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| 型号： | 78SR-3.3/2-C |
| 厂商： | Murata Power Solutions Inc |
| 文件页数： | 2/5页 |
| 文件大小： | 0K |
| 描述： | REGULATOR SW SYNC 3.3V 2A SIP |
| 标准包装： | 144 |
| 系列： | 78SR |
| 类型： | 非隔离（POL） |
| 输出数： | 1 |
| 电压 - 输入（最小）： | 8V |
| 电压 - 输入（最大）： | 32V |
| Voltage - Output 1： | 3.3V |
| 电流 - 输出（最大）： | 2A |
| 电源（瓦） - 制造商系列： | 6W |
| 电压 - 隔离： | * |
| 特点： | * |
| 安装类型： | 通孔 |
| 封装/外壳： | 3-SIP 模块 |
| 尺寸/尺寸： | 0.80" L x 0.33" W x 0.85" H（20.3mm x 8.4mm x 21.6mm） |
| 工作温度： | -40°C ~ 70°C |
| 电源（瓦特）- 最大： | 6.6W |
| 产品目录页面： | 2856 (CN2011-ZH PDF) |
| 其它名称： | 811-1118 |
78SR 2 Amp Series
2 Amp, 3.3V & 5V Output, High Ef?ciency,
Synchronous Switching Regulators
Performance/Functional Speci?cations
TECHNICAL NOTES (continued)
Typical at T A = +25°C & V IN = 12V, unless otherwise noted
3. Input-Output Isolation: 78SR regulators’ internal input and output cir-
Input/Output
cuits share a common connection (GND, pin 2), there is no electrical
Models
Output Voltage
Rated Output Current
Output Voltage Accuracy
Input Voltage Range ? ?
Line Regulation (100% load)
Load Regulation (0-100% load)
Quiescent Current (mAdc)
78SR-3.3/2
3.3Vdc
2.0A
±2%
8.0-32Vdc
±0.35%
±0.2%
25 typ., 30 max
78SR-5/2
5.0Vdc
2.0A
±2%
8.0-32Vdc
±0.35%
±0.2%
20 typ., 35max
isolation between their INPUT (pin 1) and OUTPUT (pin 3) terminals.
4. Overvoltage Protection: 78SR switching regulators do not provide
input or output overvoltage protection. In the extremely rare situation
where a catastrophic failure occurs, the output voltage may rise to
excessively high levels. If the load circuit must be protected against
all possible overvoltage situations, voltage-limiting circuitry must be
provided externally.
5. Soldering & Handling Precautions: All units are designed to be hand
Input Current vs. Input Voltage
Ef?ciency
Transient Response
Input & Output Noise
Output Short Circuit Protection ?
Input/Output Isolation
Overvoltage Protection
Undervoltage Protection
Environmental
See Ef?ciency Curves
See Ef?ciency Curves
See Performance Curves
See Performance Curves
Continuous
None
None
None
soldered to pc-boards, using lead-free no-clean solders (+260°C, 5
seconds max.). See the Mechanical Speci?cations section for pin 1
orientation and recommended pc-board hole dimensions.
78SR series regulators have limited built-in ESD protection; therefore
they should always be treated as ESD susceptible devices.
6. Horizontal-Pin Models (78SRH): 78SRH switching regulators are pin-
compatible replacements for TO-220 style LM78xx linear regulators
which are installed with their metal tabs or heat sinks laying ?at on
the surface of the pc-board. In replacement applications, 78SRH units
Models
Operating Temperature
78SR-3.3/2
78SR-5/2
–40 to +70°C
must be soldered to the pc-board such that the insulating body of
diode D1 lies ?at and in contact with the pc-board’s surface.
Storage Temperature
Cooling ③
Humidity (Non-condensing)
Physical
Mechanical
Package
Pins
Weight
Pin Soldering
Absolute Maximum Ratings ?
Input Voltage:
Operating Temperature
Output Current
–40 to +85°C
Free Air Convection
0 to 85%
See Mechanical Speci?cations
Open-frame SIP
0.025” (0.64mm) square,
tin-plated bronze
0.15 ounces (4.2g)
+260°C for 5 seconds
+36Vdc
+85°C
3.0 Amps
? 78SR Series regulators can withstand a continuous short-circuit across their
output terminals. However, extended short-circuit operation will decrease the
unit’s long-term reliability.
? These are stress ratings only; Exposure of devices to any of these conditions
may adversely affect long-term reliability. Proper operation under conditions
other than those listed in the Performance/Functional Speci?cations Table is not
implied.
③ See derating chart for more information.
www.murata-ps.com/dpm
Technical enquiries email: sales@murata-ps.com, tel: +1 508 339 3000
MPM_78SR-2A_B0 2 Page 2 of 5
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| 78SR-5/2-C | 功能描述:DC/DC转换器 8-32Vin 5Vout 2A SIP Switching Reg. RoHS:否 制造商:Murata 产品: 输出功率: 输入电压范围:3.6 V to 5.5 V 输入电压（标称）: 输出端数量:1 输出电压（通道 1）:3.3 V 输出电流（通道 1）:600 mA 输出电压（通道 2）: 输出电流（通道 2）: 安装风格:SMD/SMT 封装 / 箱体尺寸: |
| 78SR50 | 制造商:TT Electronics / BI Technologies 功能描述:Res Cermet Trimmer 50 Ohm 20% 1W 22(Elec)Turn 2.79mm (33.53 X 4.95 X 8.13mm) J-Hook Box |
| 78SR500 | 制造商:TT Electronics / BI Technologies 功能描述:Res Cermet Trimmer 500 Ohm 10% 1W 22(Elec)Turn 2.79mm (33.53 X 4.95 X 8.13mm) J-Hook Box |
| 78SR500K | 制造商:TT Electronics / BI Technologies 功能描述:Res Cermet Trimmer 500K Ohm 10% 1W 22(Elec)Turn 2.79mm (33.53 X 4.95 X 8.13mm) J-Hook Box |
| 78SR500KLF | 制造商:TT Electronics / BI Technologies 功能描述:78SR500KLF |
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