Technical Reference Note (APC08)
Centauri (APC08) Non-Isolated DC/DC Power Module
The Centauri (APC08) DC-DC Power Module is a high efficiency non-isolated buck converter designed for use in a wide
variety of applications. It works from a wide input voltage range of 1.8V to 6V or 5V to 13V and offers an extensive array of
output voltages starting from 0.9V to 3.6V (up to 6V in some flavors). Through careful layout and component selection it
achieves the highest efficiency/load in the smallest footprint available in the market today. It is ideal for Point of Load
applications and provides the most flexibility for the ever-changing DSP and ASIC power requirements.
Electrical Parameters
Input
Input range
Efficiency
1.8-6.0VDC and 5.0-13.0VDC
3.3V @ 93% Typ
Control
Enable TTL compatible (Positive Logic)
Industry Standard
0.53 X 1.3 X 0.29H SMT Package
Output
Regulation
(Line, Load, Temp)
Ripple and noise
Output voltage
adjust range
Transient Response
<3%
75mV - (≥2.5V Output)
50mV - (<2.5V Output)
0.9V to 3.6V (J Version)
5% max deviation with
50% to 75% full load
500 µS (max) recovery
Special Features
•
•
•
•
•
•
•
•
•
•
•
Point of load (POL) applications
High efficiency, 3.3V@93% Typ
-40°C to +85°C Ambient Operating
Temperature
Open Frame SMT
Positive enable function
Low output ripple and noise
Regulation to zero load
Programmable Output from 0.9V to 3.6V
(External Trim Resistor)
Fixed frequency switching (400 KHz)
Power Good Signal (Optional)
Active Current share (Optional)
Environmental Specifications
•
•
•
Operating temperature: -40°C to +85°C
Storage temperature: -40°C to +125°C
MTBF: >3.3 million hours
Safety
Designed to meet:
UL, cUL
60950 Recognized
TUV
EN60950 Licensed
MODEL: APC08 SERIES
OCTOBER 4, 2004 - REVISION 03
SHEET 1 OF 23
Technical Reference Note (APC08)
APC08 SERIES
THIS SPECIFICATION COVERS THE REQUIREMENTS
For A New 1.3" X 0.53" X 0.33”(H) Maximum 28W Single Output High efficiency Non-Isolated SMT DC-DC Converter
MODEL NAME
APC08J03
APC08K03
APC08M03
APC08Y03
APC08G03
APC08F03
APC08J08
APC08K08
APC08M08
APC08Y08
APC08G08
APC08F08
APC05A08
APC04S08
Vin nominal/
Vin range
3.3V / 1.8-6.0V
3.3V / 1.8-6.0V
3.3V / 1.8-6.0V
3.3V / 2.2-6.0V
3.3V / 3.0-6.0V
5.0V / 4.0-6.0V
8V / 5.0-12.0V
8V / 5.0-12.0V
8V / 5.0-12.0V
8V / 5.0-12.0V
8V / 5.0-12.0V
8V / 5.0-12.0V
8V / 5.0-12.0V
8V / 5.0-12.0V
Vout/Iout
0.9V, 8A
1.2V, 8A
1.5V, 8A
1.8V, 8A
2.5V, 8A
3.3V, 8A
0.9V, 8A
1.2V, 8A
1.5V, 8A
1.8V, 8A
2.5V, 8A
3.3V, 8A
5V, 5A
6V, 4A
Options (suffix):
"-9"
= Trim
"-9MA" = Trim with Power Good and Active Current Share
"-J"
= Jedec tray-type packaging
“W”
= Improved Loop Bandwidth / Transient Response (only for APC08x03 series)
MODEL: APC08 SERIES
OCTOBER 4, 2004 - REVISION 03
SHEET 2 OF 23
Technical Reference Note (APC08)
Electrical Specifications
STANDARD TEST CONDITION
on a single unit, unless otherwise specified.
T
A
:
25°C (Ambient Air)
Vin (P1):
APC08x03
+1.8V to +6.0V
APC08x08
+5.0V to +13V
Enable (P5):
Open
Vo (P2):
Connect to load
Gnd (P3):
Return for Vin and Vo
Trim (P4):
Open
PGood (P6):
Open
P (P7):
Open
ABSOLUTE MAXIMUM RATINGS
Stresses in excess of the absolute maximum ratings can cause permanent damage to the device. Functional operation
of the device is not implied at these or in any other conditions in excess of those given in the operational sections of
the specs. Exposure to absolute maximum ratings for extended periods can adversely affect device reliability.
Parameter
Input Voltage
Continuous
Transient (100ms)
Continuous
Transient (100ms)
Operating Temperature
Storage Temperature
Operating Humidity
Device
03
03
08
08
All
All
All
Symbol
V
IN
V
IN,trans
V
IN
V
IN,trans
T
A
T
STG
-
Min
1.8
-
5.0
-
-40
-40
-
Typ
-
-
-
-
-
-
-
Max
6.0
7.0
13.0
14.0
85
125
85
Unit
Vdc
Vdc
Vdc
Vdc
ºC
ºC
%
INPUT SPECIFICATIONS
Parameter
Operating Input Voltage
1
Maximum Input Current
2
(V
IN
= 0 to V
IN,max
; I
O
= I
O,max
)
Input Ripple Current
5Hz to 20MHz
Device
03
08
All
APC05
APC04
All
Symbol
V
IN
I
IN,max
I
IN-1
Min
1.8
5.0
-
Typ
3.3
8.0
-
-
200
Max
6.0
12.0
9.0
6.0
5.0
250
Unit
Vdc
Vdc
A
mAp-p
Note: 1. Minimum V
IN
(03 device) for 1V8, 2V5 and 3V3 versions are 2V2, 3V and 4V respectively. For 08
device, min V
IN
for 5V and 6V versions are 7.5Vin and 8.5Vin
2. This power module is not internally fused. The use of an input line fuse (03 Version: GMA-10A; 08
version: GMA-6A Bussman fuses or equivalent) is recommended.
MODEL: APC08 SERIES
OCTOBER 4, 2004 - REVISION 03
SHEET 3 OF 23
Technical Reference Note (APC08)
Electrical Specifications
(continued)
OUTPUT SPECIFICATIONS
Parameter
Output Voltage Setpoint
(V
IN
=V
IN,min
to V
IN,max
at
I
O
=I
O,max
)
1
Device
APC08J03
APC08K03
APC08M03
APC08Y03
APC08G03
APC08F03
APC08J08
APC08K08
APC08M08
APC08Y08
APC08G08
APC08F08
APC05A08
APC04S08
All
All
All
≥
2.5V
< 2.5V
All
5V
6V
Suffix “W”
All
Suffix “W”
All
All
All
APC08J03
APC08K03
APC08M03
APC08Y03
APC08G03
APC08F03
All
All
Symbol
V
O,SET
Min
0.873
1.164
1.455
1.746
2.425
3.200
0.873
1.164
1.455
1.746
2.425
3.200
4.850
5.820
-
-
-
-
-
0
0
0
-
-
10
100
-
-
74
80
83
85
89
90
-
-
Typ
0.9
1.2
1.5
1.8
2.5
3.3
0.9
1.2
1.5
1.8
2.5
3.3
5.0
6.0
-
-
-
-
-
-
-
-
-
-
-
-
11.5
-
76
81
86
88
91
93
400
-
Max
0.927
1.236
1.545
1.854
2.575
3.400
0.927
1.236
1.545
1.854
2.575
3.400
5.150
6.180
0.5
0.5
±1.5
75
50
8
5
4
5000
500
100
-
-
-
-
-
-
-
-
-
-
50
Unit
Vdc
Output Regulation:
Line: V
IN
=V
IN,min
to V
IN,max
Load: I
O
=I
O,min
to I
O,max
Temp: T
A
= -40
°C
to 85
°C
Output Ripple and Noise
11
Peak to Peak: 5Hz to 20MHz
Output Current Range
External Load Capacitance
9
Capacitor ESR
Output Current Limit Inception
3
Output Short Circuit Current
4
Efficiency
V
IN
= 1.8V to 6V
1
I
O
= 8A Resistive Load
-
-
-
-
-
I
O
%
%
%
mV
PK-PK
mV
PK-PK
A
µF
µF
mΩ
mΩ
A
-
-
-
I
O
-
η
%
Switching Frequency
Turn-On time (Input to Output)
5
I
O
= 8A; V
IN
= V
IN,nom
-
-
KHz
ms
MODEL: APC08 SERIES
OCTOBER 4, 2004 - REVISION 03
SHEET 4 OF 23
Technical Reference Note (APC08)
Electrical Specifications
(continued)
OUTPUT SPECIFICATIONS
Parameter
Efficiency
V
IN
= 6V to 12V
I
O
= 8A Resistive Load
(5A for 5Vo; 4A for 6Vo)
Device
Symbol
APC08J08
APC08K08
APC08M08
APC08Y08
APC08G08
APC08F08
APC05A08
APC04S08
All
Suffix “W”
All
All
∆I
O
/∆t
-
-
Min
71
75
77
81
85
87
90
91
-
-
-
-
Typ
76
81
84
86
90
92
94
95
0.1
1.0
5
500
Max
-
-
-
-
-
-
-
-
-
-
10
-
Unit
Dynamic Response:
Slew Rate
Load Change: 50%-75% I
O
,max
Peak Deviation Settling time
to V
O,nom
Load Change: 50% to 25% I
O,max
Peak Deviation Settling time
to V
O,nom
Output Voltage Overshoot
Passive Resistive Full Load
A/µs
%V
O
µs
%V
O
µs
All
All
-
-
-
-
5
500
10
-
All
-
-
5
-
%V
O
FEATURE SPECIFICATION
Parameter
Output Voltage Adjustment Range
6
Module Parallel Capability
10
Power Good
7
Open Collector max sink current
max pull-up voltage
Condition PG
LOW
90%V
O,SET-MIN
>
V
O
>
110%V
O,SET-MAX
90%V
O,SET-MIN
≤
V
O
≤
100%V
O,SET-MAX
Output Enable
8
Module ON: Logic High
Module OFF: Logic Low
Enable source current at Logic Low
Device
-9 opt
-9MA
Symbol
Min
V
O
40
Typ
-
-
Max
3.6
60
Unit
V
%I
O
mA
V
mΩ
KΩ
All
-
-
PG
LOW
PG
HIGH
0
100
-
-
-
-
5
6
250
-
All
All
All
All
All
> 4.1
0
-
-
-
-
14
0.8
60
Vdc
Vdc
µA
MODEL: APC08 SERIES
OCTOBER 4, 2004 - REVISION 03
SHEET 5 OF 23
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