limit. The XA3106 converters are available in The XA3106 is high efficiency, fixed frequency,特战队电视剧大全
F e a t u r e s
Synchronous rectification: Up to 95%
efficiency
Single inductor
Fixed frequency operation with battery
voltages above, below or equal to the output
Quiescent current ：1mA (50uA low power
mode: mode pin high)
Up to 600mA continuous output current 1.8V to 5.5V input and output voltage range Programmable oscillator frequency from
350kHz to 1.5MHz
No Schottky Diodes required V OUT disconnected from V IN during
shutdown
Shutdown current: I Q ＜1µA
Package: small thermally enhanced 10-pin
MSOP
A p p l i c a t i o n
item是什么意思
Digital cameras and Wireless handts Palmtop computers
D e s c r i p t i o n
Buck-Boost DC/DC converters which operates from input voltages above, below or equal to the output voltage. The devices are suitable for single lithium-ion, multicell alkaline or NiMH applications where the output voltage is within the battery voltage range.
The switching frequencies up to 1.5 MHz could be fixed by employing an external resistor, and the o
scillator could be synchronized to an external clock. the quiescent current is 1mA, and this feature maximizing the battery life in portable applications.
Other features include a 1 µA shutdown, soft-start control, thermal shutdown and current the 10-pin thermally enhanced MSOP packages (or upon request).
Handheld instruments MP3/MP4 players
S y n c h r o n o u s B u c k -B o o s t D C /D C R e g u l a t o r
T y p i c a l A p p l i c a t i o n s
A b s o l u t e M a x i m u m R a t i n g s
V IN ……………………………………………………………………….………….……- 0.3 V ～ + 6 V VRT,FB,SHDN/SS, SYNC ………………………………………….…………………- 0.3 V ～+ 6 V V SW ………………………………………….……………………..……….….…..……- 0.3 V ～ + 6 V V OUT ……………………………………...……………………………….….…..….......- 0.3 V ～ + 6 V Operating Temperature Range ………………...………….…………....….…........- 40 ℃～ + 85℃ Lead Temperature (Soldering 10 c.) ….………………...………...….….…………………+ 300℃ Storage Temperature Range …………………...……………………….….……..- 65 ℃～ + 150℃
P i n A s s i g n m e n t
MSOP-10L
PIN NUMBER MSOP-10
PIN NAME
FUNCTION 1 R T Program the Oscillator
Frequency 2 MS MODE/SYNC 3
SW1 Switch 1 4 SW2 Switch 2 5 GND Ground 6 V OUT Output 7 V IN Input
8 EN ON/OFF Control (High Enable) 9 FB Feedback 10
V C
Error Amp Output
E l e c t r i c a l C h a r a c t e r i s t i c s
Operating Conditions: T A =25, V ℃IN =3.6V unless otherwi specified.
PARAMETER
CONDITIONS
MIN TYP MAX UNITS Input Start-Up Voltage 1.8 1.9 V Input Operating Range 1.8 5.5 V Output Voltage Adjust Range
薄荷减肥2.5 5.5 V Feedback Voltage
1.200 1.212 1.220 V
新个税计算公式
Quiescent Current, Shutdown
EN=0V, Not Including Switch
Leakage
国家励志奖学金0.1 1 µA Quiescent Current, Active V C =0V ， SYNC=0V 1 mA
NMOS Switch Leakage Switches B and C 0.1 5 µA PMOS Switch Leakage Switches A and D 10 µA NMOS Switch On Resistance Switches B and C 0.19 Ω PMOS Switch On
Resistance Switches A and D 0.22 Ω Input Current Limit
1 A Boost (% Switch C On) 55 75 % Maximum Duty Cycle Buck (% Switch A On) 100 % Minimum Duty Cycle 0 % Frequency Accuracy 0.8 1 1.4 MHz SYNC Input High
2 SYNC Input Low
大专生自我鉴定0.4 V
SYNC Input Current V SYNC =5.5V 0.01 1 µA Error Amp AVOL
90 dB
Error Amp Source Current 1.5 µA Error Amp Sink Current
380 A EN Input High 1.8 EN Input Low When IC is Enabled恁时
0.4 V EN Threshold When EA is at Maximum Boost Duty Cycle 2.2 V
EN Input Current V EN =5.5V
0.01
1
µA
T y p i c a l P e r f o r m a n c e C h a r a c t e r i s t i c s
Output Ripple Output Ripple
采莲曲古诗意思(VIN=2.5V, VOUT=3.3V, IIOAD=80mA) (VIN=3.78V, VOUT=3.3V, IIOAD=100mA)
Output Ripple
(VIN=2.5V, VOUT=3.3V, IIOAD=80mA)
