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FAN53526

更新时间： 2024-11-03 00:51:51
品牌 Logo 应用领域
安森美 - ONSEMI /
页数 文件大小 规格书
22页 1073K
描述
3.0 A, 2.4 MHz, Digitally Programmable TinyBuck Regulator

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FAN53526 数据手册

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FAN53526  
3.0 A, 2.4 MHz, Digitally  
Programmable TinyBuck)  
Regulator  
Descriptions  
www.onsemi.com  
The FAN53526 is a step−down switching voltage regulator that delivers a  
digitally programmable output from an input voltage supply of 2.5 V to 5.5 V.  
The output voltage is programmed through an I2C interface capable of  
operating up to 3.4 MHz.  
Using a proprietary architecture with synchronous rectification, the  
FAN53526 is capable of delivering 3.0 A continuous at over 80% efficiency,  
maintaining that efficiency at load currents as low as 10 mA. The regulator  
operates at a nominal fixed frequency of 2.4 MHz, which reduces the value of  
the external components. Additional output capacitance can be added to  
improve regulation during load transients without affecting stability.  
At moderate and light loads, Pulse Frequency Modulation (PFM) is used to  
operate in Power−Save Mode with a typical quiescent current of 50 mA at  
room temperature. 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  
2.4 MHz. In Shutdown Mode, the supply current drops below 1 mA, reducing  
power consumption. PFM Mode can be disabled if fixed frequency is desired.  
The FAN53526 is available in a 15−bump, 1.310 mm x 2.015 mm, 0.4 mm  
ball pitch WLCSP.  
WLCSP−15  
CASE 567QS  
MARKING DIAGRAM  
1
2
K
Y
K
Z
Pin−1  
Mark  
X
1, 2  
KK  
= Two Alphanumeric Characters for  
Device Mark  
= Two Alphanumeric Characters for  
Lot Rune Code Mark  
.
= Pin 1 Indicator  
X
Y
Z
= Alphabetical Year Code  
= 2−weeks Date Code  
= Assembly Plant Code  
Features  
• Fixed−Frequency Operation: 2.4 MHz  
• Best−in−Class Load Transient  
PIN CONFIGURATION  
• Continuous Output Current Capability: 3.0 A  
• 2.5 V to 5.5 V Input Voltage Range  
• Digitally Programmable Output Voltage:  
♦ −0.600 V to 1.39375 V in 6.25 mV Steps  
• Programmable Slew Rate for Voltage Transitions  
VIN  
A1  
SW  
A2  
PGND  
A3  
B1  
B2  
B3  
PGND AGND  
C2  
2
• I C−Compatible Interface Up to 3.4 Mbps  
C1  
C3  
• PFM Mode for High Efficiency in Light-Load  
• Quiescent Current in PFM Mode: 50 mA (Typical)  
• Input Under−Voltage Lockout (UVLO)  
• Thermal Shutdown and Overload Protection  
• 15−Bump Wafer−Level Chip Scale Package (WLCSP)  
VSEL  
D1  
EN  
D2  
SDA  
D3  
AGND  
E1  
SCL  
E2  
VOUT  
E3  
Applications  
• Application, Graphic, and DSP Processors  
♦ ARMt, Tegrat, OMAPt, NovaThor,  
ARMADAt, Kraitt, etc.  
ORDERING INFORMATION  
See detailed ordering and shipping information on page 2 of  
this data sheet.  
• Hard Disk Drives, LPDDR3, LPDDR4  
• Tablets, Netbooks, Ultra−Mobile PCs  
• Smart Phones  
• Gaming Devices  
© Semiconductor Components Industries, LLC, 2006  
1
Publication Order Number:  
December, 2017 − Rev. 4  
FAN53526/D  
1234567...22

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