参数资料
| 型号： | CS5203A-1GT3 |
| 厂商： | ON Semiconductor |
| 文件页数： | 6/10页 |
| 文件大小： | 0K |
| 描述： | IC REG LDO ADJ 3A TO220AB |
| 产品变化通告： | Product Obsolescence 01/Apr/2004 |
| 标准包装： | 50 |
| 稳压器拓扑结构： | 正，可调式 |
| 输出电压： | 1.25 V ~ 13 V |
| 输入电压： | 最高 17V |
| 电压 - 压降（标准）： | 1.05V @ 3A |
| 稳压器数量： | 1 |
| 电流 - 输出： | 3A |
| 电流 - 限制（最小）： | 3.2A |
| 工作温度： | 0°C ~ 70°C |
| 安装类型： | 通孔 |
| 封装/外壳： | TO-220-3 |
| 供应商设备封装： | TO-220AB |
| 包装： | 管件 |
| 其它名称： | CS5203A-1GT3OS |
CS5203A?1, CS5203A?2, CS5203A?3, CS5203A?5
The ESR of the output capacitor causes an immediate drop
in output voltage given by:
Output Voltage Sensing
Since the CS5203A is a three terminal regulator, it is not
D V + D I
ESR
possible to provide true remote load sensing. Load
regulation is limited by the resistance of the conductors
For microprocessor applications it is customary to use an
output capacitor network consisting of several tantalum and
ceramic capacitors in parallel. This reduces the overall ESR
and reduces the instantaneous output voltage drop under
connecting the regulator to the load. For best results the
fixed regulators should be connected as shown in Figure 13.
Conductor Parasitic
load transient conditions. The output capacitor network
should be as close as possible to the load for the best results.
V IN
V IN
V OUT
R C
Resistance
Protection Diodes
When large external capacitors are used with a linear
regulator it is sometimes necessary to add protection diodes.
If the input voltage of the regulator gets shorted, the output
capacitor will discharge into the output of the regulator. The
discharge current depends on the value of the capacitor, the
CS5203A?X
GND
R LOAD
output voltage and the rate at which V IN drops. In the
CS5203A?X family of linear regulators, the discharge path
is through a large junction and protection diodes are not
usually needed. If the regulator is used with large values of
output capacitance and the input voltage is instantaneously
shorted to ground, damage can occur. In this case, a diode
connected as shown in Figures 11 and 12 is recommended.
Figure 13. Conductor Parasitic Resistance can be
Minimized with the Above Grounding Scheme for
Fixed Output Regulators
For the adjustable regulator, the best load regulation
occurs when R1 is connected directly to the output pin of the
regulator as shown in Figure 14. If R1 is connected to the
load, R C is multiplied by the divider ratio and the effective
resistance between the regulator and the load becomes
V IN
V IN
IN4002 (optional)
V OUT
V OUT
RC
R1 ) R2
R1
C 1
CS5203A?1
Adj
R 1
C 2
where R C = conductor parasitic resistance.
Conductor Parasitic
C Adj
R 2
V IN
V IN V OUT
CS5203A?1
R C
Resistance
Adj
R 1
R LOAD
Figure 11. Protection Diode Scheme for Adjustable
Output Regulator
R 2
IN4002 (optional)
V IN
V IN
V OUT
V OUT
CS5203A?X
C 1
GND
C 2
Figure 14. Grounding Scheme for Adjustable Output
Regulator to Minimize Parasitics
Figure 12. Protection Diode Scheme for Fixed Output
Regulators
http://onsemi.com
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相关代理商/技术参数 |
参数描述 |
|---|---|
| CS-5203A-1T3 | 制造商:未知厂家 制造商全称:未知厂家 功能描述:Positive Adjustable Voltage Regulator |
| CS5203A-2 | 制造商:ONSEMI 制造商全称:ON Semiconductor 功能描述:3.0 A Adjustable, and Fixed 1.5 V, 3.3 V and 5.0 V Linear Regulators |
| CS-5203A-2DP3 | 制造商:未知厂家 制造商全称:未知厂家 功能描述:Positive Fixed Voltage Regulator |
| CS5203A-2GDP3 | 制造商:Rochester Electronics LLC 功能描述:- Bulk |
| CS5203A-2GDPR3 | 功能描述:IC REG LDO 1.5V 3A D2PAK-3 RoHS:否 类别:集成电路 (IC) >> PMIC - 稳压器 - 线性 系列:- 标准包装:3,000 系列:- 稳压器拓扑结构:正，固定式和可调式 输出电压:3.3V，1.25 V ~ 5.7 V 输入电压:4.5 V ~ 7 V 电压 - 压降（标准）:1.1V @ 1A 稳压器数量:2 电流 - 输出:1A 电流 - 限制（最小）:1A 工作温度:0°C ~ 125°C 安装类型:表面贴装 封装/外壳:TO-252-5，DPak（4 引线 + 接片），TO-252AD 供应商设备封装:PPAK 包装:管件 其它名称:497-3576-5 |
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