PCN20080203

Product Change Notices
PCN No.:20080203
Date: 02/29/2008
This is to inform you that AME5104 datasheet has been changed from Rev. A.02 to
Rev. B.01. This notification is for your information and concurrence.
If you require data or samples to qualify this change, please contact AME, Inc.
within 30 days of receipt of this notification.
If we do not receive any response from you within 30 calendar days from the
date of this notification, we will consider that you have accepted this PCN.
If you have any questions concerning this change, please contact:
PCN Originator:
Name: Rellik_sung
Email: [email protected]
Expected 1st Device Shipment Date: 0749
Earliest Year/Work Week of Changed Product:
Description of Change :
1.Adjustable version output voltage range and Operating Voltage are changed from
1.4-37V to 1.4-36V (page 1. Features)
2. The test condition of the output Voltage & Feedback Trip Point & Shutdown
current in Electrical Specifications table are changed from Vin<=40V to Vin<=36V.
(page 7 and page 8)
3. Changed Vin of EN Pin current on page 9 of the characterization curve from 40V
to 36V.
Reason for Change:
Changed foundry from ASMC to CSWC that would effect maximum Vin range.
QPM018B-B
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
lower frequency 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.B.01
1
AME, Inc.
150KHz,3A PWM
DC/DC Buck Converter
AME5104
n Function Block Diagram
EN
V IN
+
Current
Source
Bias
1.235V
Reference
2.5V
Regulator
Start
Up
200 mV
+
220 mV
R
+
COMP
-
Current
Limit
FB
R2
+
R 1=2.5K
-
COMP
+
AMP
-
-
COMP
3A
Switch
Driver
+
+
150 KHz
OSC.
COMP
-
SW
Thermal
Limit
GND
n Typical Application
4
+
Unregulated
DC Input
AME 5104
1
Input
C1
680uF
3
Unregulated
DC Input
2
GND
4
1
Input
C1
680uF
2
SW
Fix Output
R2
1K
+
FB
5
EN
Gnd
D1
1N5825
C2
220 uF
L
O
A
D
C2
220uF
L
O
A
D
R1
FB
AME 5104
Adjustable Output
3
L1
33uH
5
2
SW
EN
L1
47uH
D1
1N5825
Rev.B.01
AME, Inc.
150KHz,3A PWM
DC/DC Buck Converter
AME5104
n Pin Configuration
TO-263-5
Top View
AME5104ACDV
1. IN
2. SW
A M E5104
3. GND
4. FB
5. EN
1
2
3
4
5
n Pin Description
AME5104AJDVxxx
Pin Number
Pin Name
Pin Description
1
IN
2
SW
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.
Analog and Power input. Input Supply Pin.
Place bypass capacitor as close to VIN as possible.
Output voltage feedback input.
Set the output voltage by selecting values for R1 and R2 using:
3
FB
 V

R 1 = R 2  out − 1 
 1 . 23V

Connect the ground of the feedback network to a GND plane.
5
Rev.B.01
EN
Enable, active high.
The enable pin is an active high control. Tie this pin above 2V to enable the
device. Tie this pin below 0.4V to turn off the device.
3
AME, Inc.
150KHz,3A PWM
DC/DC Buck Converter
AME5104
n Ordering Information
AME5104 x x x x xxx x
Special Feature
Output Voltage
Number of Pins
Package Type
Operating Ambient Temperature Range
Pin Configuration
Pin
Configuration
A
(TO-263)
4
1. IN
2. SW
3. GND
4. FB
5. EN
Operating Ambient
Package Type
Temperature Range
Number
of
Pins
C: 0OC to 70OC
V: 5
D: TO-263
Output Voltage
330:
500:
12A:
ADJ:
3.3V
5V
12V
Adjustable
Special Feature
Z:
Lead free
Rev.B.01
AME, Inc.
150KHz,3A PWM
DC/DC Buck Converter
AME5104
n Ordering Information
Part Number
AME5104ACDV330Z
AME5104ACDV500Z
AME5104ACDV12AZ
AME5104ACDVADJZ
Marking*
AME5104
ACDV330
yyww
AME5104
ACDV500
yyww
AME5104
ACDV12A
yyww
AME5104
ACDVADJ
yyww
Output
Voltage
Package
Operating Ambient
Temperature Range
3.3V
TO-263-5
0OC to 70O C
5V
TO-263-5
0OC to 70O C
12V
TO-263-5
0OC to 70O C
ADJ
TO-263-5
0OC to 70O C
Note: ww represents the date code.
* A line on top of the first letter represents lead free plating such as A5104 ACDV330 yyww.
Please consult AME sales office or authorized Rep./Distributor for the availability of package type.
Rev.B.01
5
AME, Inc.
150KHz,3A PWM
DC/DC Buck Converter
AME5104
n Absolute Maximum Ratings
Parameter
.
Symbol
Maximum
Unit
Supply Voltage
VIN
40
V
EN Pin Input Voltage
VEN
-0.3~+25
V
Feedback Pin Voltage
VFB
-0.3~+25
V
Output Voltage to Ground
Vout
-1
V
Operating Voltage
VOP
+4.5~+40
V
TBD*
ESD Classification
Caution: Stree above the listed absolute maximum rating may cause permanent damage to the device.
*HBM B: 2000~3999V
n Recommended Operating Conditions
Parameter
Symbol
Rating
Ambient Temperature Range
TA
0 to 70
Junction Temperature Range
TJ
0 to 125
Storage Temperature Range
TSTG
-65 to 150
Unit
o
C
n Thermal Information
Parameter
Package
Thermal Resistance*
(Junction to Case)
TO-263-5
Die Attach
Symbol
Maximum
θJC
3.5
Unit
o
Thermal Resistance
(Junction to Ambient)
TO-263-5
Internal Power Dissipation
TO-263-5
Conductive
Epoxy
Solder Iron (10 Sec)**
C/W
θJA
23
PD
Internally Limited
350
W
o
C
* Measure θJC on center of molding compound if IC has no tab.
** MIL-STD-202G-210F
6
Rev.B.01
AME, Inc.
150KHz,3A PWM
DC/DC Buck Converter
AME5104
n Electrical Specifications
Unless otherwise specified, VIN=12V for the 3.3V, 5V, and adjustable version and VIN=24V for the 12V version,
ILOAD =500mA
Parameter
Symbol
Test Condition
Min
O
TJ=25 C
VOUT=3.3V
3.168
4.75V≤VI N≤36V, 0.2A≤ILOAD ≤3A TA=0 OC to 70 OC
Output Voltage
VOUT
O
TJ=25 C
VOUT=5V
7V≤VI N≤36V, 0.2A≤ILOAD ≤3A
O
15V≤VIN ≤36V, 0.2A≤ILOAD ≤3A
VFB
TA=0 C to 70 C
VOUT programmed for 5V
8V≤VI N≤36V, 0.2A≤ILOAD ≤3A
O
TA=0 C to 70 C
3.135
4.750
IFB
12.60
TJ=25 C
1.267
O
1.193
1.23
TA=0 C to 70 C
1.280
73
80
VI N=12V,ILOAD=3A
VOUT=12V
%
90
77
VI N=12V,ILOAD=3A
Adjustable Version Only,
TJ=25OC
O
O
VF B=1.3V
TA=0 C to 70 C
TJ=25OC
10
127
Oscillator Frequency
FOSC
(Note 1)
Saturation Voltage
VSAT
IOUT=2A (Note2,3)
Max. Duty Cycle (ON)
Dmax
(Note 3)
100
Min. Duty Cycle (OFF)
Dmin
(Note 4)
0
O
O
TA=0 C to 70 C
110
150
O
TJ=25 C
O
1.3
O
TA=0 C to 70 C
ICL
Peak Current
TJ=25 C
(Note2,3)
O
IL
Quiescent Current
IQ
Rev.B.01
100
173
173
1.4
1.5
nA
KHz
V
5.5
O
3.6
4.5
TA=0 C to 70 C
Output Leakage Current
50
%
O
Current Limit
V
12.48
11.40
VI N=25V,ILOAD=3A
VOUT=5V
Feedback Bias Current
5.250
12.0
VOUT=3.3V
η
5.200
5.0
VI N=12V,ILOAD=3A
VOUT=5V
Efficiency
3.465
O
O
Units
3.342
11.52
O
Max
3.3
4.800
O
TJ=25 C
VOUT=12V
Feedback Trip Point
O
Typ
Output=0V
(Note 2,4)
(Note 4)
A
6.5
5
50
µA
10
mA
7
AME, Inc.
150KHz,3A PWM
DC/DC Buck Converter
AME5104
n Electrical Specifications
Parameter
Symbol
Test Condition
Min
Typ
O
TJ=25 C
Shutdown current
ISD
EN pin=5V VIN=36V
O
250
150
O
TA=0 C to 70 C
EN Input Threshold (High)
Max
300
VEH
Low (Regulator ON)
EN Input Threshold (Low)
VEL
High (Regulator OFF)
EN Input Current(High)
IEH
VEN =2.5V (Regulator OFF)
5
15
EN Input Current(Low)
IEL
VEN =0.5V (Regulator ON)
0.02
5
Units
µA
0.6
2.0
1.3
V
µA
Note 1: The switching frequency is reduced when the second stage current limit is activated.
Note 2: No diode, inductor or capacitor connected to output pin.
Note 3: Feedback pin removed from output and connected to 0V to force the output transistor switch ON.
Note 4: Feedback pin removed from output and connected to 12V for the 3.3V, 5V, ADJ. version, and 15V for the
12V version, to force the output transistor switch OFF.
8
Rev.B.01
AME, Inc.
150KHz,3A PWM
DC/DC Buck Converter
AME5104
n Characterization Curve
Switch Current Limit
Switch vs Saturation Voltage
1.4
5.5
VIN=12V
VIN =12V
VOUT=5V
5.4
Switch Current Limit(A)
Saturation Voltage(V)
1.3
V OUT =5V
1.2
1.1
1.0
0.9
0.8
5.3
5.2
5.1
5.0
4.9
4.8
4.7
4.6
4.5
0.7
0
1
2
4.4
-40
3
-25
Switch Current(A)
0
25
75
125
Junction Temperature(℃)
IQ vs. Temperature
Shutdown Quiescent Current
180
5.2
VIN =12V
V FB=12V
V OUT=5V
5.1
V EN =5V
160
VOUT=5V
140
Current(uA)
IQ(mA)
5.0
4.9
4.8
120
100
4.7
80
60
40
4.6
20
4.5
-40
-25
0
25
75
0
0
125
30
40
Normalized Output Voltage
EN Pin Current(Sinking)
50
12
VIN=12V
VOUT=5V
I LOAD=200mA
VI N=36V
VOUT =5V
VFB=GND
10
1.0
Current(uA)
Output Voltage Change(%)
20
Supply Voltage(V)
2.0
1.5
10
Temperature(℃)
0.5
0
-0.5
8
6
4
-1.0
2
-1.5
-2.0
-40
0
-25
0
25
75
125
Junction Temperature(℃)
Rev.B.01
155
0
5
10
15
20
25
30
EN Pin Voltage(V)
9
AME, Inc.
150KHz,3A PWM
DC/DC Buck Converter
AME5104
n Characterization Curve
VFB vs. Temperature
Frequency vs VIN
171
1.28
1.26
167
1.25
VFB (V)
VOUT =5V
ILOAD=0.5A
163
Frequency(KHz)
1.27
VIN =12V
VOUT=5V
I LOAD=0. 5A
1.24
1.23
1.22
1.21
159
155
151
147
143
139
135
1.20
131
1.19
-40
-25
0
25
Temperature(℃)
10
75
125
127
10
20
30
40
VIN(V)
Rev.B.01
AME, Inc.
150KHz,3A PWM
DC/DC Buck Converter
AME5104
n Tape and Reel Dimension
TO-263-5
P
W
PIN 1
AME
AME
Carrier Tape, Number of Components Per Reel and Reel Size
Package
Carrier Width (W)
Pitch (P)
Part Per Full Reel
Reel Size
TO-263-5
24.0±0.1 mm
4.0±0.1 mm
800pcs
330±1 mm
n Package Dimension
TO-263-5
Top View
Side View
A
K
Bottom View
A1
E
B1
B
H
PIN 1
P
D
N
G
Front View
C
Rev.B.01
R
SYMBOLS
MILLIMETERS
INCHES
MIN
MAX
MIN
MAX
A
B
C
D
E
G
H
K
10.050
10.668
0.396
0.420
8.280
9.169
0.326
0.361
4.310
4.670
0.170
0.184
0.660
0.910
0.026
0.036
1.140
1.400
0.045
0.055
N
P
R
A1
B1
1.70REF
0.067 REF
14.600
15.875
0.575
0.625
1.143
1.680
0.045
0.066
0.330
0.580
0.013
0.023
2.280
2.800
0.090
0.110
0o
7.50
8o
7.70
0o
0.295
8o
0.303
5.80
6.45
0.228
0.254
11
www.ame.com.tw
E-Mail: [email protected]
Life Support Policy:
These products of AME, Inc. are not authorized for use as critical components in life-support
devices or systems, without the express written approval of the president
of AME, Inc.
AME, Inc. reserves the right to make changes in the circuitry and specifications of its devices and
advises its customers to obtain the latest version of relevant information.
 AME, Inc. , February 2008
Document: OR2596-DS5104-B.01
Corporate Headquarter
AME, Inc.
2F, 302 Rui-Guang Road, Nei-Hu District
Taipei 114, Taiwan, R.O.C.
Tel: 886 2 2627-8687
Fax: 886 2 2659-2989
U.S.A.(Subsidiary)
Analog Microelectronics, Inc.
3100 De La Cruz Blvd., Suite 201
Santa Clara, CA. 95054-2438
Tel : (408) 988-2388
Fax: (408) 988-2489