参数资料
| 型号： | MC34268DR2G |
| 厂商： | ON Semiconductor |
| 文件页数： | 2/6页 |
| 文件大小： | 0K |
| 描述： | IC REG LDO 800MA 2.85V 8-SOIC |
| 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： | 8-SOIC（0.154"，3.90mm 宽） |
| 供应商设备封装： | 8-SOICN |
| 包装： | 带卷 (TR) |
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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相关代理商/技术参数 |
参数描述 |
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| MC34268DT | 功能描述:低压差稳压器 - LDO 2.85V 800mA SCSI-6 RoHS:否 制造商:Texas Instruments 最大输入电压:36 V 输出电压:1.4 V to 20.5 V 回动电压（最大值）:307 mV 输出电流:1 A 负载调节:0.3 % 输出端数量: 输出类型:Fixed 最大工作温度:+ 125 C 安装风格:SMD/SMT 封装 / 箱体:VQFN-20 |
| MC34268DTG | 功能描述:低压差稳压器 - LDO 2.85V 800mA SCSI-7 Active Terminator RoHS:否 制造商:Texas Instruments 最大输入电压:36 V 输出电压:1.4 V to 20.5 V 回动电压（最大值）:307 mV 输出电流:1 A 负载调节:0.3 % 输出端数量: 输出类型:Fixed 最大工作温度:+ 125 C 安装风格:SMD/SMT 封装 / 箱体:VQFN-20 |
| MC34268DTRK | 功能描述:低压差稳压器 - LDO 2.85V 800mA SCSI-8 RoHS:否 制造商:Texas Instruments 最大输入电压:36 V 输出电压:1.4 V to 20.5 V 回动电压（最大值）:307 mV 输出电流:1 A 负载调节:0.3 % 输出端数量: 输出类型:Fixed 最大工作温度:+ 125 C 安装风格:SMD/SMT 封装 / 箱体:VQFN-20 |
| MC34268DTRKG | 功能描述:低压差稳压器 - LDO 2.85V 800mA SCSI-9 Active Terminator RoHS:否 制造商:Texas Instruments 最大输入电压:36 V 输出电压:1.4 V to 20.5 V 回动电压（最大值）:307 mV 输出电流:1 A 负载调节:0.3 % 输出端数量: 输出类型:Fixed 最大工作温度:+ 125 C 安装风格:SMD/SMT 封装 / 箱体:VQFN-20 |
| MC34271FB | 制造商:Rochester Electronics LLC 功能描述:- Bulk |
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