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-d.
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







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