XC9216
Synchronous Buck DC/DC Converter XC9216
Features
Description
Up to 95% Efficiency
Current mode operation for excellent line
and load transient respon
Low quiescent current: 230µA
Low Switch on Resistance
Internal Switch: 0.35Ω
画鞭炮
： ～ Output voltage 5.5V 0.6V
RDS(ON),
Automatic PWM/PFM mode switching
No Schottky diode required
1.4MHz fixed frequency switching
Short-Circuit protection
Shutdown quiescent current: < 1µA
Low profile SOT-23-5 package (lead-free学生眼中的老师
packaging is now available)
Application
Digital cameras and MP3 Palmtop computers / PDAs Cellular phones Wireless handts and DSL modems PC cards Portable media players
The XC9216 is high efficiency synchronous, PWM step-down DC/DC converters working under an input voltage range of 2.5V to 5.5V. This feature makes the XC9216 suitable for single Li-lon battery-powered applications. Automatic PWM/PFM mode switching saves power at light load. 100% duty cycle capability extends battery life in portable devices, while the
quiescent current is 230µA with no load, and drops to < 1µA in shutdown.
The internal synchronous switch is desired to increa efficiency without an external Schottky diode. The 1.4 MHz fixed switching frequency allows the using of tiny, low profile inductors and ceramic capacitors, which minimized overall solution footprint.
The XC9216 converters are available in the industry standard SOT-23-5 power packages (or upon request).
Order Information
① ② XC9216 -
:
SYMBOL
① ②
DESCRIPTION Denotes Output voltage: B : 1.5V Output; C : 1.8V Output; G:3.3V Output;A : Adjustable Output Denotes Package Types: E: SOT-23-5
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Typical Applications
FIXED OUTPUT VOLTAGE
XC9216
MODEL XC9216-KE XC9216-BE XC9216-CE XC9216-GE
VOUT (V) 1.2 1.5 1.8 3.3
ADJUSTABLE OUTPUT VOLTAGE
VIN (V) 2.2~5.5 2.4~5.5 2.5~5.5 3.4~5.5
MARK F1CE F1F8 F1LE F1F3
MODEL XC9216-AE
VOUT (V) Adjustable Output
Voltage
MARK F1L9
北京市供暖-2-
THE DEVICE RECOMMENDED
XC9216
如何做好财务工作VOUT (V)
CAPACITOR SIZE/TYPE
CIN(µF)
COUT(µF)
1.2 4.7/10(0805) 10(0805) 1.5 4.7/10(0805) 10(0805)
1.8 4.7/10(0805) 10(0805) 3.3 4.7/10(0805) 10(0805)
RESISTOR SIZE/TYPE
R2(KΩ)
100 (0805) 1000(0805) 200(0805) 330(0805)
R1(KΩ)
节约用水怎么画100 (0805) 620(0805) 100(0805) 75(0805)
INDUCTOR SIZE/TYPE
μ( H) μ CKH4B28-2.2 H μ CKH4B28-2.2 H μ CKH4B28-2.2 H μ CKH4B28-2.2 H
Pin Assignment
5
不过的近义词4
1
2
3
SOT-23-5
PIN NUMBER SOT-23- 5
1 2
PIN NAME
VIN GND社保包括什么
3
EN
4
VOUT
5
SW
FUNCTION
Input Ground ON/OFF Control (High Enable) Output Switch Output
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Functional Diagram
XC9216
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Absolute Maximum Ratings
XC9216
Power Dissipation………………………….…….…………………………Internally limited
～ VIN …………………………………..……………….……………………………..- 0.3 V + 6 V
～ VON/OFF ………………………………………………….…………………………- 0.3 V (VIN + 0.3) V
～ VSW ……………………………………..………………………………- 0.3 V (VIN + 0.3) V
～ V F B … … … … … … … … … … … … … . . … . … … … … … … … … … … . . . . . - 0 . 3 V
+6V
℃ ～ ℃ IS W ………………………………………….…………………..……………………………..1.3A
Operating Temperature Range ………………………………………...- 40
+ 85
℃ Lead Temperature (Soldering 10 c.) …………………………………………………..+ 300
℃ ～ ℃ Storage Temperature Range ………………………..……………………….….- 65
+ 150
℃ Junction Temperature ……………………….…..………………..………………………+ 125女村官
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