参数资料
型号: MIC4680-5.0BM TR
厂商: Micrel Inc
文件页数: 3/15页
文件大小: 0K
描述: IC REG BUCK 5V 1A 8SOIC
标准包装: 2,500
系列: SuperSwitcher™
类型: 降压(降压)
输出类型: 固定
输出数: 1
输出电压: 5V
输入电压: 4 V ~ 34 V
PWM 型: 电压模式
频率 - 开关: 200kHz
电流 - 输出: 1A
同步整流器:
工作温度: -40°C ~ 125°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-SOIC
其它名称: MIC4680-5.0BMTR
Micrel, Inc.
Absolute Maximum Ratings (1)
Supply Voltage (V IN ) (3) ..................................................+38V
Shutdown Voltage (V SHDN )............................. –0.3V to +38V
Steady-State Output Switch Voltage (V SW ) .................... –1V
Feedback Voltage [Adjustable] (V FB ) ...........................+12V
Storage Temperature (T s ) ......................... –65°C to +150°C
EDS Rating (5)
MIC4680
Operating Ratings (2)
Supply voltage (V IN ) (4) ....................................... +4V to +34V
Junction Temperature (T J ) ....................................... +125°C
Package Thermal Resistance (6)
SIOC ( θ JA )..........................................................63°C/W
Electrical Characteristics
V IN = 12V; I LOAD = 500mA; T J = 25°C, bold values indicate –40°C ≤ T J ≤ +125°C, Note 7 ; unless noted.
Parameter
Condition
Min
Typ
Max
Units
MIC4680 [Adjustable]
Feedback Voltage
Maximum Duty Cycle
Output Leakage Current
Quiescent Current
(±1%)
(±1%)
8V ≤ V IN ≤ 34V, 0.1A ≤ I LOAD ≤ 1A, V OUT = 5V
V FB = 1.0V
V IN = 34V, V SHDN = 5V, V SW = 0V
V IN = 34V, V SHDN = 5V, V SW = –1V
V FB = 1.5V
1.217
1.205
1.193
1.180
93
1.230
1.230
97
50
4
7
1.243
1.255
1.267
1.280
500
20
12
V
V
V
V
%
μA
mA
mA
MIC4680-3.3
Output Voltage
Maximum Duty Cycle
Output Leakage Current
Quiescent Current
(±1%)
(±3%)
6V ≤ V IN ≤ 34V, 0.1A ≤ I LOAD ≤ 1A
V FB = 2.5V
V IN = 34V, V SHDN = 5V, V SW = 0V
V IN = 34V, V SHDN = 5V, V SW = –1V
V FB = 4.0V
3.266
3.201
3.168
3.135
93
3.3
3.3
97
50
4
7
3.333
3.399
3.432
3.465
500
20
12
V
V
V
V
%
μA
mA
mA
MIC4680-5.0
Output Voltage
Maximum Duty Cycle
Output Leakage Current
Quiescent Current
(±1%)
(±3%)
8V ≤ V IN ≤ 34V, 0.1A ≤ I LOAD ≤ 1A
V FB = 4.0V
V IN = 34V, V SHDN = 5V, V SW = 0V
V IN = 34V, V SHDN = 5V, V SW = –1V
V FB = 6.0V
4.950
4.85
4.800
4.750
93
5.0
5.0
97
50
4
7
5.05
5.15
5.200
5.250
500
20
12
V
V
V
V
%
μA
mA
mA
MIC4680/-3.3/-5.0
Frequency Fold Back
Oscillator Frequency
Saturation Voltage
I OUT = 1A
30
180
50
200
1.4
100
220
1.8
kHz
kHz
V
Short Circuit
Current Limit
Standby Quiescent
Current
V FB = 0V, see Test Circuit
V SHDN = V IN
V SHDN = 5V (regulator off)
1.3
1.8
1.5
30
2.5
100
A
μA
μA
March 2008
3
M9999-032808
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