
? V FB1(OV)
? V FB1(UV)
Output Overvoltage Fault Threshold
Output Undervoltage Fault Threshold
5.5
520
7.5
600
9.5
680
%
mV
V RUN/SS(ON)
V RUN/SS(LE)
V RUN/SS(LT)
RUN Pin Start Threshold
RUN Pin Latchoff Enable Threshold
RUN Pin Latchoff Threshold
RUN/SS Pin Rising
RUN/SS Pin Falling
q
0.8
1.5
4
3.5
2
4.5
4.2
V
V
V
3713fa
2
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