中文
English3A输出电流超低衰减线性稳压器CXLD64137上电复位POR电路监测两个电源电压EN引脚低于0.3V将关闭输出
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产品概述 返回TOP
The CXLD64137 is a 3A ultra low dropout linear regulator. This product is specifically designed to provide well supply volatage for front-side-bus termination on motherboards and NB applications. The IC needs two supply voltages, a control voltage for the circuitry and a main supply voltage for power conversion, to reduce power dissipation and provide extremely low dropout. The CXLD64137 integrates many functions. A Power-On-Reset (POR) circuit monitors both supply voltages to prevent wrong operations. A thermal shutdown and current limit functions protect the device against thermal and current over-loads. A POK indicates the output status with time delay which is set internally. It can control other converter for power sequence. The CXLD64137 is enabled by other power system. Pulling and holding the EN pin below 0.3V shuts off the output. The CXLD64137 is available in SOP-8P package which features small size as SOP-8 and an Exposed Pad to reduce the junction-to-case resistance, being applicable in 2~2.4W applications.
产品特点 返回TOP
· Ultra Low Dropout - 0.25V(typical) at 3A Output Current
· Low ESR Output Capacitor (Multi-layer Chip Capacitors (MLCC)) Applicable
· 0.8V Reference Voltage
· High Output Accuracy - ±1.5% over Line, Load and Temperature
· Fast Transient Response
· Adjustable Output Voltage by External Resistors
· Power-On-Reset Monitoring on Both VCNTL and VIN Pins
· Internal Soft-Start
· Current-Limit Protection
· Under-Voltage Protection
· Thermal Shutdown with Hysteresis
· Power-OK Output with a Delay Time
· Shutdown for Standby or Suspend Mode
· Simple SOP-8P Package with Exposed Pad
· Lead Free and Green Devices Available (RoHS Compliant)
应用范围 返回TOP
· Front Side Bus VTT (1.2V/3A)
· Note Book PC Applications
· Motherboard Applications
技术规格书（产品PDF) 返回TOP
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产品封装图 返回TOP
电路原理图 返回TOP
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Linear Regulator > Single Output LDO Regulator |
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|
Part_No |
Package |
Input Voltag (V) |
VCNTL Voltage (V) |
Quies. Curre. (uA) |
Ref. Volta. (V) |
Fixed Output Voltage (V) |
Out. Curr. (max) (A) |
Dro. Volt. (V) |
EN |
POK |
High PSRR |
Low Noise |
||
|
min |
max |
min |
max |
|||||||||||
|
TO220/TO252/TO263 |
2.75 |
7 |
N |
N |
8000 |
1.25 |
3.3 |
5 |
1.3 |
N |
N |
N |
N |
|
|
TO220/TO252/TO263 |
1.75 |
7 |
N |
N |
8000 |
1.25 |
3.3 |
3 |
1.3 |
N |
N |
N |
N |
|
|
SOT223/TO252/TO220 |
2.75 |
12 |
N |
N |
5500 |
1.25 |
1.8/2.5/2.85 /3.3 |
1.5 |
1.3 |
N |
N |
N |
N |
|
|
SOT89/TO92 SOT223/TO252 |
3.1 |
9 |
N |
N |
5500 |
1.25 |
1.8/2.5/3.3 |
0.8 |
1.3 |
N |
N |
N |
N |
|
|
SOT89/TO92 |
3.1 |
9 |
N |
N |
5500 |
1.25 |
1.8/2.5/3.3 |
0.8 |
1.3 |
N |
N |
N |
N |
|
|
SOT89/TO92 |
2.95 |
9 |
N |
N |
5500 |
1.25 |
N |
0.5 |
1.3 |
N |
N |
N |
N |
|
|
SOT223 |
2.9 |
9 |
N |
N |
5500 |
N |
1.2 |
0.6 |
1.4 |
N |
N |
N |
N |
|
|
SOP-8 |
2.75 |
12 |
N |
N |
5500 |
1.25 |
3.3 |
1 |
1.1 |
N |
N |
N |
N |
|
|
SOP-8 |
3 |
6 |
N |
N |
50 |
N |
2.5 |
1 |
0.21 |
N |
N |
Y |
N |
|
|
TO220-5/TO263-5 TO252-5/SOP8P |
2.05 |
5.5 |
2.75 |
5.5 |
8000 |
1.25 |
1.5/1.8/2.5 |
5 |
0.52 |
N |
N |
Y |
N |
|
|
TO220-5/TO263-5 TO252-5 |
2.05 |
5.5 |
2.75 |
12 |
8000 |
1.25 |
N |
3 |
0.45 |
N |
N |
Y |
N |
|
|
SOT-23-5/SOT-23-3 SOT-89 |
2 |
6 |
N |
N |
4 |
N |
1.2~ 3.5 |
0.15 |
0.2 |
Y |
N |
N |
N |
|
|
SOT23-5 |
2.7 |
6 |
N |
N |
50 |
N |
1.3 ~ 5.0 |
0.15 |
0.3 |
Y |
N |
N |
N |
|
|
SOT23-5/SOT89/SOP8 |
5.4 |
25 |
N |
N |
15 |
1.24 |
3.3/5 |
0.15 |
0.75 |
Y |
N |
N |
N |
|
|
SOT23-5/SOT89 SOP8P |
6.5 |
25 |
N |
N |
70 |
1.24 |
3.3/5 |
0.15 |
1.9 |
T |
N |
N |
N |
|
|
SOT25 |
2.7 |
6 |
N |
N |
60 |
N |
1.2 |
0.15 |
1.5 |
Y |
Y |
N |
N |
|
|
SOT23/SOT89 |
2.7 |
6 |
N |
N |
50 |
N |
1.3~ 3.4/5 |
0.3 |
0.4 |
Y |
N |
N |
N |
|
|
SOT23/SOT25/SOT89 |
2.7 |
6 |
N |
N |
60 |
N |
1.5~ 4.5 |
0.3 |
0.4 |
N |
N |
N |
N |
|
|
SOT25 |
2.8 |
6 |
N |
N |
135 |
0.8 |
1.2,1.5,1.8, 2.5,3.3 |
0.3 |
0.23 |
Y |
N |
N |
N |
|
|
SOT25 |
2.8 |
6 |
N |
N |
135 |
N |
1.2/3.3 |
0.3 |
0.17 |
Y |
Y |
N |
N |
|
|
SOT25 |
2.8 |
6 |
N |
N |
135 |
0.8 |
1.2 |
0.3 |
0.23 |
Y |
N |
N |
N |
|
|
SOT23/SOT25/TSOT25 SC70-5/VTDFN1.2x1.6 -4/TDFN1.6x1.6-6 |
2.5 |
6 |
N |
N |
40 |
N |
1.2~3.7 |
0.3 |
0.52 |
Y |
N |
Y |
N |
|
|
SOT25 |
3 |
6 |
N |
N |
135 |
1.25 |
N |
0.3 |
0.5 |
Y |
N |
N |
N |
|
|
SOT25 |
2.7 |
6 |
N |
N |
135 |
0.8 |
N |
0.3 |
0.5 |
Y |
N |
N |
N |
|
|
SOT25 |
3 |
6 |
N |
N |
135 |
1.2 |
N |
0.3 |
0.5 |
Y |
N |
N |
N |
|
|
SOP-8P |
1.2 |
3.5 |
3 |
6 |
2000 |
N |
0.8~3 |
2 |
0.47 |
Y |
N |
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