CXSD62528开发了能够输出2A负载电流的高效同步降压DC/DC变换器。在4.5V到18V的宽输入电压范围内工作，集成了主开关和同步开关以及极低的RDS（ON），以最大限度地降低传导损耗。采用瞬时脉宽调制结构，在高降压应用中实现快速瞬态响应，并在轻负载下实现高效率。此外，为了减小电感和电容的尺寸，它在重负载条件下以500kHz的伪恒定频率工作。
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目录
7.相关产品
产品概述 返回TOP
CXSD62528 develops high efficiency synchronous step-down DC/DC converter capable of delivering 2A load current. CXSD62528 operates over a wide input voltage range from 4.5V to 18V and integrates main switch and synchronous switch with very low RDS(ON) to minimize the conduction loss.CXSD62528 adopts the instant PWM architecture to achieve fast transient responses for high step down applications and high efficiency at light loads. In addition, it operates at pseudo-constant frequency of 500kHz under heavy load conditions to minimize the size of inductor and capacitor.
产品特点 返回TOP
· Low RDS(ON) for Internal Switches (Top/Bottom):130/120 mΩ
· 4.5-18V Input Voltage Range
· 2ALoad Current Capability
· Instant PWM Architecture to Achieve Fast Transient Responses
· Internal Soft-start Limits the Inrush Current
· 2% 0.6V Reference
· Cycle-by-cycle Peak Current Limitation
· RoHS Compliant and Halogen Free
· Compact Package: SOT23-6
应用范围 返回TOP
· Set Top Box
· Portable TV
· Access Point Router
· DSL Modem
· LCD TV
· CCTV
· IPCAM
· Networking
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
相关芯片选择指南 返回TOP 更多同类产品。。。。
|
Single Output Step Down Regulator (Integrated Switch) |
||||||||||
|
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 |
◀ 上一篇:高效800kHz自适应恒流关断时间控制异步降压DC稳压器输出1.2A电流CXSD62527软启动
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