The CXSD62112 is a single-phase, constant on-time, synchronous PWM controller, which drives N-channel MOSFETs. The CXSD62112 steps down high voltage to generate low-voltage chipset or RAM supplies in notebook computers. The CXSD62112 provides excellent transient response and accurate DC voltage output in either PFM or PWM Mode. In Pulse Frequency Mode (PFM), the CXSD62112 provides very high efficiency over light to heavy loads with loadingmodulated switching frequencies. In PWM Mode, the converter works nearly at constant frequency for low-noise requirements. CXSD62112 is built in remote sense function for applications that require remote sense. TheCXSD62112 is equipped with accurate positive current limit, output under-voltage, and output over-voltage protections, perfect forNBapplications. ThePowerOn-Reset function monitors the voltage on VCC to prevent wrong operation during power-on. The CXSD62112 has a 1ms digital soft start and built-in an integrated output discharge device for soft stop. An internal integrated soft-start ramps up the output voltage with programmable slew rate to reduce the startup current.
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目录
7.相关产品
产品概述 返回TOP
The CXSD62112 is a single-phase, constant on-time, synchronous PWM controller, which drives N-channel MOSFETs. The CXSD62112 steps down high voltage to generate low-voltage chipset or RAM supplies in notebook computers. The CXSD62112 provides excellent transient response and accurate DC voltage output in either PFM or PWM Mode. In Pulse Frequency Mode (PFM), the CXSD62112 provides very high efficiency over light to heavy loads with loadingmodulated switching frequencies. In PWM Mode, the converter works nearly at constant frequency for low-noise requirements. CXSD62112 is built in remote sense function for applications that require remote sense. TheCXSD62112 is equipped with accurate positive current limit, output under-voltage, and output over-voltage protections, perfect forNBapplications. ThePowerOn-Reset function monitors the voltage on VCC to prevent wrong operation during power-on. The CXSD62112 has a 1ms digital soft start and built-in an integrated output discharge device for soft stop. An internal integrated soft-start ramps up the output voltage with programmable slew rate to reduce the startup current.Asoft-stop function actively discharges the output capacitors. The CXSD62112is available in 10pin TDFN 3x3 package respectively.
产品特点 返回TOP
· Adjustable Output Voltage from +0.5V to +3.3V
- 0.5V Reference Voltage
- +0.6% Accuracy
· Operates from An Input Battery Voltage Range of +1.8V to +28V
· Remote Feedback Sense for Excellent Output Voltage
· REFIN Function for Over-clocking Purpose from 0.5V~2.5V range
· Power-On-Reset Monitoring on VCC Pin
· Excellent line and load transient responses
· PFM mode for increased light load efficiency
· 350kHz Constant PWM Switching Frequency
· Integrated MOSFET Drivers
· Integrated Bootstrap Forward P-CH MOSFET
· Adjustable Integrated Soft-Start and Soft-Stop
· Power Good Monitoring
· 70% Under-Voltage Protection
· 125% Over-Voltage Protection
· Adjustable Current-limit protection
-Using Sense Low-Side MOSFET?|s RDS(ON)
· Over-Temperature Protection
· TDFN-10 3x3 package
· Lead Free and Green Device Available (RoHS Compliant)
应用范围 返回TOP
· Notebook
· Table PC
· Hand-Held Portable
· AIO PC
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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Switching Regulator > Buck Controller |
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Part_No |
Package |
Topology |
Archi tectu |
Phase |
No.of PWM Output |
Output Current (A) |
Input Voltage (V) |
Reference Voltage (V) |
Bias Voltage (V) |
Quiescent Current (uA) |
|
|
min |
max |
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|
SOP-14|QSOP-16 QFN4x4-16 |
Buck |
VM |
1 |
1 |
30 |
2.9 |
13.2 |
0.9 |
12 |
8000 |
|
|
SOP-8 |
Buck |
VM |
1 |
1 |
20 |
2.9 |
13.2 |
0.8 |
12 |
5000 |
|
|
SOP-8 |
Buck |
VM |
1 |
1 |
20 |
2.9 |
13.2 |
0.8 |
12 |
5000 |
|
|
QFN4x4-24 |
Multiphase |
VM |
2 |
1 |
60 |
3.1 |
13.2 |
0.6 |
12 |
5000 |
|
|
SOP-8 |
Buck |
VM |
1 |
1 |
20 |
2.2 |
13.2 |
0.8 |
5~12 |
2100 |
|
|
SOP-8 |
Buck |
VM |
1 |
1 |
20 |
2.2 |
13.2 |
0.8 |
5~12 |
2100 |
|
|
SOP8|TSSOP8 |
Buck |
VM |
1 |
1 |
5 |
5 |
13.2 |
1.25|0.8 |
5~12 |
3000 |
|
|
SOP-8 |
Buck |
VM |
1 |
1 |
10 |
3.3 |
5.5 |
0.8 |
5 |
2100 |
|
|
SOP-14 |
Buck |
VM |
1 |
1 |
10 |
5 |
13.2 |
0.8 |
12 |
2000 |
|
|
TSSOP-24 |QFN5x5-32 |
Buck |
VM |
1 |
2 |
20 |
5 |
13.2 |
0.6 |
5~12 |
4000 |
|
|
SOP14|QSOP16 |QFN-16 |
Buck |
VM |
1 |
1 |
30 |
2.9 |
13.2 |
0.9 |
12 |
4000 |
|
|
SOP-14 |
Buck |
VM |
1 |
1 |
30 |
2.2 |
13.2 |
0.6 |
12 |
5000 |
|
|
SOP-14 |
Buck |
VM |
1 |
1 |
30 |
2.2 |
13.2 |
0.6 |
12 |
5000 |
|
|
SOP-14 |
Buck |
VM |
1 |
1 |
25 |
2.2 |
13.2 |
0.8 |
12 |
5000 |
|
|
LQFP7x7 48 |TQFN7x7-48 |
Buck|Boost |Flyback |
VM |
1 |
6 |
0.015 |
1.4 |
6.5 |
- |
5 |
1800 |
|
|
TSSOP-24P |
Buck |
VM |
1 |
2 |
20 |
2.97 |
5.5 |
0.8 |
5~12 |
5000 |
|
|
SOP-14 |
Buck |
VM |
1 |
1 |
10 |
5 |
13.2 |
0.8 |
12 |
3000 |
|
|
SOP-8-P|DIP-8 |
Buck |
VM |
1 |
1 |
30 |
2.9 |
13.2 |
1.2 |
12 |
3000 |
|
|
SSOP28 QFN4x4-24 |
Buck |
VM |
1 |
2 |
20 |
5 |
24 |
0.9 |
5 |
1200 |
|
|
SOP-20 |
Buck |
VM |
1 |
2 |
20 |
2.2 |
13.2 |
0.6 |
5~12 |
4000 |
|
|
SOP8|DFN3x3-10 |
VM |
1 |
2 |
- |
- |
- |
- |
5~12 |
550 |
||
|
DIP8|SOP-8 |
Buck|Boost |Flyback |Forward |
VM |
1 |
1 |
1 |
1.2 |
9 |
24 |
5 |
9 ~ 24 |
|
|
SSOP16|QFN4x4-16 |TQFN3x3-16 |
Buck |
VM |
1 |
1 |
25 |
3 |
25 |
0.6 |
5 |
1700 |
|
|
TDFN3x3-10 |
Buck |
COT |
1 |
1 |
25 |
3 |
25 |
0.5 |
5 |
350 |
|
|
QFN4x4-24 |
Buck |
CM |
2 |
1 |
40 |
4.5 |
13.2 |
0.6 |
5~12 |
4000 |
|
|
SOP8P|TDFN3x3-10 |
Buck |
VM |
1 |
1 |
20 |
3 |
13.2 |
0.8 |
5~12 |
2500 |
|
|
SOP8P |
Buck |
VM |
1 |
1 |
25 |
3 |
13.2 |
0.6|0.8 |
5~12 |
1200 |
|
|
TDFN3x3-10 |
Buck |
VM |
1 |
1 |
25 |
4 |
13.2 |
0.8 |
5~12 |
2000 |
|
|
TDFN3x3-10 |
Buck |
COT |
1 |
1 |
25 |
4.5 |
25 |
0.6 |
5~12 |
80 |
|
|
SOP-8P |
Buck |
VM |
1 |
1 |
25 |
4.5 |
13.2 |
0.8 |
5~12 |
16000 |
|
|
TQFN3x3-10 |
Buck |
VM |
1 |
1 |
25 |
4.5 |
13.2 |
0.6 |
5~12 |
2500 |
|
|
TDFN3x3-10 |
Buck |
COT |
1 |
1 |
30 |
3 |
25 |
0.8 |
5~12 |
2000 |
|
|
TQFN3x3-16 |
Buck |
COT |
1 |
1 |
30 |
1.8 |
28 |
0.6 |
5 |
600 |
|
|
TQFN 3x3 16 |
Buck |
COT |
1 |
1 |
30 |
1.8 |
28 |
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