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Technical Reference Notes APC12 Centauri II Centauri II (APC12) Non-Isolated DC/DC Power Module Tiny SMT Footprint - 1.8V-12V Input, 0.9V to 3.6V Output PRELIMINARY
The APC12 Centauri II series is Astec's recent addition to its non-isolated SMT POL line. With the wide acceptance of it's predecessor (APC08 series) and the continuous system requirement for higher load current, the Centauri platform have been revolutionized to provide 12A load current from it's original 8A device. The APC12 offers the same standard features common to the Centauri Product Line: wide input voltage range; wide output voltage range; high efficiency; Positive Output Enable; Power Good signal and Current Sharing. It also adapts the same Centauri SMT footprint for optimum user flexibility and multiple sourcing. The APC12 also comes with an output Trim pin, which allows output adjustment from 0.9V to 3.6V through external resistance programming. It works from a wide input voltage range of 1.8V to 13V and offers an extensive array of output voltages starting from 0.9V to 3.6V. It is ideal for Point of Load applications and provides the most flexibility for the ever-changing DSP and ASIC power requirements.
Industry Standard 0.63" x 1.3" x 0.29H SMT
Electrical Parameters
Input Input range Input Surge Efficiency 1.8-6.0VDC and 6.0-13.0VDC 14V 3.3V @ 93.4% (Typical @ 10A) 92.3% (Typical @ 12A)
Control Enable TTL compatible (Positive Logic) Output Regulation (Line, Load, Temp) Ripple and noise Output voltage adjust range Transient Response
Special Features
* * * * * * * * * * Point of Load (POL) applications High efficiency, 3.3V@94% (25%-75% Load) Open Frame SMT Remote On/Off (Positive Enable) Low output ripple and noise Regulation to zero load Programmable Output from 0.9V to 3.6V Fixed frequency switching (200 KHz) Power Good Signal (Optional) Active Current share (Optional)
<3% 75mV - (2.5V Output) 50mV - (<2.5V Output) 0.9V to 3.6V (J Version) typical 5% deviation with 50% to 75% step load 200 S recovery
Environmental Specifications
* * * Operating temperature: -40C to +85C Storage temperature: -40C to +125C MTBF: >1 million hours
Safety
Designed to meet: UL, cUL 60950 Recognized (Pending) TUV EN60950 Licensed (Pending)
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Technical Reference Notes APC12 Centauri II
APC12 Centauri II SERIES THIS SPECIFICATION COVERS THE REQUIREMENTS For A New 1.3" X 0.63" X 0.38"(H), 12A Single Output High Efficiency Non-Isolated SMT DC-DC Converter Vin nominal/ Vin range 3.3V / 1.8-6.0V 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 / 4.2-6.0V 8V / 5.6-13.0V 8V / 5.6-13.0V 8V / 5.6-13.0V 8V / 5.6-13.0V 8V / 5.6-13.0V 8V / 5.6-13.0V 8V / 6.0-13.0V
MODEL NAME APC12J03 APC12J03-91 APC12K03 APC12M03 APC12Y03 APC12G03 APC12F03 APC12J08 APC12J08-91 APC12K08 APC12M08 APC12Y08 APC12G08 APC12F08 Base Model With output trim Base Model Base Model Base Model Base Model Base Model Base Model With output trim Base Model Base Model Base Model Base Model Base Model
Vout/Iout 0.9V, 12A 0.9V, 12A 1.2V, 12A 1.5V, 12A 1.8V, 12A 2.5V, 12A 3.3V, 12A 0.9V, 12A 0.9V, 12A 1.2V, 12A 1.5V, 12A 1.8V, 12A 2.5V, 12A 3.3V, 12A
Notes: 1. "J" (0.9V) version has a stand alone Output Trim Option (suffix "-9") 2. Options (suffix): "-9MA" = Trim with Power Good and Active Current Share "-J" = Tray packaging
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Technical Reference Notes APC12 Centauri II
Electrical Specifications
STANDARD TEST CONDITION on a single unit, unless otherwise specified. TA: 25C (Ambient Air) Forced Airflow 200LFM minimum VIN (P1): Nominal input (refer to Table in sheet 2) 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 VIN VIN,trans VIN VIN,trans TA TSTG Min 1.8 5.6 -40 -40 Typ Max 6.0 7.0 13.0 14.0 85 125 85 Unit Vdc Vdc Vdc Vdc C C %
INPUT SPECIFICATIONS Parameter Operating Input Voltage1 Device 03 08 APC12F08 All All Symbol VIN Min 1.8 5.6 6.0 Typ 3.3 8.0 8.0 250 Max 6.0 13.0 13.0 14.0 300 Unit Vdc Vdc Vdc A mAp-p
Maximum Input Current2 (VIN = 0 to VIN,max; IO = IO,max) Input Ripple Current
5Hz to 20MHz
IIN,max IIN-1
Note: 1. Minimum VIN (03 device) for 1V8, 2V5 and 3V3 versions are 2V2, 3V and 4.2V respectively. Minimum VIN (08 device) for 3V3 is 6.0V. 2. This power module is not internally fused. The use of an input line fuse is recommended.
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Technical Reference Notes APC12 Centauri II
Electrical Specifications (continued)
OUTPUT SPECIFICATIONS Parameter Output Voltage Setpoint VIN = VIN, min to VIN, max at IO =IO,max Device 0.9V 1.2V 1.5V 1.8V 2.5V 3.3V All Symbol VO,SET VO,SET VO,SET VO,SET VO,SET VO,SET IO IO Min 0.873 1.164 1.455 1.746 2.425 3.200 0 0 73 80 83 86 88 90 71 75 79 80 85 88 Typ 0.900 1.200 1.500 1.800 2.500 3.300 20 76 81 86 87 90 92 73 77 81 82 87 90 Max 0.927 1.236 1.545 1.854 2.575 3.400 0.5 1.0 1.5 75 50 12 12 3000 100 79 84 89 90 93 94 74 79 83 84 89 91 200 65 Unit Vdc Vdc Vdc Vdc Vdc Vdc % % % mVPK-PK mVPK-PK A A F m A % % % % % % % % % % % % kHz ms
Output Regulation Line: VIN = VIN, min to VIN, max Load: IO = IO, min to IO, max Temp: TA = -40 C to +85C Output Ripple and Noise3 Peak-to-Peak: 5 Hz to 20 MHz Output Current External Load Capacitance Capacitor ESR Output Current-limit Inception4 Output Short-circuit Current5 Efficiency VIN = 1.8V to 6V1 IO = 12A Resistive Load
2.5V <2.5V All 3V3 All All All J03 K03 M03 Y03 G03 F03 J08 K08 M08 Y08 G08 F08 All
VIN = 5.6V to 13V1 IO = 12A Resistive Load
Switching Frequency Turn-On Time (Input to Output) IO = IO,max; VIN = VIN,nom
6
All
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Technical Reference Notes APC12 Centauri II
Electrical Specifications (continued)
OUTPUT SPECIFICATIONS (continued) Parameter Dynamic Response: Slew Rate Load Change: 50% - 75% IO,max Peak Deviation Settling Time to VO,nom Load Change: 50% - 25% IO,max Peak Deviation Settling Time to VO,nom Device All All All All All Symbol IO/t Min Typ 0.1 5 100 5 100 Max 10 200 10 200 Unit A/s %VO s %VO s
Output Voltage Overshoot All 5 %Vo Passive Resistive Full Load Note: 3. Ripple specs are specified at 56uF decoupling capacitance for 03 devices and 100uF for 08 devices. 4. This feature is only for module protection and is not intended for customer application. The value is specified at 25C ambient air temperature. Operation outside the power-derating curve may result to an OCP. 5. Pulse train with 90ms period and 1 ms pulse width. Average IOUT equals about zero. 6. Input to Output Turn-on time is defined as the difference between t1 and t2: where t1 is the time when the input voltage reaches the minimum VIN (VIN = VIN,min) and t2 is the time when the output voltage reaches its specified range (VO = VO,SET-MIN). FEATURE SPECIFICATION Parameter Output Voltage Adjustment Range7 Module Parallel Capability VIN = VIN,min to VIN,max at IO-TOT = (IO,max)/(60%) Current Sharing to be within: Power Good Open Collector: max sink current max pull-up voltage Output Enable9 Open Collector TTL compatible Module ON: Logic High Module OFF: Logic Low Collector Current Note:
8
Device -9 opt -9MA opt
Symbol -
Min VO VO
Typ -
Max 3.6 3.6
Unit V V
-9MA opt All All
-
40 -
-
60 5 6
%IO-TOT mA V
All All All
4.1 0 -
-
14 0.8 60
Vdc Vdc A
7. Single resistor adjustment or single resistor plus a voltage source adjustment. Refer to sheet 9 for recommendations on how to trim the output voltage. 8. Refer to Figure 6 for the PGood configuration. 9. Refer to Figure 3 for the Output Voltage Enable configuration.
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Technical Reference Notes APC12 Centauri II
Electrical Specifications (continued)
ISOLATION SPECIFICATION - The APC12 series are Non-Isolated units.
SAFETY APPROVAL - UL / cUL 60950, and TUV EN60950 - Flammability and temp rise only.
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Technical Reference Notes APC12 Centauri II
Basic Operation and Features
The APC08/12 Centauri family was designed specifically to address applications where on board distributed power with Pointof-Load Converters (Conversion needed as close to the IC, usually DSP's and ASIC's) is employed. With its wide range input and flexible programmable output, any change in the load becomes very manageable with little to no impact on time to market. All of the converters in this family are buck converters. The APC12x03 versions allow 1.8V to 6V input voltage and the APC12x08 versions allow a 5.6V to 13V input with 14V max surge. MODULE PIN ASSIGNMENT There are 4 to 7 surface mount pins on a Centauri module. The availability of pins from individual modules is relevant to its version / selected option. PIN # P1 P2 P3 P4 P5 P6 P7 DESIGNATION VIN VO GND TRIM ENABLE PGood P Input Voltage Output Voltage Common Ground Output Voltage Adjustment [OPTION] Output Voltage Enable Power Good [OPTION] Load Current Active Sharing [OPTION]
INDUSTRY STANDARD PINOUT When ordered with no options, the module comes with only 4 pins - VIN, Gnd, VOUT and Enable - AND IS COMPATIBLE WITH OTHER LEADING MANUFACTURER's FOOTPRINT. When the full-featured module is required: with Output Trim; Active Current Share and Power Good Signal PINs, "-9MA" suffix is added to the standard part number. Please refer to the Part Number Ordering Scheme for other options (including packaging).
Note: When using the trim function, this module offers much more trim flexibility than the competitive footprint and also requires a jumper between the two footprints to be source compatible. Contact Factory for details.
VIN
Current Share
Enable
Trim
GND VO
PGood
Figure 1. Pin Assignment Viewed from Top of Board.
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Technical Reference Notes APC12 Centauri II
Typical Application Circuit (Standard Pinout)
Recommended C1 is a low ESR (<100 m) 330 F tantalum and C2 is a 1 F ceramic or equivalent. Recommended outputdecoupling capacitor C3 is 56 F (less than 75 m ESR) for APC12x03 devices and 100F (less than 40 m ESR) for APC12x08 devices.
300 F
Figure 2a. Typical Application Circuit.
MODEL: APC12 SERIES JANUARY 6, 2002 REVISION A (PRELIMINARY)
Approx 1" Approx 1"
PCB
Output Capacitor or combination
1uF ceramic cap Measure output ripple across 1uF cap
Figure 2b. Ripple Measurement Setup.
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Technical Reference Notes APC12 Centauri II
Enable Pin (Standard configuration)
Pin P5 is functioned to enable the output voltage of a module. If this pin is left open or connected to 4.1Vdc up to 14Vdc, the module is turned on. On the other hand, if this pin is connected to ground or to a voltage potential from 0 to 0.8Vdc, the module is turned off. The enable pin can source current up to 60A max - suited for typical open-collector transistors readily available in the market. For TTL compatibility, Figure 3 shows a 7405 open collector inverter IC utilized to function the Enable feature. Other common chips that can do the function are 74S05; 74HCT05; non-inverting - 7407; 74S07; 74HC07. If SMT packaging is preferred, Fairchild's Tiny Logic NC7SZ05 or TI's Little Logic SN7SLVC1G06 comes in SOT23 or SC70 packages.
Figure 3. Output Voltage Enable function diagram.
Special Feature Pins (Options): Trim Function (-9):
Pin P4 is used for output voltage adjustment. The output voltage can be trimmed through an external resistor or through an external DC supply as described in the succeeding sections.
Method 1: External Trim Resistor. By connecting an external resistor across P4 and P3 (Gnd), the voltage appearing on pin P2 (Vo) is adjusted to a higher value. The output voltage of a module can be adjusted up to a maximum value of 3.3V (nominal) or 83% of the input voltage, whichever is lower. By connecting an external resistor across P4 and P2, Vo is adjusted to a lower value. Only small reductions, 2%, in voltage are recommended, as adjustment to lower voltages tends to affect the loop compensation of the module. Full range adjustment (from 0.9V to 3.6V) can be obtained from a module with the lowest Vo setpoint (0.9Vo).
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Technical Reference Notes APC12 Centauri II
Trim Function (continued)
To adjust Vo to a higher value, please refer to Figure 4. The required resistor value (Rt) can be determined through Equation (1) where Vo is the voltage on P2 before the adjustment and Vot is the voltage of P2 after Rt is connected.
Rt =
Vref R1 Vot - Vo
Equation (1) Figure 4. Output Voltage Trim Setup.
Please refer to related constants given in TABLE 1 to calculate the Equation. TABLE 1. CONSTANTS 1.2V 1.5V 1.8V 8.45k 4.32k 2.94k 17.4k 9.09k 6.04k
APC08/12x03 APC08/12x08
Vref
Version R2 R2 0.87V
0.9V 97.6k 210k
2.5V 1.69k 3.48k
3.3V 1.13k 2.32k
R1 3.09k 6.49k
Be aware that the maximum Vo allowed is 3.6V. Please refer to Centauri datasheet. Example: Module version: APC08J03-9 (1.8 to 6.0Vin, 0.9Vo). Requiring to adjust output voltage from Vo = 0.9V to Vot = 1.8V. Vref = 0.87V and R1 = 3.09k (from TABLE 1). Based on Equation (1), Rt can be determined as 3.0k. To adjust Vo to a lower value, Rt should be connected between P4 and P2. Equation (2) provides the calculation for Rt.
Rt =
(Vo - Vref )(Vot - Vref ) Vref (Vo - Vot )
R2
Equation (2)
Be aware that the minimum Vo is 0.9V. Example Module version: APC08F03-9 (4.0 to 6.Vin, 3.3Vo). Requiring to adjust the output voltage from Vo = 3.3V to Vot = 3.3 (1-0.02) = 3.234V. Vo = 3.3V, Vot = 3.234V, Vref = 0.87V, R2 = 1.13k (from TABLE 1). Based on Equation (1), Rt can be determined as 111.9k.
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Technical Reference Notes APC12 Centauri II
Trim Function (continued)
Method 2: External DC Source By connecting an external DC supply across P4 (Enable) and P3 (GND) through a limiting resistor Rt, (see Figure 5), output voltage adjustment can also be achieved. Equation 3 provides the relationship between the External DC supply, Vt, and Vo (where Vo is the desired output voltage).
Rt Rt Rt Vt = 1 + + Vref - Vo R1 R1 R2
Equation (3)
Given: Rt = 10k
Figure 5. External DC source for output trim adjust.
Vo Adjustment to Lower Voltages. This method does not limit the recommended lower Vo adjustment to 2% as mentioned on previous sections re: Vo adjustment through external trim resistor. Example: Module version: APC08G03-9 (3V to 6Vin, 2.5Vo). Requiring to adjust the output voltage from Vo = 2.5V to 1.8V Vo = 1.8V, Vref = 0.87V, R1 = 3.09k, R2 = 1.69k (from Table 1). Based on Equation (3), Vt = 3.0V.
Example: Module version: APC08G03-9 (3V to 6Vin, 2.5Vo). Requiring to adjust the output voltage from Vo = 2.5V to 0.9V Vo = 0.9V, Vref = 0.87V, R1 = 3.09k, R2 = 1.69k (from Table 1). Based on Equation (3), Vt = 5.9V. Vo Adjustment to Higher Voltages Example: Module version: APC08G03-9 (3V to 6Vin, 2.5Vo). Requiring to adjust the output voltage from Vo = 2.5V to 3.3V Vo = 3.3V, Vref = 0.87V, R1 = 3.09k, R2 = 1.69k (from Table 1). Based on Equation (3), Vt = -1.84V. If application of negative voltage is not desired, the limiting resistor Rt can either be changed to a lower value (Rt = 1k, such that Vt = 0.60V per Equation 3), or use Method 1.
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Technical Reference Notes APC12 Centauri II
Power Good Signal Operation (Option (-9MA)):
PG pin provides an output signal indicating the Vout is operational (TTL logic signal). It can sink current up to a max of 5mA and can have a maximum external pull-up voltage of 6V. Please see recommended setup shown on Figure 6.
Figure 6. PGood setup.
Active Current Share Operation (Option (-9MA)):
Active Current share pin is compatible with like modules only (APC08 to APC08 or APC12 to APC12). Connecting this pin directly with the same Pin from another module guarantees current sharing to within 40% to 60% Iout. Note that this pin is not compatible with competitive modules that employ active current sharing. To attain efficient current sharing between like modules, the following points are recommended: a) The modules to be shared should be located as close as possible into the host card. b) The copper tracks that connect Vo and GND should at least be 0.60" in width with at least 2 oz. Cu.
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Technical Reference Notes APC12 Centauri II
Performance Curves - Efficiency
APC12F03 Efficiency vs Load Current
100 95 90
APC12G03 Efficiency vs Load Current
100 95 90 85 80 75 70 3V Input 4.5V Input 6V Input
Efficiency (%)
85 80 75 70 65 0 2 4 6 8 10 12 4V input 5V Input 6V Input
Efficiency (%)
0
2
4
6
Load Current (A)
8
10
12
Load Current (A)
Figure 7. APC08F03 Efficiency Curve.
APC12Y03 Efficiency vs Load Current
95 90 Efficiency (%)
Efficiency (%)
Figure 8. APC08G03 Efficiency Curve.
APC12M03 Efficiency vs Load Current
95 90 85 80 75 70 65 1.8V Input 3.3V Input 6V Input
85 80 75 70 65 0 2 4 6 Load Current (A) 8 10 12
2.2V Input 3.3V Input 6V Input
0
2
4
6
Load Current (A)
8
10
12
Figure 9. APC08Y03 Efficiency Curve.
APC12K03 Efficiency vs Load Current
90 85
Figure 10. APC08M03 Efficiency Curve.
APC12J03 Efficiency vs Load Current
90 85 80 75 70 65 60 1.8V Input 3.3V Input 6V Input
75 70 65 60 0 2 4 6 L oa d C u r r e n t ( A ) 8 10 12
1.8V Input 3.3V Input 6V Input
Efficiency (%)
80
0
2
4
6
Load Current (A)
8
10
12
Figure 11. APC08K03 Efficiency Curve.
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Figure 12. APC08J03 Efficiency Curve.
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Technical Reference Notes APC12 Centauri II
Performance Curves - Efficiency (continued)
APC12F08 Efficiency VS. Load Current
95 90 Efficiency [%] Efficiency [%] 85 80 75 70 65 0 2 4 6 8 10 12 Load Current [Amp] Vin = 6V Vin = 8V Vin = 13V 95 90 85 80 75 70 65 0 2 4 6 8 Load Current [Amp] Vin = 6V Vin = 8V Vin = 13V 10 12
APC12G08 Efficiency VS. Load Current
Figure 13. APC12F08 Efficiency Curve.
APC12Y08 Efficiency VS. Load Current
95 90 Efficiency [%] 85 80 75 70 65 0 2 4 6 8 10 12 Load Current [Amp] Vin = 6V Vin = 8V Vin = 13V Efficiency [%] 90 85 80 75 70 65 60 55 0
Figure 14. APC12G08 Efficiency Curve.
APC12M08 Efficiency VS. Load Current
Vin = 6V Vin = 8V Vin = 13V 2 4 6 8 10 12
Load Current [Amp]
Figure 15. APC12Y08 Efficiency Curve.
APC12K08 Efficiency VS. Load Current
90 85 Efficiency [%] Efficiency [%] 80 75 70 65 60 55 0 2 4 6 8 Load Current [Amp] Vin = 6V Vin = 8V Vin = 13V 10 12 90 85 80 75 70 65 60 55 0
Figure 16. APC12M08 Efficiency Curve.
APC12J08 Efficiency VS. Load Current
Vin = 6V Vin = 8V Vin = 13V 2 4 6 8 10 12
Load Current [Amp]
Figure 17. APC12K08 Efficiency Curve.
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Figure 18. APC12J08 Efficiency Curve.
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Technical Reference Notes APC12 Centauri II
Performance Curves - Thermal Derating Curve
APC12F03-9MA; 5V Input
14 12 14 12
APC12G03-9MA; 3.3V Input
Load Current, A
8 6 4 2 0 5 15 25 35 45 55 65 75 85
Load Current, A
10
10 8 6 4 2 0 5 15 25 35 45 55 65 75 85
200LFM 300LFM 400LFM 500LFM
200LFM 300LFM
Ambient Temperature, C
Ambient Temperature, C
Figure 19. F03 - Load current vs. ambient temp.
APC12Y03-9MA; 3.3V Input
14 12
Figure 20. G03 - Load current vs. ambient temp.
APC12M03-9MA; 3.3V Input
14 12
Load Current, A
8 6 4 2 0 5 15 25 35 45 55 65
Load Current, A
10
10 8 6 4 2 0
200LFM 300LFM 400LFM
75 85
200LFM 300LFM 400LFM
5 15 25 35 45 55 65 75 85
Ambient Temperature, C
Ambient Temperature, C
Figure 21. Y03 - Load current vs. ambient temp.
APC12K03-9MA; 3.3V Input
14 12
Figure 22. M03 - Load current vs. ambient temp.
APC12J03-9MA; 5V Input
14 12
Load Current, A
Load Current, A
10 8 6 4 2 0 5 15 25 35 45 55 65 75 85
10 8 6 4 2 0 5 15 25 35 45 55 65 75 85
200LFM 300LFM 400LFM
200LFM 300LFM
Ambient Temperature, C
Ambient Temperature, C
Figure 23. K03 - Load current vs. ambient t temp.
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Figure 24. J03 - Load current vs. ambient temp.
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Technical Reference Notes APC12 Centauri II
Performance Curve - Thermal Derating (continued)
APC12F08, 8V INPUT 14 12 Load Current [A] 10 8 6 4 2 0 5 15 25 35 45 55 65 75 Am bient Tem perature [ oC] 85 200 LFM 400 LFM 600LFM
Figure 25. F08 - Load current vs. ambient temp.
Figure 26. G03 - Load current vs. ambient temp.
Figure 27. Y03 - Load current vs. ambient temp.
Figure 28. M03 - Load current vs. ambient temp.
APC12J08, 8V INPUT 14 12 Load Current [A] 10 8 6 4 2 0 5 15 25 35 45 55 65 75 Am bient Tem perature [ oC] 85 200 LFM 400 LFM 600LFM
Figure 29. K03 - Load current vs. ambient temp.
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Figure 30. J03 - Load current vs. ambient temp.
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Technical Reference Notes APC12 Centauri II
Performance Curves
APC12F03
Figure 31. Input to Output Delay at 12A load (CH2 = Vo; CH1 = Enable Voltage).
Figure 32. Output Ripple and Noise at 12A; VIN = 4V; BW = 20MHz; Ta = 25C.
APC12G03
Figure 33. Input to Output Delay at 12A load (CH2 = Vo; CH1 = Enable Voltage).
Figure 34. Output Ripple and Noise at 12A; VIN = 3.0V; BW = 20MHz; Ta = 25C.
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Technical Reference Notes APC12 Centauri II
Performance Curves (continued)
APC12Y03
Figure 35. Input to Output Delay at 12A load (CH2 = Vo; CH1 = Enable Voltage).
Figure 36. Output Ripple and Noise at 12A; VIN = 3.3V; BW = 20MHz; Ta = 25C.
APC12M03
Figure 37. Input to Output Delay at 12A load (CH2 = Vo; CH1 = Enable Voltage).
Figure 38. Output Ripple and Noise at 12A; VIN = 3.3V; BW = 20MHz; Ta = 25C.
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Technical Reference Notes APC12 Centauri II
Performance Curves (continued)
APC12K03
Figure 39. Input to Output Delay at 12A load (CH2 = Vo; CH1 = Enable Voltage). APC12J03
Figure 40. Output Ripple and Noise at 12A; VIN = 1.8V; BW = 20MHz; Ta = 25C.
Figure 41. Input to Output Delay at 12A load (CH2 = Vo; CH1 = Enable Voltage).
Figure 42. Output Ripple and Noise at 12A; VIN = 1.8V; BW = 20MHz; Ta = 25C.
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Technical Reference Notes APC12 Centauri II
Mechanical Specifications
OUTLINE DRAWING Parameter Dimension Weight Device All All Symbol L W H Min Typ 5 (0.16) Max 1.300 (33.02) 0.630 (16.00) 0.370 ( 9.34) 10 (0.32) Unit in (mm) in (mm) in (mm) g (oz)
PIN / PIN DIMENSION
1.91
Nominal Pin Dimension Suggested Pad Dimensions
0.055 X 0.102 [in] 0.070 X 0.110 [in]
3.18 2.54
Figure 55. Recommended PAD Layout.
Recommended Pick Up Point - flat surface of inductor
Figure 46. Mechanical Outline (in inches).
Figure 56. APC12 Mechanical Outline.
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Technical Reference Notes APC12 Centauri II
Mechanical Specifications (continued)
RECOMMENDED LOCATION FOR PICK AND PLACE The flat top surface of the large inductor (topside of the board) provides a versatile and convenient way of picking up the module (see Figure 56). A 6-7mm outside diameter nozzle from a conventional SMD machine is recommended to attain maximum vacuum pick-up. Nozzle travel and rotation speed should be controlled to prevent this off-centered picked-up module from falling off the nozzle. The use of vision recognition systems for placement accuracy will be very helpful.
REFLOW NOTES / RECOMMENDATIONS
240
RECOMMENDED REFLOW PROFILE
220 200
1.
2.
3.
Refer to the recommended Reflow Profile per Figure 57. Profile parameters exceeding the recommended maximums may result to permanent damage to the module. The module is recommended for topside reflow process to the host card. For other orientations, contact factory. In the event that the module needs to be desoldered from the host card, some pins may be detached from the module.
TEMPERATURE (deg C)
180 160 140 120 100 80 60 40 20 0 0
183C
PEAK TEMPERATURE 200C - 230C REFLOW ZONE
110C
< 80 sec PRE-HEAT ZONE 120 - 180 sec SLOPE < 4C /sec
30
60
90
120
150
180
210
240
270
300
TIME (seconds)
Figure 57. Recommended Reflow Profile.
MODULE MARKINGS / LABELS Marking shall be permanent and legible. Please refer to Figure 58 for the module marking/ label detail.
Note 1 MMM Model No FFF Option Note 2 YYWW Year / Work Week D Day of Week PP nth Panel of the day LL Location in the panel Note 3: Barcode 6 & 7 characters / line Code 128, 32CPI 0.070" Height
APC12MMMFFF YYWWDPPLL
Figure 58. Module Label
MODEL: APC12 SERIES JANUARY 6, 2002 REVISION A (PRELIMINARY)
SHEET 21 OF 23
Technical Reference Notes APC12 Centauri II
Mechanical Specifications (continued)
PACKING AND SHIPPING Standard packaging for the modules will be in tape and reel. Jedec-style tray packaging is also available (add suffix "J" in pn). Please refer to the ordering information. Maximum number of modules in a reel is 250 pcs. The tray can hold 35 modules max. Please refer to Figure 59 for the T&R carrier dimensions and Figure 60 for the tray dimensions.
Figure 59. Tape/ pocket dimensions
Figure 60. Jedec-style tray dimensions in mm.
MODEL: APC12 SERIES JANUARY 6, 2002 REVISION A (PRELIMINARY)
SHEET 22 OF 23
Technical Reference Notes APC12 Centauri II
PART NUMBER CODING SCHEME FOR ORDERING
A
P
C
1
2
x
0
y
-
z
x
y z
Output Voltage F = 3.3V M = 1.5V G = 2.5V K = 1.2V Y = 1.8V J = 0.9V Input Voltage Range 3: 1.8V to 6V 8: 5V to 12V Options 9: Trim function (exist for "J" version only) 9MA: Trim function plus PGood and Current Sharing J: Adding a "J" suffix indicates Jedec style tray packaging; No suffix "J" defaults to T&R packaging
Please call 1-888-41-ASTEC for further inquiries or visit us at www.astecpower.com
MODEL: APC12 SERIES JANUARY 6, 2002 REVISION A (PRELIMINARY)
SHEET 23 OF 23

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