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AX3001 の電気的特性と機能

AX3001のメーカーはAXEliteです、この部品の機能は「2A PWM Buck DC/DC Converter」です。


製品の詳細 ( Datasheet PDF )

部品番号 AX3001
部品説明 2A PWM Buck DC/DC Converter
メーカ AXElite
ロゴ AXElite ロゴ 




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AX3001 Datasheet, AX3001 PDF,ピン配置, 機能
AX3001
150KHz, 2A PWM Buck DC/DC Converter
GENERAL DESCRIPTION
The AX3001 series are monolithic IC designed for a step-down DC/DC converter, and
own the ability of driving a 2A load without additional transistor. It saves board space. The
external shutdown function can be controlled by logic level and then come into standby
mode. The internal compensation makes feedback control having good line and load
regulation without external design. Regarding protected function, thermal shutdown is to
prevent over temperature operating from damage, and current limit is against over current
operating of the output switch. If current limit function occurs and VFB is down below 0.5V,
the switching frequency will be reduced. The AX3001 series operates at a switching
frequency of 150KHz thus allow smaller sized filter components than what would be
needed with lower frequency switching regulators. The output version included fixed 3.3V,
5V, 12V, and an adjustable type. The chips are available in a standard 8-lead SOP
package.
FEATURES
- Output voltage: 3.3V, 5V, 12V and adjustable output version.
- Adjustable version output voltage range, 1.23V to 19.5V.
- 150KHz fixed switching frequency.
- Voltage mode non-synchronous PWM control.
- Thermal-shutdown and current-limit protection.
- ON/OFF shutdown control input.
- Short Circuit Protect (SCP).
- Operating voltage can be up to 22V.
- Output load current: 2A.
- SOP-8L Pb-Free packages.
- Low power standby mode.
- Built-in switching transistor on chip.
1/11

1 Page





AX3001 pdf, ピン配列
AX3001
ORDER/MARKING INFORMATION
Order Information
AX3001- XX X X
Output Voltage Package Type Packing
33:3.3V
S: SOP-8L Blank : Tube
50:5.0V
A: Taping
12: 12V
Blank:ADJ
Top Marking
ADJ FIX
Logo
AX 3 0 0 1
YYWWX
Part number
ID code:internal
WW:01~52
Year: 10=2010
11=2011
AXLogo 3 0 0 1
-50
YYWWX
Part number
Output voltage
ID code:internal
WW:01~52
Year: 10=2010
11=2011
ABSOLUTE MAXIMUM RATINGS
Characteristics
Symbol Rating Unit
Maximum Supply Voltage
VCC +24 V
ON/OFF Pin Input Voltage
VEN -0.3 to VCC V
Feedback Pin Voltage
VFB -0.3 to 16 V
Output Voltage to Ground
VOUT -0.8 V
Power Dissipation Internally limited
PD ( TJ-TA ) / θJA W
Storage Temperature Range
TST -65 to +150 °C
Operating Temperature Range
TOP -20 to +125 °C
Operating Supply Voltage
VOP +4.5 to +22 V
Thermal Resistance from Junction to case
θJC 20 °C/W
Thermal Resistance from Junction to ambient
θJA 60 °C/W
Note: θJA is measured with the PCB copper area(need connect to VSS pins) of approximately 1.5 in2 (Multi-layer).
3/11
Axelite Confidential Materials, do not copy or distribute without written consent.
Rev.2.0 Jul.11, 2011


3Pages


AX3001 電子部品, 半導体
(2) Fixed Output Voltage Version
VIN=12V
C1
470uF
C2
0.1uF
U1
1 Vcc
2 SW
3 FB
4 EN
Vss 8
Vss 7
Vss 6
Vss 5
AX3001-33
AX3001
L1
1
2
33uH
Vout=3.3V/2A
D1
B240A
C3 C6
470uF 0.1uF
(3) Adjustable Output Voltage Version With Delayed Startup
VIN=12V
C1
470uF
C2
0.1uF
C4
0.1uF
R3
100k
U1
1 Vcc
2 SW
3 FB
4 EN
Vss 8
Vss 7
Vss 6
Vss 5
ON/OFF AX3001
L1
1
2
22uH
D1
B240A
Vout=2.5V/2A
R1
1.3K
C3 C6
470uF 0.1uF R2
1.2K
VOUT= VFB
(1
+
R1
R2
)
VFB = 1.23V
R2 = 0.47K ~ 2.6K
(4) Inverting -5V Regulator with Delayed Startup
VIN=5~20V
2A/30V
220uF
220uF
0.1uF
0.1uF
100k
1 Vcc
2 SW
3 FB
4 EN
Vss 8
Vss 7
Vss 6
Vss 5
AX3001-50
33uH
3A/20V
100uF 0.1uF IN5400
VOUT
-5V200mA
6/11
Axelite Confidential Materials, do not copy or distribute without written consent.
Rev.2.0 Jul.11, 2011

6 Page



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共有リンク

Link :


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