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
CXSD62332 is a 1.2A, 1.6MHz step-down regulator, which is ideal for powering low-voltage microprocessors in compact devices such as GPS and cellular phones. It is optimized for generating low output voltages down to 0.8V. The supply voltage range is from 2.7V to 5.5V allowing the use of a single Li+ cell, three NiMH cells or a regulated 5V input. 1.6MHz pulse-width modulation (PWM) switching frequency allows using small external components. It has flexible operation mode selection of forced PWM mode and skip (low IQ) mode with typical 30μA quiescent current for highest light load efficiency to maximize battery life.
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
技术规格书（产品PDF) 返回TOP
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同步整流降压转换器 |
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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 |
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|
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 |
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非同步降压转换器 |
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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) |
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|
1 |
H |
4.5 |
28.5 |
adj |
3000 |
1400 |
0.8 |
18 |
SOIC-8(EP) |
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|
1 |
H |
4.5 |
38 |
adj |
2000 |
385 |
0.8 |
18 |
SOIC-8(EP) |
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|
1 |
H |
4.5 |
38 |
adj |
2000 |
1400 |
0.8 |
18 |
SOIC-8(EP) |
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|
1 |
H |
4.5 |
18 |
adj |
3000 |
1400 |
0.8 |
18 |
SOIC-8(EP) |
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◀ 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
下一篇▶:2.7V至5.5V电源电压1.2A输出电流CXSD62333效率高达95%低导通电阻P沟道和N沟道MOSFET效率高达95%可编程强制脉宽调制模式
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