参数资料
| 型号： | MC34268DTRK |
| 厂商： | ON Semiconductor |
| 文件页数： | 2/6页 |
| 文件大小： | 0K |
| 描述： | IC REG LDO 800MA 2.85V DPAK-3 |
| 产品变化通告： | Product Discontinuation 27/Jun/2007 Product Obsolescence 11/Feb/2009 |
| 标准包装： | 2,500 |
| 应用： | 转换器，SCSI-2 |
| 输入电压： | 15V |
| 输出数： | 1 |
| 输出电压： | 2.85V |
| 工作温度： | 0°C ~ 125°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | TO-252-3，DPak（2 引线+接片），SC-63 |
| 供应商设备封装： | DPAK-3 |
| 包装： | 带卷 (TR) |
| 其它名称： | MC34268DTRKOS |
MC34268
MAXIMUM RATINGS
Power Supply Input Voltage
Rating
Symbol
V in
Value
15
Unit
V
Power Dissipation and Thermal Characteristics
DT Suffix, Plastic Package, Case 369A
T A = 25 ° C, Derate Above T A = 25 ° C
Thermal Resistance, Junction ? to ? Case
Thermal Resistance, Junction ? to ? Air
D Suffix, Plastic Package, Case 751
T A = 25 ° C, Derate Above T A = 25 ° C
Thermal Resistance, Junction ? to ? Case
Thermal Resistance, Junction ? to ? Air
ST Suffix, Plastic Package, Case 318E
T A = 25 ° C, Derate Above T A = 25 ° C
Thermal Resistance, Junction ? to ? Case
Thermal Resistance, Junction ? to ? Air
Operating Ambient Temperature Range
Maximum Die Junction Temperature
Storage Temperature
P D
R q JC
R q JA
P D
R q JC
R q JA
P D
R q JC
R q JA
T A
T J
T stg
Internally Limited
5.0
87
Internally Limited
22
140
Internally Limited
15
245
0 to +125
+150
? 55 to +150
W
° C/W
° C/W
W
° C/W
° C/W
W
° C/W
° C/W
° C
° C
° C
Maximum ratings are those values beyond which device damage can occur. Maximum ratings applied to the device are individual stress limit values
(not normal operating conditions) and are not valid simultaneously. If these limits are exceeded, device functional operation is not implied, damage
may occur and reliability may be affected.
ELECTRICAL CHARACTERISTICS
(V in = 4.25 V, C O = 10 m F, for typical values T A = 25 ° C, for min/max values T A = 0 ° C t o +125 ° C, unless otherwise noted.)
Characteristic
Output Voltage (T A = 25 ° C, I O = 0 mA)
Output Voltage, over Line, Load, and Temperature (V in = 3.9 V to 15 V,
I O = 0 mA to 490 mA)
Line Regulation (V in = 4.25 V to 15 V, I O = 0 mA, T A = 25 ° C)
Load Regulation (I O = 0 mA to 800 mA, T A = 25 ° C)
Dropout Voltage (I O = 490 mA)
Ripple Rejection (f = 120 Hz)
Maximum Output Current (V in = 5.0 V)
Bias Current (V in = 4.25 V, I O = 0 mA)
Minimum Load Current to maintain Regulation (V in = 15 V)
Symbol
V O
Reg line
Reg load
V in ? V O
RR
I (max)
I B
I L(min)
Min
2.81
2.76
?
?
?
55
800
?
?
Typ
2.85
2.85
?
?
0.95
?
?
5.0 to 3.0
?
Max
2.89
2.93
0.3
0.5
1.1
?
?
8.0
0
Unit
V
%
%
V
dB
mA
mA
mA
1.5
T J = 25 ° C
1.3
1.1
0.9
0.7
V in = 5.0 V
C O = 10 m F
T A = 25 ° C
0.5
0
200
400
600
800
1000
20 ms/DIV
I O , OUTPUT LOAD CURRENT (mA)
Figure 1. Dropout Voltage versus
Output Load Current
http://onsemi.com
2
Figure 2. Transient Load Regulation
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