CXSD62497是一款高效的1.0兆赫同步降压DC/DC稳压器，能够提供高达3A的输出电流。CXSD62497可以在2.7V到5.5V的宽输入电压范围内工作，并将主开关和同步开关与极低的RD（开）集成在一起，以最大限度地降低传导损耗。
开关频率为1.0MHz，输出电压纹波小，外部电感小，电容器尺寸小
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[ CXSD62497 ]
目录
7.相关产品
产品概述 返回TOP
CXSD62497 is a high efficient 1.0MHz synchronous step down DC/DC regulator capable of delivering up to 3A output current. The CXSD62497 can operate over a wide input voltage range from 2.7V to 5.5V and integrates main switch and synchronous switch with very low RDS(ON) to minimize the conduction loss.
The low output voltage ripple, the small external inductor and the capacitor sizes are achieved with 1.0MHz switching frequency.
产品特点 返回TOP
· Low RDS(ON) for Internal Switches (Top/Bottom) 85mΩ /50mΩ
· 2.7~5.5V Input Voltage Range
· 55μA Low Quiescent Current
· Ultra Fast Load Transient Speed
· High Switching Frequency 1.0MHz Minimizes the External Components
· Internal Soft-start Limits the Inrush Current
· Reliable Short Circuit Protection
· Output Auto Discharge Function
· RoHS Compliant and Halogen Free
· Compact Package: QFN1.5×1.5-7
应用范围 返回TOP
· Smart Phone
· LCD TV
· Set Top Box
· Mini-Notebook PC
· Access Point Router
技术规格书（产品PDF) 返回TOP
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产品封装图 返回TOP
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电路原理图 返回TOP
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Single Output Step Down Regulator (Integrated Switch) |
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|
Number |
Vin (min) (V) |
Vin (max) V |
UVLO (V) |
Iout (max) (A) |
Vout (min) (V) |
Out. Voltage Acurracy |
Quiescent Current Typ (uA) |
Shutdown Current (uA) |
(Ron H) (mΩ) |
(Ron L) (mΩ) |
|
2.5 |
5.5 |
2.5 |
3.5 |
0.6 |
±1.5% |
18 |
0.1 |
55 |
35 |
|
|
2.5 |
5.5 |
2.5 |
1 |
0.6 |
±2% |
40 |
0.1 |
260 |
170 |
|
|
CXSD62480A |
2.5 |
5.5 |
2.4 |
1.2 |
0.6 |
±1.5% |
50 |
0.1 |
200 |
150 |
|
CXSD62480B |
2.5 |
5.5 |
2.4 |
0.6 |
0.6 |
±1.5% |
50 |
0.1 |
300 |
200 |
|
2.5 |
5.5 |
2.5 |
1 |
0.6 |
±1.5% |
50 |
0.1 |
200 |
150 |
|
|
CXSD62481A |
2.5 |
5.5 |
2.5 |
1 |
0.6 |
±1.5% |
50 |
0.1 |
200 |
150 |
|
CXSD62481B |
2.5 |
5.5 |
2.5 |
1 |
3.3 |
±1.5% |
50 |
0.1 |
200 |
150 |
|
CXSD62481H |
2.5 |
5.5 |
2.5 |
1.5 |
0.6 |
±1.5% |
50 |
0.1 |
180 |
120 |
|
CXSD62481V |
2.5 |
5.5 |
2.5 |
1.5 |
0.6 |
±1.5% |
50 |
0.1 |
180 |
120 |
|
2.5 |
5.5 |
2.5 |
1 |
0.6 |
±2% |
40 |
0.1 |
230 |
150 |
|
|
2.5 |
5.5 |
2.5 |
1 |
0.6 |
±2% |
60 |
0.1 |
260 |
170 |
|
|
CXSD62483A |
2.5 |
5.5 |
2.5 |
1 |
0.6 |
±2% |
60 |
0.1 |
260 |
170 |
|
CXSD62483C |
2.5 |
5.5 |
2.5 |
1 |
0.6 |
±2% |
60 |
0.1 |
260 |
170 |
|
2.5 |
5.5 |
2.5 |
1.5 |
0.6 |
±2% |
90 |
0.1 |
180 |
120 |
|
|
CXSD62484L |
2.5 |
5.5 |
2.5 |
1 |
0.6 |
±2% |
90 |
0.1 |
250 |
200 |
|
2.5 |
5.5 |
2.5 |
1 |
0.6 |
±2% |
40 |
0.1 |
260 |
170 |
|
|
2.5 |
6.5 |
2.5 |
1 |
0.6 |
±2% |
40 |
0.1 |
260 |
170 |
|
|
2.5 |
6.5 |
2.5 |
1 |
0.6 |
±2% |
40 |
0.1 |
260 |
170 |
|
|
2.5 |
5.5 |
2.5 |
1 |
0.6 |
±2% |
40 |
0.1 |
270 |
160 |
|
|
2.5 |
5.5 |
2.5 |
1 |
0.6 |
±2% |
40 |
0.1 |
230 |
150 |
|
|
2.7 |
5.5 |
2.5 |
3 |
0.6 |
±2% |
55 |
0.1 |
110 |
80 |
|
|
CXSD62490A |
2.7 |
5.5 |
2.5 |
3 |
0.6 |
±2% |
55 |
0.1 |
110 |
80 |
|
CXSD62490B |
2.7 |
5.5 |
2.65 |
3 |
0.6 |
±2% |
55 |
0.1 |
100 |
80 |
|
CXSD62490E |
2.7 |
5.5 |
2.65 |
3 |
0.6 |
±2% |
55 |
0.1 |
110 |
80 |
|
CXSD62491B |
2.5 |
5.5 |
2.5 |
1.5 |
0.6 |
±2% |
60 |
0.1 |
210 |
130 |
|
CXSD62491E |
2.7 |
5.5 |
2.65 |
2 |
0.6 |
±2% |
55 |
0.1 |
110 |
80 |
|
CXSD62492L |
2.7 |
5.5 |
2.65 |
2 |
0.6 |
±2% |
55 |
0.1 |
120 |
90 |
|
2.7 |
5.5 |
2.65 |
2 |
0.6 |
±2% |
55 |
0.1 |
110 |
80 |
|
|
CXSD62493A |
2.7 |
5.5 |
2.65 |
2 |
0.6 |
±2% |
55 |
0.1 |
110 |
80 |
|
CXSD62493B |
2.7 |
5.5 |
2.65 |
2 |
0.6 |
±2% |
55 |
0.1 |
110 |
80 |
|
2.7 |
6.5 |
2.65 |
2 |
0.6 |
±2% |
55 |
0.1 |
125 |
95 |
|
|
CXSD62494P |
2.7 |
6.5 |
2.65 |
2 |
0.6 |
±2% |
55 |
0.1 |
125 |
95 |
|
2.7 |
5.5 |
2.7 |
2.5 |
0.6 |
±2% |
80 |
0.1 |
100 |
80 |
|
|
CXSD62495E |
2.7 |
5.5 |
2.7 |
2.5 |
0.6 |
±2% |
80 |
0.1 |
100 |
80 |
|
2.7 |
5.5 |
1.8 |
3 |
0.6 |
±1% |
55 |
0.1 |
85 |
50 |
|
|
2.5 |
5.5 |
2.5 |
3 |
0.8 |
±1.5% |
18 |
0.1 |
75 |
55 |
|
|
2.5 |
5.5 |
2.5 |
3 |
0.6 |
±1.5% |
18 |
0.1 |
75 |
55 |
|
|
2.5 |
5.5 |
2.5 |
0.45 |
0.6 |
±2% |
1.5 |
0.1 |
400 |
200 |
|
|
1.85 |
5.5 |
1.85 |
0.6 |
0.4 |
±2% |
40 |
0.1 |
350 |
250 |
|
|
2.5 |
5.5 |
2.5 |
4 |
0.6 |
±1.5% |
18 |
0.1 |
75 |
55 |
|
|
2.7 |
5.5 |
2.7 |
5 |
0.6 |
±1.5% |
150 |
0.1 |
45 |
35 |
|
|
2.7 |
5.5 |
2.7 |
4 |
0.6 |
±1.5% |
60 |
0.1 |
35 |
15 |
|
|
2.5 |
5.5 |
2.5 |
4 |
0.7 |
±1% |
30 |
0.1 |
70 |
40 |
|
|
2.7 |
5.5 |
6 |
0.6 |
±1.5% |
150 |
0.1 |
40 |
30 |
||
|
3 |
5.5 |
2.8 |
5 |
0.6 |
±1.5% |
100 |
0.1 |
35 |
15 |
|
|
3 |
5.5 |
2.9 |
6 |
0.6 |
±1.5% |
100 |
0.1 |
35 |
15 |
|
|
2.75 |
6 |
2.7 |
6 |
0.6 |
±1.5% |
60 |
0.1 |
35 |
15 |
|
|
2.5 |
5.5 |
2.5 |
5 |
0.6 |
±1.5% |
18 |
0.1 |
55 |
35 |
|
|
2.7 |
6.5 |
2.7 |
6 |
0.6 |
±1.5% |
60 |
0.1 |
38 |
15 |
|
|
2.6 |
5.5 |
2.6 |
6 |
0.7125 |
±1.5% |
75 |
0.1 |
28 |
17 |
|
|
2.7 |
5.5 |
2.65 |
6 |
0.6 |
±1% |
50 |
0.1 |
35 |
15 |
|
|
2.5 |
5.5 |
2.5 |
0.6 |
0.6 |
±2% |
40 |
0.1 |
230 |
150 |
|
|
CXSD62514A |
2.5 |
5.5 |
2.5 |
0.6 |
1.2 |
±2% |
40 |
0.1 |
230 |
150 |
|
CXSD62514B |
2.5 |
5.5 |
2.5 |
0.6 |
1.5 |
±2% |
40 |
0.1 |
230 |
150 |
|
CXSD62514C |
2.5 |
5.5 |
2.5 |
0.6 |
1.8 |
±2% |
40 |
0.1 |
230 |
150 |
|
CXSD62514D |
2.5 |
5.5 |
2.5 |
0.6 |
2.5 |
±2% |
40 |
0.1 |
230 |
150 |
|
CXSD62514E |
2.5 |
5.5 |
2.5 |
0.6 |
3.3 |
±2% |
40 |
0.1 |
230 |
150 |
|
CXSD62514F |
2.5 |
5.5 |
2.5 |
0.6 |
1 |
±2% |
40 |
0.1 |
230 |
150 |
|
2.5 |
5.5 |
2.5 |
1.2 |
0.6 |
±2% |
40 |
0.1 |
230 |
150 |
|
|
2.75 |
5.5 |
2.75 |
2 |
0.6 |
±1.5% |
68 |
0.1 |
40 |
20 |
|
|
2.75 |
5.5 |
2.75 |
3 |
0.6 |
±1.5% |
68 |
0.1 |
35 |
15 |
|
|
2.7 |
5.5 |
2.7 |
4 |
0.6 |
±1.5% |
60 |
0.1 |
35 |
15 |
|
|
4.5 |
23 |
2.4 |
2 |
0.6 |
±1.5% |
100 |
5 |
105 |
50 |
|
|
4.5 |
18 |
4.5 |
5 |
0.6 |
±1% |
500 |
10 |
50 |
15 |
|
|
5 |
40 |
4.5 |
0.3 |
0.6 |
±2.0% |
160 |
5 |
2000 |
||
|
6 |
24 |
4.5 |
0.6 |
0.6 |
±2% |
400 |
5 |
420 |
200 |
|
|
4.5 |
55 |
4.5 |
0.8 |
0.6 |
±1% |
150 |
5 |
700 |
||
|
4.5 |
27 |
4.5 |
1 |
0.6 |
±2% |
400 |
5 |
350 |
150 |
|
|
CXSD62524C |
4.5 |
27 |
4.5 |
1 |
0.6 |
±2% |
400 |
5 |
350 |
150 |
|
7 |
100 |
6.5 |
1 |
1.2 |
±2.0% |
400 |
5 |
500 |
240 |
|
|
7 |
85 |
6.8 |
1.2 |
1.2 |
±2.0% |
400 |
8 |
500 |
240 |
|
|
5 |
40 |
4.5 |
1.2 |
0.6 |
±2.0% |
160 |
5 |
180 |
180 |
|
|
4.5 |
18 |
4.45 |
2 |
0.6 |
±2% |
400 |
5 |
130 |
120 |
|
|
4.5 |
18 |
4.5 |
2 |
0.6 |
±2% |
400 |
5 |
140 |
130 |
|
|
CXSD62529C |
4.5 |
18 |
4.5 |
2 |
0.81 |
±2% |
400 |
5 |
130 |
120 |
|
4.5 |
23 |
4.5 |
2 |
0.6 |
±1.5% |
100 |
5 |
130 |
60 |
|
|
4.5 |
23 |
4.5 |
2 |
0.6 |
±1.5% |
400 |
10 |
150 |
110 |
|
|
4.5 |
23 |
4.5 |
2 |
0.6 |
±1.5% |
400 |
10 |
150 |
110 |
|
|
5 |
40 |
4.5 |
2 |
0.6 |
±2.0% |
160 |
10 |
180 |
||
|
CXSD62534A |
4.5 |
18 |
4.5 |
3 |
0.6 |
±1.5% |
100 |
5 |
80 |
40 |
|
CXSD62534B |
4.5 |
18 |
4.5 |
3 |
0.6 |
±1.5% |
100 |
5 |
80 |
40 |
|
CXSD62534C |
4.5 |
18 |
4.5 |
3 |
0.6 |
±1.5% |
100 |
5 |
80 |
40 |
|
CXSD62534D |
4.5 |
18 |
4.5 |
3 |
0.6 |
±1.5% |
100 |
5 |
80 |
40 |
|
4.5 |
23 |
4.5 |
3 |
0.6 |
±1.5% |
400 |
10 |
120 |
85 |
|
|
4.5 |
23 |
4.5 |
3 |
0.6 |
±1.5% |
400 |
10 |
120 |
85 |
|
|
4.5 |
23 |
4.5 |
3 |
0.6 |
±1.5% |
100 |
5 |
105 |
50 |
|
|
4.5 |
23 |
4.5 |
3 |
0.6 |
±1.5% |
400 |
10 |
130 |
90 |
|
|
4.5 |
30 |
4 |
3 |
0.6 |
±1.5% |
200 |
5 |
90 |
60 |
|
|
4.5 |
40 |
4.35 |
3 |
0.6 |
±1.5% |
18 |
1 |
110 |
70 |
|
|
5 |
40 |
4.5 |
3 |
0.6 |
±2.0% |
160 |
10 |
180 |
||
|
4.5 |
18 |
4.5 |
4 |
0.6 |
±1.5% |
100 |
5 |
50 |
30 |
|
|
4.5 |
30 |
4 |
4 |
0.6 |
±1.5% |
200 |
5 |
80 |
50 |
|
|
4.5 |
18 |
4.5 |
5 |
0.6 |
±1.5% |
100 |
5 |
40 |
20 |
|
|
4.5 |
18 |
4.25 |
6 |
0.6 |
±1% |
500 |
10 |
50 |
15 |
|
|
4.5 |
30 |
4 |
5 |
0.6 |
±1.5% |
200 |
5 |
70 |
40 |
|
|
4 |
28 |
3.9 |
6 |
0.6 |
±1.5% |
100 |
3 |
40 |
20 |
|
|
4 |
28 |
3.9 |
8 |
0.6 |
±1% |
100 |
3 |
20 |
10 |
|
|
4 |
23 |
3.9 |
6 |
0.6 |
±1% |
120 |
6 |
38 |
19 |
|
|
4 |
28 |
3.9 |
10 |
0.6 |
±1.5% |
300 |
3 |
25 |
8 |
|
|
4 |
23 |
3.9 |
8 |
0.6 |
±1% |
80 |
3 |
30 |
10 |
|
|
CXSD62551A |
4 |
23 |
3.9 |
8 |
0.6 |
±1% |
120 |
6 |
22 |
11 |
|
4 |
18 |
4.3 |
12 |
0.6 |
±1% |
500 |
10 |
16 |
4 |
|
|
4 |
18 |
3.9 |
16 |
0.6 |
±1.5% |
150 |
7 |
7.5 |
2.5 |
|
|
2.5 |
5.5 |
2.5 |
1.5 |
0.6 |
±1.5% |
50 |
0.1 |
200 |
150 |
|
|
CXSD62496L |
2.5 |
5.5 |
2.5 |
0.6 |
0.6 |
±1.5% |
50 |
0.1 |
300 |
200 |
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