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Buck Converter. AME5104 Datasheet

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Buck Converter. AME5104 Datasheet
















AME5104 Converter. Datasheet pdf. Equivalent













Part

AME5104

Description

DC/DC Buck Converter



Feature


AME, Inc. AME5104 n General Description The AME5104 is a monolithic IC that was designed as a step-down DC/DC Converte r and owns the ability of driving a 3A load without additional transistor comp onent.The output versions included 3.3V ,5V,12V and an adjustable type.It opera tes at a switching frequency of 150KHz thus allowing smaller sized filter comp onents otherwise i.
Manufacture

Analog Microelectronics

Datasheet
Download AME5104 Datasheet


Analog Microelectronics AME5104

AME5104; t would need www.DataSheet4U.com lower f requency switchhing regulators. Other f eatures include a guaranteed +4% tolera nce on output voltage under specified i nput voltage and output load conditions , and +15% on the oscillator frequency. Regarding protected function, current limit is to protect over current operat ing of the output switch. 150KHz,3A PW M DC/DC Buck Conve.


Analog Microelectronics AME5104

rter n Features l 3.3V, 5V, 12V and adj ustable l Adjustable version output vol tage range: 1.4-36V l +4% max over line and load conditions l 150KHz +15% fixe d switching frequency l TTL shutdown ca pability l Operating voltage can be up to 36V l Output load current: 3A l TO-2 63-5L package l Low power standby mode l Current-limit protection l High effic iency l Built-in a.


Analog Microelectronics AME5104

switching transistor on chip, requires only 4 external components l All AME's Lead Free Products Meet Standards RoHS n Applications l Simple High-efficienc y step-down regulator l Positive to neg ative converter l On-card switching reg ulators Rev.C.02 1 AME, Inc. AME5104 n Function Block Diagram EN V IN www.D ataSheet4U.com Current + + 150KHz,3A P WM DC/DC Buck Conv.





Part

AME5104

Description

DC/DC Buck Converter



Feature


AME, Inc. AME5104 n General Description The AME5104 is a monolithic IC that was designed as a step-down DC/DC Converte r and owns the ability of driving a 3A load without additional transistor comp onent.The output versions included 3.3V ,5V,12V and an adjustable type.It opera tes at a switching frequency of 150KHz thus allowing smaller sized filter comp onents otherwise i.
Manufacture

Analog Microelectronics

Datasheet
Download AME5104 Datasheet




 AME5104
AME, Inc.
AME5104
150KHz,3A PWM
DC/DC Buck Converter
n General Description
The AME5104 is a monolithic IC that was designed as a step-down DC/DC Converter and owns the ability of driving a
3A load without additional transistor component.The output versions included 3.3V,5V,12V and an adjustable type.It
operates at a switching frequency of 150KHz thus allowing smaller sized filter components otherwise it would need
www.DataSheelot4wUe.crofmrequency switchhing regulators.
Other features include a guaranteed +4% tolerance on output voltage under specified input voltage and output load
conditions, and +15% on the oscillator frequency. Regarding protected function, current limit is to protect over current
operating of the output switch.
n Features
l 3.3V, 5V, 12V and adjustable
l Adjustable version output voltage range:
1.4-36V
l +4% max over line and load conditions
l 150KHz +15% fixed switching frequency
l TTL shutdown capability
l Operating voltage can be up to 36V
l Output load current: 3A
l TO-263-5L package
l Low power standby mode
l Current-limit protection
l High efficiency
l Built-in a switching transistor on chip,
requires only 4 external components
l All AME's Lead Free Products Meet
Standards RoHS
n Applications
l Simple High-efficiency step-down regulator
l Positive to negative converter
l On-card switching regulators
Rev.C.02
1




 AME5104
AME, Inc.
AME5104
150KHz,3A PWM
DC/DC Buck Converter
n Function Block Diagram
EN
www.DataSheet4U.com Current
Source
Bias
1.235V
Reference
FB
+
R2
AMP
-
R 1=2.5K
+
COMP
-
2 .5V
Regulator
Start
Up
++
200 mV 220 mV
-
COMP
+
150 KHz
OSC .
+
COMP
Current
Limit
-
-
COMP
+
Driver
Thermal
Limit
VIN
R
3A
Switch
SW
GND
n Typical Application
+
Unregulated
DC Input
4 FB
1
Input
AME 5104
Fix Output
2
SW
C1 3 GND
680uF
5 EN
L1
33u H
D1
1N5825
C2
220 u F
L
O
A
D
+
Unregulated
DC Input
R2
1K 4 FB
1
AME 5104
2
Input AdjustableOutput SW
3 Gnd
C1
6 8 0u F
5 EN
R1
L1
4 7uH
D1
1N5825
2
C2
2 2 0u F
L
O
A
D
Rev.C.02




 AME5104
AME, Inc.
AME5104
n Pin Configuration
www.DataSheet4U.com
TO-263-5
Top View
AME5104
AME5104ACDV
1. IN
2. SW
3. GND(TAB)
4. FB
5. EN
150KHz,3A PWM
DC/DC Buck Converter
n Pin Description
AME5104AJDVxxx
Pin Number Pin Name
1 IN
2 SW
Pin Description
Analog and Power input. Input Supply Pin.
Place bypass capacitor as close to VIN as possible.
Power Switch input.
This is the drain of the internal NMOS power switch.
Minimize the metal trace area connected to this pin to minimize EMI.
3
GND
Ground. Tie directly to ground plane.
Output voltage feedback input.
Set the output voltage by selecting values for R1 and R2 using:
3
FB
R1 =
R
2

V out
1.23V
1
Connect the ground of the feedback network to a GND plane.
Enable, active low.
5 EN The enable pin is an active low control. Tie this pin above 2V to turn off the
device. Tie this pin below 0.6V to enable the device.
Rev.C.02
3




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