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Major Power Technology

MA5601 Datasheet Preview

MA5601 Datasheet

38V Synchronous Buck Converter

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MA5601
38V Synchronous Buck Converter
GENERAL DESCRIPTION
The MA5601 is a monolithic synchronous buck regulator. The device integrates two internal
power MOSFETs, and provides 2.5A of continuous load current over a wide input voltage of 8V
to 38V. Current mode control provides fast transient response and cycle-by-cycle current limit.
An internal soft-start prevents inrush current at turn-on, This device, available in
SOP8L-EP(Exposed pad) package, provides a very compact solution with minimal external
components.
FEATURES
- Wide 8V to 38V Operating Input Range
- Integrated 140mΩ Power MOSFET Switches
- Output Adjustable from VFB(1V) to 20V
- Up to 93% Efficiency
- Internal Soft-Start
- Stable with Low ESR Ceramic Output Capacitors
- Fixed 160KHz Frequency
- Cycle-by-Cycle Over Current Protection
- Input Under/Over Voltage Lockout
APPLICATION CIRCUIT
INPUT
C1
10μF/40V
x2
R4
100kΩ
R5 C5
C6 24Ω 100nF
0.1μF
IN BS
EN
SW
PAD MA5601
VDD FB
GND COMP
L1
33μH
R1
40kΩ
OUTPUT
5V 2A
C4
0.1μF
3.3nF
15kΩ
C3
R3
D1 R2
B240
Option
10kΩ
C2
22μF/10V
x2
VOUT=VFB × (1+R1/R2), VFB = 1.00V, R2 suggest 10k~30kΩ
Major Power Technology Co., Ltd.
1/7
Rev.1.0 Jun. 04, 2014




Major Power Technology

MA5601 Datasheet Preview

MA5601 Datasheet

38V Synchronous Buck Converter

No Preview Available !

MA5601
PIN ASSIGNMENT
The package of MA5601 is SOP8L-EP(Exposed pad); the pin assignment is given by:
Name
Description
BS
Boot-Strap Pin. Supply high side gate driver. Decouple this pin to LX pin with 24ohm +
0.1uF ceramic cap.
IN
Power Input pin. Bypass IN to GND with a suitably large capacitor to eliminate noise on
the input to the IC.
SW
Power Switching Output. SW is the switching node that supplies power to the output.
Connect the output LC filter from SW to the output load.
GND Ground.
PAD Ground (Connect to GND).
FB
Feedback Input. FB senses the output voltage to regulate that voltage. Drive FB with a
resistive voltage divider from the output voltage.
COMP
Compensation Node. COMP is used to compensate the regulation control loop. Connect
a series RC network from COMP to GND to compensate the regulation control loop.
EN Enable control. Pull high to turn on. Do not float.
VDD Internal regulator pin
ORDER/MARKING INFORMATION
Order Information
Top Marking (SOP-8L)
Major Power Technology Co., Ltd.
2/7
Rev.1.0 Jun. 04, 2014


Part Number MA5601
Description 38V Synchronous Buck Converter
Maker Major Power Technology
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MA5601 Datasheet PDF






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