CXSD62332是一个1.2A、1.6MHz的降压稳压器,非常适合为GPS和手机等小型设备中的低压微处理器供电。它被优化以产生低至0.8V的输出电压。电源电压范围为2.7V至5.5V,允许使用单个Li+电池、三个NiMH电池或调节的5V输入。1.6MHz脉冲宽度调制(PWM)开关频率允许使用小型外部组件。它具有灵活的操作模式选择强制PWM模式和跳过(低IQ)模式,具有典型的30μA静态电流,以获得最高的光负载效率,从而使电池寿命最大化。
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产品概述 返回TOP
The CXSD62332 integrates a pair of low on-resistance P-Channel and N-Channel MOSFETs to maximize efficiency and minimize external component count.
The CXSD62332 offers a typical 215ms power-good (PG) timer when powered up. The timer output can be reset by RSI. When shut down, CXSD62332 discharges the output capacitor. Other features include internal digital soft-start, enable for power sequence, over-current protection and thermal shutdown.
CXSD62332 is available in the Green TDFN-3×3-10L package. It is rated over the -40℃ to +85℃ temperature range.
产品特点 返回TOP
• High Efficiency Up to 95%
• 2.7V to 5.5V Supply Voltage
• Very Low Quiescent Current: 30μA in Skip Mode
• 1.2A Guaranteed Output Current
• 3.7% Output Accuracy Over Temperature
• Selectable Forced PWM Mode and Skip Mode
• Less than 1μA Shutdown Current
• 100% Maximum Duty Cycle for Lowest Dropout
• Discharge Output Capacitor when Shut Down
• Internal Digital Soft-Start
• Peak Current Limiting, Short Circuit Protection
• Over-Temperature Protection
• Enable and Power-Good Functions
• Available in Green TDFN-3×3-10L Package
应用范围 返回TOP
Single Li-ion Battery-Powered Equipment
DSP Core Power
GPS and Palmtops
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产品封装图 返回TOP
电路原理图 返回TOP
a
同步整流降压转换器 |
||||||||||
Product |
CH |
Enable |
VCC (Min)V |
VCC (Max)V |
VOUT(V) |
IOUT(mA) |
Frequency (kHz) |
Iq (mA) |
SHDN Iq(μA) |
Package |
1 |
L |
3 |
5.5 |
adj |
3000 |
adj(300 to 2000) |
0.41 |
2 |
TDFN-3x3-10L |
|
1 |
H |
2.5 |
5.5 |
3.3/adj |
2000 |
1400 |
0.3 |
2 |
TDFN-3x3-10L |
|
1 |
H |
2.5 |
5.5 |
1.2/1.8/3.3/adj |
800 |
1600 |
0.03 |
1 |
TSOT-23-5 |
|
1 |
H |
2.5 |
5.5 |
1.2/1.8/3.3/adj |
800 |
1600 |
0.03 |
1 |
TSOT-23-5 TDFN-2x2-6L |
|
1 |
H |
2.5 |
5.5 |
1.2/1.8/3.3/adj |
2000 |
1400 |
0.055 |
2 |
TDFN-3x3-10L |
|
1 |
H |
2.7 |
5.5 |
adj |
1200 |
1600 |
0.03 |
1 |
TDFN-3x3-10L |
|
1 |
H |
2.7 |
5.5 |
adj |
1200 |
1600 |
0.03 |
1 |
TDFN-2x3-8L |
|
1 |
H |
2.5 |
5.5 |
adj |
600 |
6000 |
0.022 |
1 |
TDFN-2x2-6L |
|
1 |
H |
2.5 |
5.5 |
0.6/0.8/1.0/1.1/1.15 /1.2/1.5/1.6/1.8/2.5/ 2.8/3.0/3.3 |
600 |
6000 |
0.022 |
1 |
TDFN-2x2-6L WLCSP-1.21x0.81-6B |
|
非同步降压转换器 |
||||||||||
Product |
CH |
Enable |
VCC (Min)V |
VCC MAX(V) |
VOUT(V) |
IOUT(mA) |
Frequency (kHz) |
Iq (mA) |
SHDN Iq(μA) |
Package |
1 |
H |
4.5 |
28.5 |
adj |
3000 |
385 |
0.8 |
18 |
SOIC-8(EP) |
|
1 |
H |
4.5 |
28.5 |
adj |
3000 |
1400 |
0.8 |
18 |
SOIC-8(EP) |
|
1 |
H |
4.5 |
38 |
adj |
2000 |
385 |
0.8 |
18 |
SOIC-8(EP) |
|
1 |
H |
4.5 |
38 |
adj |
2000 |
1400 |
0.8 |
18 |
SOIC-8(EP) |
|
1 |
H |
4.5 |
18 |
adj |
3000 |
1400 |
0.8 |
18 |
SOIC-8(EP) |
◀ 上一篇:1.4MHz恒定频率电流模式高效单片同步降压稳压器CXSD62331输入PFM低IQ模式2.5V到5.5V输入电压高达2A输出负载电流
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