参数资料
型号: LT1533IS#PBF
厂商: Linear Technology
文件页数: 2/20页
文件大小: 0K
描述: IC REG PUSH-PLL CTRLR ISO 16SOIC
标准包装: 50
类型: 推挽式控制器,隔离式
输出类型: 可调式
输出数: 1
输出电压: 1.3 V ~ 30 V
输入电压: 2.7 V ~ 23 V
PWM 型: 电流模式
频率 - 开关: 200kHz ~ 250kHz
电流 - 输出: 1A
同步整流器:
工作温度: -40°C ~ 100°C
安装类型: 表面贴装
封装/外壳: 16-SOIC(0.154",3.90mm 宽)
包装: 管件
供应商设备封装: 16-SOIC
产品目录页面: 1327 (CN2011-ZH PDF)
LT1533
ABSOLUTE M AXI M U M RATINGS
(Note 1)
PACKAGE/ORDER I N FOR M ATIO N
Input Voltage (V IN ) .................................................. 30V
Switc h Voltage (COL A, COL B) ............................... 30V
SHDN Pin Voltage .................................................... 30V
NC 1
COL A 2
TOP VIEW
16 PGND
15 COL B
ORDER PART
NUMBER
Feedback Pin Current ............................................ 10mA
Negative Feedback Pin Current ............................ ± 10mA
Storage Temperature Range ................. – 65 ° C to 150 ° C
Maximum Junction Temperature ......................... 125 ° C
Operating Junction Temperature Range
LT1533C ............................................... 0 ° C to 100 ° C
LT1533I ............................................ – 40 ° C to 100 ° C
Lead Temperature (Soldering, 10 sec).................. 300 ° C
DUTY 3 14 V IN
SYNC 4 13 R VSL
C T 5 12 R CSL
R T 6 11 SHDN
FB 7 10 V C
NFB 8 9 GND
S PACKAGE
16-LEAD NARROW PLASTIC SO
T JMAX = 125 ° C, θ JA = 100 ° C/ W
LT1533CS
LT1533IS
Consult factory for Military grade parts.
ELECTRICAL CHARACTERISTICS
V IN = 5V, V C = 0.9V, V FB = V REF . COL A, COL B, SHDN, NFB, DUTY pins open, unless otherwise noted.
SYMBOL
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
Supply and Protection
V IN
V IN(MIN)
Recommended Operating Range
Minimum Input Voltage
q
q
2.7
2.55
23
2.7
V
V
I VIN
I VIN(OFF)
Supply Current
Shutdown Supply Current
2.7V ≤ V IN ≤ 23V, R VSL , R CSL , R T = 17k
2.7V ≤ V IN ≤ 23V, V SHDN = 0V
q
q
12
12
18
30
mA
μ A
V SHDN
Shutdown Threshold
2.7V ≤ V IN ≤ 23V
q
0.4
0.8
1.2
V
I SHDN
Shutdown Input Current
–2
μ A
Error Amplifiers
V REF
I FB
FB REG
Reference Voltage
Feedback Input Current
Reference Voltage Line Regulation
Measured at Feedback Pin
V FB = V REF
2.7V ≤ V IN ≤ 23V
q
q
q
1.235
1.215
1.250
1.250
250
0.003
1.265
1.275
900
0.03
V
V
nA
%/V
V NFR
Negative Feedback Reference Voltage
Measured at Negative Feedback Pin with
q
– 2.550
– 2.500
– 2.420
V
Feedback Pin Open
I NFR
Negative Feedback Input Current
V NFB = V NFR
q
– 37
– 25
μ A
NFB REG
Negative Feedback Reference Voltage
2.7V ≤ V IN ≤ 23V
q
0.002
0.05
%/V
Line Regulation
2
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