CXSD62335是一个6MHz的降压开关稳压器，具有600毫安的输出电流能力，能够从2.5伏到5.5伏的输入电压源输出固定的电压。使用同步整流结构，CXSD62335能够提供90%的峰值效率，当负载电流低至1毫安时，效率保持在80%以上。稳压器以6MHz的额定固定频率工作，输出电感和输出电容的外部元件值分别降低至470nH和4.7μF。
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产品概述 返回TOP
The CXSD62335 is a 6MHz, step-down switching voltage regulator, with 600mA output current capability, that delivers a fixed output from an input voltage supply of 2.5V to 5.5V. Using an architecture with synchronous rectification, the CXSD62335 is capable of delivering a peak efficiency of 90%, while maintaining efficiency over 80% at load currents as low as 1mA.
The regulator operates at a nominal fixed frequency of 6MHz, which reduces the value of the external components to as low as 470nH for the output inductor and 4.7μF for the output capacitor.
At moderate and light loads, pulse frequency modulation (PFM) is used to operate the device in power-save mode with a typical quiescent current of 22μA. Even with such a low quiescent current, the part exhibits excellent transient response during large load swings. At higher loads, the system automatically switches to fixed-frequency control, operating at 6MHz. Its output could be programmed for four different voltages, as well as two different on/off delay times, making it ideal for designing primary supply.
The CXSD62335 is available in Green TDFN-2×2-6L and WLCSP-1.21x0.81-6B packages. It operates over an ambient temperature range of-40℃ to +85℃.
产品特点 返回TOP
• 600mA Output Current Capability
• 22μA Typical Quiescent Current
• 6MHz Fixed Frequency Operation
• Best-in-Class Load Transient Response
• Best-in-Class Efficiency
• 2.5V to 5.5V Input Voltage Range
• Output Voltages: 0.6V, 0.8V, 1.0V, 1.1V, 1.15V, 1.2V,
1.5V, 1.6V, 1.8V, 2.5V, 2.8V, 3.0V and 3.3V
• Low Ripple Light-Load PFM Mode
• Internal Soft-Start
• Input Under-Voltage Lockout (UVLO)
• Thermal Shutdown and Overload Protection
• Output Discharge
• Available in Green TDFN-2×2-6L and WLCSP-1.21x0.81-6B Packages
• -40℃ to +85℃ Operating Temperature Range
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产品封装图 返回TOP
电路原理图 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 |
|
|
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) |
|
|
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) |
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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:600毫安输出电流6MHz降压开关稳压器固定频率2.5V至5.5V输入CXSD62334输出电压可编程低纹波轻载PFM模式
下一篇▶:高效同步可输出3A降压型DC变换器负载电流CXSD62341开关频率可在500kHz至2.5MHz内部软启动限制通电时的浪涌电流
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