参数资料
型号: LT1073CN8-12
厂商: Linear Technology
文件页数: 2/16页
文件大小: 0K
描述: IC REG BUCK BST INV 12V .4A 8DIP
标准包装: 50
类型: 降压(降压),升压(升压),反相
输出类型: 固定
输出数: 1
输出电压: 12V
输入电压: 1 V ~ 30 V
频率 - 开关: 19kHz
电流 - 输出: 400mA
同步整流器:
工作温度: 0°C ~ 70°C
安装类型: 通孔
封装/外壳: 8-DIP(0.300",7.62mm)
包装: 管件
供应商设备封装: 8-PDIP
LT1073
ABSOLUTE
(Note 1)
AXI U RATI GS
PACKAGE/ORDER I FOR ATIO
Supply Voltage, Step-Up Mode ................................ 15V
Supply Voltage, Step-Down Mode ........................... 36V
TOP VIEW
ORDER PART
NUMBER
SW1 Pin Voltage ...................................................... 50V
SW2 Pin Voltage ........................................... –0.4 to V IN
Feedback Pin Voltage (LT1073) ................................. 5V
Switch Current ........................................................ 1.5A
I LIM 1
V IN 2
SW1 3
SW2 4
8
7
6
5
FB (SENSE)*
SET
A0
GND
LT1073CN8
LT1073CN8-5
LT1073CN8-12
LT1073CS8
Maximum Power Dissipation ............................. 500mW
Operating Temperature Range ..................... 0 ° C to 70 ° C
Storage Temperature Range ................. – 65 ° C to 150 ° C
Lead Temperature (Soldering, 10 sec).................. 300 ° C
N8 PACKAGE S8 PACKAGE
8-LEAD PDIP 8-LEAD PLASTIC SO
*FIXED VERSIONS
T JMAX = 125 ° C, θ JA = 100 ° C/W (N8)
T JMAX = 125 ° C, θ JA = 120 ° C/W (S8)
LT1073CS8-5
LT1073CS8-12
S8 PART MARKING
1073
10735
107312
Consult factory for parts specified with wider operating temperature ranges.
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 = 1.5V unless otherwise specified.
SYMBOL
I Q
I Q
PARAMETER
Quiescent Current
Quiescent Current, Step-Up
Mode Configuration
CONDITIONS
Switch Off
No Load
LT1073-5
LT1073-12
q
MIN
TYP
95
135
250
MAX
130
UNITS
μ A
μ A
μ A
V IN
Input Voltage
Step-Up Mode
q
1.15
12.6
V
1.0
12.6
V
Step-Down Mode
q
30
V
Comparator Trip Point Voltage
LT1073 (Note 2)
q
202
212
222
mV
V OUT
Output Sense Voltage
Comparator Hysteresis
Output Hysteresis
LT1073-5 (Note 3)
LT1073-12 (Note 3)
LT1073
LT1073-5
q
q
q
q
4.75
11.4
5
12
5
125
5.25
12.6
10
250
V
V
mV
mV
LT1073-12
q
300
600
mV
f OSC
Oscillator Frequency
q
15
19
23
kHz
DC
t ON
I FB
I SET
V AO
V CESAT
Duty Cycle
Switch ON Time
Feedback Pin Bias Current
Set Pin Bias Current
AO Output Low
Reference Line Regulation
Switch Saturation Voltage
Full Load (V FB = V REF )
LT1073, V FB = 0V
V SET = V REF
I AO = –100 μ A
1V ≤ V IN ≤ 1.5V
1.5V ≤ V IN ≤ 12V
V IN = 1.5V, I SW = 400mA
q
q
q
q
q
q
q
65
30
72
38
10
60
0.15
0.35
0.05
300
80
50
50
120
0.4
1.0
0.1
400
%
μ s
nA
nA
V
%V
%V
mV
Set-Up Mode
V IN = 1.5V, I SW = 500mA
V IN = 5V, I SW = 1A
q
q
q
400
700
600
550
750
1000
1500
mV
mV
mV
mV
mV
A V
A2 Error Amp Gain
R L = 100k ? (Note 4)
q
400
1000
V/V
2
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