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TPS62065

更新时间: 2024-02-22 02:43:49
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德州仪器 - TI 转换器
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26页 1159K
描述
3-MHz 2A Step Down Converter in 2x2 SON Package

TPS62065 数据手册

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TPS62065, TPS62067  
www.ti.com  
SLVS833A MARCH 2010REVISED MAY 2010  
3-MHz 2A Step Down Converter in 2x2 SON Package  
Check for Samples: TPS62065, TPS62067  
1
FEATURES  
DESCRIPTION  
2
3 MHz Switching Frequency  
VIN Range from 2.9V to 6V  
The TPS6206x is  
synchronous step down DC-DC converters. They  
provide up to 2.0A output current.  
a family of highly efficient  
Up to 97% Efficiency  
Power Save Mode / 3MHz Fixed PWM Mode  
Power Good Output  
With an input voltage range of 2.9V to 6V the device  
is a perfect fit for power conversion from a 5V or 3.3V  
system supply rail. The TPS6206x operates at 3MHz  
fixed frequency and enters Power Save Mode  
operation at light load currents to maintain high  
efficiency over the entire load current range. The  
Power Save Mode is optimized for low output voltage  
ripple. For low noise applications, TPS62065 can be  
forced into fixed frequency PWM mode by pulling the  
MODE pin high. TPS62067 provides an open drain  
power good output.  
Output Voltage Accuracy in PWM Mode ±1.5%  
Output Capacitor Discharge Function  
Typical 18 µA Quiescent Current  
100% Duty Cycle for Lowest Dropout  
Voltage Positioning  
Clock Dithering  
Supports Maximum 1mm Height Solutions  
Available in a 2x2x0.75mm SON  
In the shutdown mode, the current consumption is  
reduced to less than 1µA and an internal circuit  
discharges the output capacitor.  
APPLICATIONS  
POL  
TPS6206x family is optimized for operation with a tiny  
1.0µH inductor and a small 10µF output capacitor to  
achieve smallest solution size and high regulation  
performance.  
Notebooks, Pocket PCs  
Portable Media Players  
DSP Supply  
The TPS6206X is available in a small 2x2x0.75mm  
8-pin SON package.  
100  
TYPICAL APPLICATION CIRCUIT  
VIN = 3.7 V  
95  
90  
VIN = 5 V  
VIN = 4.2 V  
TPS62067  
L
1.0 mH  
VOUT  
85  
80  
VIN = 2.9 V to 6 V  
1.8 V 2 A  
PVIN  
SW  
AVIN  
R1  
75  
70  
RPG  
100 kW  
360 kW  
CIN  
Cff  
COUT  
EN  
FB  
22 pF  
10 mF  
10 mF  
R2  
AGND  
65  
60  
180 kW  
PGND  
PG  
L = 1.2 mH (NRG4026T 1R2),  
COUT = 22 mF (0603 size),  
VOUT = 3.3 V,  
55  
50  
Mode: Auto PFM/PWM  
0
0.25 0.5 0.75  
1
1.25 1.5 1.75  
2
IL - Load Current - A  
1
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas  
Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.  
2
PowerPAD is a trademark of Texas Instruments.  
PRODUCTION DATA information is current as of publication date.  
Products conform to specifications per the terms of the Texas  
Instruments standard warranty. Production processing does not  
necessarily include testing of all parameters.  
Copyright © 2010, Texas Instruments Incorporated  
 

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