参数资料
型号: AP1538SG-13
厂商: Diodes Inc
文件页数: 5/13页
文件大小: 0K
描述: IC REG BUCK ADJ 3A 8SOIC
产品变化通告: Wire Change 18/June/2008
Copper Bond Wire Change 13/Jan/2012
标准包装: 2,500
类型: 降压(降压)
输出类型: 可调式
输出数: 1
输出电压: 0.8 V ~ 18 V
输入电压: 3.6 V ~ 18 V
频率 - 开关: 300kHz
电流 - 输出: 3A
同步整流器:
工作温度: -20°C ~ 85°C
安装类型: 表面贴装
封装/外壳: 8-SOIC(0.154",3.90mm 宽)
包装: 带卷 (TR)
供应商设备封装: 8-SOP
AP1538
18V 3A 300KHz BUCK CONVERTER
Electrical Characteristics
(V IN = 12V, T A = 25°C, unless otherwise specified)
Symbol
V FB
I FB
Parameter
Feedback Voltage I OUT = 0.1A
Feedback Bias Current I OUT = 0.1A
Conditions
Min
0.784
-
Typ.
0.8
0.1
Max
0.816
0.5
Unit
V
μA
I SHDN
? V OUT
/ V IN
? V OUT
/ V OUT
f OSC
f OSC1
V IH
V IL
I SH
I SL
I OCSET
Current Consumption During
Power Off
Line Regulation
Load Regulation
Oscillation Frequency
Frequency of Current Limit or
Short Circuit Protection
EN Pin Input Voltage
EN Pin Input Leakage Current
OCSET Pin Bias Current
V EN = 0V
V IN = 5V~18V
I OUT = 0.1 to 3A
Measure waveform at SW pin
Measure waveform at SW pin
Evaluate oscillation at SW pin
Evaluate oscillation stop at SW pin
EN Pin High
EN Pin Low
--
-
-
-
240
-
2.0
-
-
-
75
10
1
0.2
300
50
-
-
20
-10
90
-
2
0.5
400
-
-
0.8
-
-
105
μA
%
%
KHz
KHz
V
μA
μA
μA
R DS(ON) Internal MOSFET R DS(ON)
V IN =5V, V FB =0V
V IN =12V, V FB =0V
-
-
110
70
-
-
m ?
EFFI
T SHDN
T HYS
Efficiency
Thermal shutdown threshold
Thermal shutdown hysteresis
V IN =12V, V OUT = 5V
I OUT =3A
-
-
-
92
150
55
-
-
-
%
°C
°C
θ JC
Thermal Resistance
Junction-to-Case
SOP-8L (Note 5)
SOP-8L-DEP (Note 5)
-
-
24
26
-
-
o
C/W
Notes:
5. Test condition for SOP-8L and SOP-8L-DEP: Devices mounted on 2oz copper, minimum recommended pad layout on top & bottom layer with
thermal vias, double sided FR-4 PCB.
AP1538 Rev. 5
DS31451
5 of 13
OCTOBER 2009
? Diodes Incorporated
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