HP2403

HP2403
High Efficiency DC\DC Power Module
FEATURES:
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GENERAL DESCRIPTION:
The HP2403 is a high frequency, high power
density and complete DC/DC power module. The
PWM controller, power MOSFETs and most of
support components are integrated in one
hybrid package. Additional, a new patent
technology is adopted to stack power choke on
the hybrid module in order to achieve high
power density.
High Power Density Power Module
Standard DOSA footprint
Maximum Load:20A
Input Voltage Range from 4.5V to 14.5V
Output Voltage Range from 0.6V to 5.0V
97% Peak Efficiency
Voltage Mode Control
Protections (OCP, UVP, OTP, Non-latching)
Internal Soft Start
Pre-Biased Output
Fixed Switching Frequency of 600kHz
Power Good Indication
Small size and low profile
(12.19mm x 12.19mm x 8.4mm)
Negative / Positive on/off logic
Pb-free Available (RoHS compliant)
MSL 2a, 245ºC Reflow
Compliant to IPC-9592 (September 2008)
The features of HP2403 include voltage mode
control with high phase margin compensation,
internal soft start, protections, and pre-biased
output function. Besides, HP2403 is an easy to
use DC/DC power module, it only needs
input/output capacitors and one voltage dividing
resistor to perform properly.
The low profile and compact size enables
utilization of space on the bottom or top of PC
boards either for highly density point of load
regulation to save the space and area. It is
suitable for automated assembly by standard
surface mount equipment and complies with
Pb-free and RoHS compliance.
APPLICATIONS:
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General Buck DC/DC Conversion
DC Distributed Power System
Telecom and Networking Equipments
Servers System
TYPICAL APPLICATION CIRCUIT & PACKAGE SIZE:
8.4 mm
12.19 mm
12.19 mm
FIGURE.2 HIGH DENSITY POWER MODULE
FIGURE.1 TYPICAL APPLICATION CIRCUIT
1
HP2403
High Efficiency DC\DC Power Module
ELECTRICAL SPECIFICATIONS:
CAUTION: Do not operate at or near absolute maximum rating listed for extended periods of time. This stress may
adversely impact product reliability and result in failures outside of warranty.
Parameter
n
Min.
Typ.
Max.
Unit
-0.3
-
+16.0
V
ON/OFF to GND
-0.3
-
+7.0
V
VS+ to GND
-0.3
-
+7.0
V
TRIM to GND
-0.3
-
+7.0
V
PGOOD to GND
-0.3
-
+7.0
V
Tc
-
-
+110
°C
Tj
-40
-
+125
°C
Tstg
-40
-
+125
°C
Human Body Model (HBM)
-
-
2k
V
Machine Model (MM)
-
-
100
V
Charge Device Model (CDM)
-
-
1k
V
-
15
-
℃/W
Input Supply Voltage
+4.5
-
+14.5
V
Adjusted Output Voltage
+0.6
-
+5.0
V
-40
-
+85
°C
Absolute Maximum Ratings
VIN to GND
ESD Rating
n
Continuous
Thermal Information
Rth(jchoke-a)
n
Description
Thermal resistance from junction to
ambient.
Recommendation Operating Ratings
VIN
VOUT
Ta
Ambient Temperature
NOTES:
1. Parameters guaranteed and tested by power IC vendor.
2. Rth(jchoke-a) is measured with the component mounted on an effective thermal conductivity test board on 0 LFM
condition. The test board size is 80mm×80mm×1.6mm with 4 layers. The test condition is complied with JEDEC
EIJ/JESD 51 Standards.
2
HP2403
High Efficiency DC\DC Power Module
ELECTRICAL SPECIFICATIONS: (Cont.)
Conditions: TA = 25 ºC, unless otherwise specified.
Vin=12V, Vout=3.3V, Cin=22uF/Ceramic×3, Cout=47uF/Ceramic×4 + POScap LOW ESR 330uF
Symbol
IQ(VIN)
IS(VIN)
IOUT(DC)
ΔVOUT/ΔVIN
ΔVOUT/ΔIOUT
VOUT(AC)
Vo,
Input supply bias
Iout = 0A
current
Vin = 12V, Vout = 3.3V
Input supply current
set
Output continuous
current range
Line regulation
accuracy
Load regulation
Iout = 20A
Vin = 12V, Vout = 3.3V
Vin=12V, Vout=3.3V
Typ.
Max.
Unit
-
75
-
mA
-
5.8
-
A
0
-
20
A
-
0.3
-
%
-
0.5
-
%
-
25
35
mVp-p
+1.0
%Vo,set
Vin = 10.8V to 13.2V
Vout = 3.3V, Iout = 0A
Vout = 3.3V, Iout = 20A
Iout = 0A to 20A
accuracy
Vin = 12V, Vout = 3.3V
Iout = 20A
Output ripple voltage
Vin = 12V, Vout = 3.3V
Output voltage set
point
TJ = 25°C, with 0.5% tolerance
for external resistor used to set
-1.0
output voltage
Dynamic Characteristics
ΔVOUT-DP
Voltage change for
positive load step
ΔVOUT-DN
Voltage change for
negative load step
Iout = 10A to 20A
Current slew rate = 2.5A/uS
Vin = 12V, Vout = 3.3V
Iout = 10A to 20A
Current slew rate = 2.5A/uS
Vin = 12V, Vout = 3.3V
-
100
150
mVp-p
-
100
150
mVp-p
TJ = 25°C
0.597
0.6
0.603
–40°C < TJ < 125°C
0.594
0.6
0.606
540
600
660
kHz
0.500
0.525
0.550
V
0.655
0.675
0.700
V
Control Characteristics
VREF
Reference voltage
FOSC
Oscillator frequency
VUV
VOV
n
Min.
Output Characteristics
n
n
Conditions
Input Characteristics
n
n
Parameter
Feedback lower
voltage limit for
PGOOD
Feedback upper
voltage limit for
PGOOD
V
ON-OFF Control, (Negative logic)
Von/off
Logic Low Voltage
Module On
-0.2
-
0.8
V
Von/off
Logic High Voltage
Module Off
3.0
-
VIN
V
Ion/off
Logic Low Current
Module On
-
10
uA
Ion/off
Logic High Current
Module Off
-
1
mA
3
HP2403
High Efficiency DC\DC Power Module
ELECTRICAL SPECIFICATIONS: (Cont.)
Conditions: TA = 25 ºC, unless otherwise specified.
Vin=12V, Vout=3.3V, Cin=22uF/Ceramic×3, Cout=47uF/Ceramic×4 + POScap LOW ESR 330uF
Symbol
n
n
Conditions
Min.
Typ.
Max.
Unit
Efficiency
η
Efficiency
η
Efficiency
η
Efficiency
η
Efficiency
η
Efficiency
η
Efficiency
VIN=12V, VOUT=1.0V,
IOUT=20A
VIN=12V, VOUT=1.2V,
IOUT=20A
VIN=12V, VOUT=1.8V,
IOUT=20A
VIN=12V, VOUT=2.5V,
IOUT=20A
VIN=12V, VOUT=3.3V,
IOUT=20A
VIN=12V, VOUT=5.0 V,
IOUT=20A
86.6
%
88.3
%
91.5
%
93.2
%
94.4
%
95.8
%
PWM
DMAX
TON(min)
n
Parameter
Maximum duty cycle
90%
Minimum
controllable pulse
width
70
ns
Fault Protection
TTSD
Shutdown
temperature
Note 3 (Tj of internal PWM IC)
145
NOTES:
1. Parameters guaranteed by PWM IC vendor design and test prior to module assembly.
4
℃
HP2403
High Efficiency DC\DC Power Module
PIN CONFIGURATION:
Bottom View
PIN DESCRIPTION:
Symbol
Pin No.
ON/OFF
1
VIN
2
GND
3、7
VOUT
4
VS+(SENSE)
5
TRIM
6
NC
8、9
PGOOD
10
Description
Enable – to pull the pin lower than 0.8V
Disable – to float the pin or pull the pin higher than 3.0V
Power input pin. It needs to be connected to input rail. It also needs to
be connected to thermal dissipation layer by vias connection.
All voltage levels are referenced to the pins. All pins should be connected
together with a ground plane
Power output pin. It needs to be connected to output rail. It also needs
to be connected to thermal dissipation layer by vias connection.
Output voltage sensing pin. Connect to output loading to eliminate the
positive voltage loss along the trace and keep the regulation at loading.
CAUTION: Do not leave this pin open.
Feedback input. Connect a resistor between this pin and ground for
adjusting output voltage. Place this resistor as closely as possible to this
pin and ground.
No connect
This is an open drain signal and pulls low when any condition exists that
would indicate that the output of the supply might be out of regulation. An
external pull-up resistor 50kohm should be connected to a supply +5V.
5
HP2403
High Efficiency DC\DC Power Module
TYPICAL PERFORMANCE CHARACTERISTICS: (VOUT=1.0V)
Conditions: Cin=22uF/Ceramic×3, Cout=47uF/Ceramic×4 + POScap LOW ESR 330uF. Test Board Information:
80mm×80mm×1.74mm, 4 layers.
NOTES:
The output ripple and transient response are measured by short loop probing and limited to 20MHz bandwidth.
The following figures are the typical characteristic curves at 1.0Vout.
FIG.3 EFFICIENCY V.S. LOAD CURRENT
(VIN=12V, VOUT=1.0V)
FIG.4 DE-RATING CURVE
(VIN=12V, VOUT=1.0V)
FIG.5 OUTPUT RIPPLE
(VIN=12V, IOUT=0A)
FIG.6 OUTPUT RIPPLE
(VIN=12V, IOUT=20A)
FIG.7 TRANSIENT RESPONSE
(VIN=12V, 50% to 100% LOAD STEP)
FIG.8 TURN-ON
(VIN=12V, IOUT=20A)
6
HP2403
High Efficiency DC\DC Power Module
TYPICAL PERFORMANCE CHARACTERISTICS: (VOUT=1.2V)
Conditions: Cin=22uF/Ceramic×3, Cout=47uF/Ceramic×4 + POScap LOW ESR 330uF. Test Board Information:
80mm×80mm×1.6mm, 4 layers.
NOTES:
The output ripple and transient response are measured by short loop probing and limited to 20MHz bandwidth.
The following figures are the typical characteristic curves at 1.2Vout.
FIG.9 EFFICIENCY V.S. LOAD CURRENT
(VIN=12V, VOUT=1.2V)
FIG.10 DE-RATING CURVE
(VIN=12V, VOUT=1.2V)
FIG.11 OUTPUT RIPPLE
(VIN=12V, IOUT=0A)
FIG.12 OUTPUT RIPPLE
(VIN=12V, IOUT=20A)
FIG.13 TRANSIENT RESPONSE
(VIN=12V, 50% to 100% LOAD STEP)
FIG.14 TURN-ON
(VIN=12V, IOUT=20A)
7
HP2403
High Efficiency DC\DC Power Module
TYPICAL PERFORMANCE CHARACTERISTICS: (VOUT=1.8V)
Conditions: Cin=22uF/Ceramic×3, Cout=47uF/Ceramic×4 + POScap LOW ESR 330uF. Test Board Information:
80mm×80mm×1.6mm, 4 layers.
NOTES:
The output ripple and transient response are measured by short loop probing and limited to 20MHz bandwidth.
The following figures are the typical characteristic curves at 1.8Vout.
FIG.15 EFFICIENCY V.S. LOAD CURRENT
(VIN=12V, VOUT=1.8V)
FIG.16 DE-RATING CURVE
(VIN=12V, VOUT=1.8V)
FIG.17 OUTPUT RIPPLE
(VIN=12V, IOUT=0A)
FIG.18 OUTPUT RIPPLE
(VIN=12V, IOUT=20A)
FIG.19 TRANSIENT RESPONSE
(VIN=12V, 50% to 100% LOAD STEP)
FIG.20 TURN-ON
(VIN=12V, IOUT=20A)
8
HP2403
High Efficiency DC\DC Power Module
TYPICAL PERFORMANCE CHARACTERISTICS: (VOUT=2.5V)
Conditions: Cin=22uF/Ceramic×3, Cout=47uF/Ceramic×4 + POScap LOW ESR 330uF. Test Board Information:
80mm×80mm×1.6mm, 4 layers.
NOTES:
The output ripple and transient response are measured by short loop probing and limited to 20MHz bandwidth.
The following figures are the typical characteristic curves at 2.5Vout.
FIG.21 EFFICIENCY V.S. LOAD CURRENT
(VIN=12V, VOUT=2.5V)
FIG.22 DE-RATING CURVE
(VIN=12V, VOUT=2.5V)
FIG.23 OUTPUT RIPPLE
(VIN=12V, IOUT=0A)
FIG.24 OUTPUT RIPPLE
(VIN=12V, IOUT=20A)
FIG.25 TRANSIENT RESPONSE
(VIN=12V, 50% to 100% LOAD STEP)
FIG.26 TURN-ON
(VIN=12V, IOUT=20A)
9
HP2403
High Efficiency DC\DC Power Module
TYPICAL PERFORMANCE CHARACTERISTICS: (VOUT=3.3V)
Conditions: Cin=22uF/Ceramic×3, Cout=47uF/Ceramic×4 + POScap LOW ESR 330uF. Test Board Information:
80mm×80mm×1.6mm, 4 layers.
NOTES:
The output ripple and transient response are measured by short loop probing and limited to 20MHz bandwidth.
The following figures are the typical characteristic curves at 3.3Vout.
FIG.27 EFFICIENCY V.S. LOAD CURRENT
(VIN=12V, VOUT=3.3V)
FIG.28 DE-RATING CURVE
(VIN=12V, VOUT=3.3V)
FIG.29 OUTPUT RIPPLE
(VIN=12V, IOUT=0A)
FIG.30 OUTPUT RIPPLE
(VIN=12V, IOUT=20A)
FIG.31 TRANSIENT RESPONSE
(VIN=12V, 50% to 100% LOAD STEP)
FIG.32 TURN-ON
(VIN=12V, IOUT=20A)
10
HP2403
High Efficiency DC\DC Power Module
TYPICAL PERFORMANCE CHARACTERISTICS: (VOUT=5.0V)
Conditions: Cin=22uF/Ceramic×3, Cout=47uF/Ceramic×4 + POScap LOW ESR 330uF. Test Board Information:
80mm×80mm×1.6mm, 4 layers.
NOTES:
The output ripple and transient response are measured by short loop probing and limited to 20MHz bandwidth.
The following figures are the typical characteristic curves at 5.0Vout.
FIG.33 EFFICIENCY V.S. LOAD CURRENT
(VIN=12V, VOUT=5.0V)
FIG.34 DE-RATING CURVE
(VIN=12V, VOUT=5.0V)
FIG.35 OUTPUT RIPPLE
(VIN=12V, IOUT=0A)
FIG.36 OUTPUT RIPPLE
(VIN=12V, IOUT=20A)
FIG.37 TRANSIENT RESPONSE
(VIN=12V, 50% to 100% LOAD STEP)
FIG.38 TURN-ON
(VIN=12V, IOUT=20A)
11
HP2403
High Efficiency DC\DC Power Module
APPLICATIONS INFORMATION:
REFERENCE CIRCUIT FOR GENERAL APPLICATION:
The FIG. 39 shows the HP2403 application schematics for input voltage +12V.
Condition:
VIN = 12V , VOUT = 1.8V , IOUT = 20A
Ci1 = 3 x 22uF / 25V , Co1 = 330uF / 6.3V , Co2 = 4 x 47uF / 6.3V
RTrim = 5k ohm
FIG.39 TYPICAL APPLICATION CIRCUIT
Safety Consideration
Certain applications and/or safety agencies may require fuses at the inputs of power conversion
components. Fuses should also be used when there is the possibility of sustained input voltage reversal
which is not current limited. For greatest safety, we recommend a fast blow fuse installed in the
ungrounded input supply line. The installer must observe all relevant safety standards and regulations.
For safety agency approvals, install the converter in compliance with the end-user safety standard.
INPUT FILTERING:
The module should be contacted to as low AC impedance source supply and a highly inductive source
or line inductance can affect the stability of the module. An input capacitor must be placed directly to
the input pin of the module, to minimize input ripple voltage and ensure module stability.
12
HP2403
High Efficiency DC\DC Power Module
APPLICATIONS INFORMATION: (Cont.)
OUTPUT FILTERING:
To reduce output ripple and improve the dynamic response to as step load change, the additional
capacitor at the output must be used. Low ESR polymer and ceramic capacitors are recommended to
improve the output ripple and dynamic response of the module.
Pre-Bias Startup:
The HP2403 contains a circuit to prevent current from being pulled from the output during startup in
the condition the output is pre-biased. There are on PWM pulses until the internal soft-start voltage
rises above the error amplifier input, if the output is pre-biased. Once the soft-start voltage exceeds the
error amplifier input, the controller slowly initiates synchronous rectification by starting the
synchronous rectifier with narrow on time. It then increments that on time on a cycle-by-cycle basis
until it coincides with the time dictated by (1-D), where the D is duty cycle of the converter. This
approach prevents the sinking of current from a pre-biased output, and ensures the output voltage
startup and ramp to regulation is smooth and controlled.
Power Good:
The HP2403 provides an indication that output is good for the converter. This is an open drain signal and
pulls low if any condition exists such as VTRIM is more than +/- 12.5% from nominal, soft-start is active,
and short circuit condition has been detected. The PGOOD terminal should be connected through a pull
up resistor (suggested value is 50Kohm) to a source of 5VDC.
Overcurrent Protection:
The over-current function protects the converter from a shorted output by using the low side MOSFET
on-resistance, RDS(ON), to monitor the current. When the protection is triggered, the module enters
hiccup mode. The module operates normally once the fault is removed.
Over Temperature Protection:
If the junction temperature of the HP2403 reaches the thermal shutdown limit of 145℃, the PWM and
the oscillator are turned off and H/L MOSFET are driven low. When the junction cools to the required
level (125℃ typical), the PWM initiates soft start as during a normal power up cycle.
13
HP2403
High Efficiency DC\DC Power Module
APPLICATIONS INFORMATION: (Cont.)
Remote Sense:
The power module has a Remote Sense feature to eliminate the distribution losses on the output line
trace and keep the regulation at loading point. In the event of an open remote sense line, the module
shall maintain local sense regulation through an internal resistor.
Remote ON/OFF:
The HP2403 power module has an ON/OFF pin for remote ON/OFF operation. Both positive and
negative ON/OFF logic options are available.
For negative logic option, the circuit configuration is shown in FIG.40. The ON/OFF pin should be pull
high with an external pull-up resistor (suggested value is 50k ohm for 4.5V to 14.5V input range).
When the Q1 is in the OFF state, the ON/OFF pin is pulled high and the module is OFF. To turn the
module ON, Q1 is turned ON pulling the ON/OFF pin low.
FIG.40 CIRCUIT FOR NEGATIVE ON/OFF LOGIC
14
HP2403
High Efficiency DC\DC Power Module
APPLICATIONS INFORMATION: (Cont.)
Output Voltage Programming:
The HP2403 has an internal 0.6V reference voltage, It only programs the dividing resistance RTRIM
which respects to TRIM pin and GND. The output voltage can be calculated as shown in Equation 1 and
the resistance according to typical output voltage is shown in TABLE 1.
(Note：internal resistance was 10k ohm ± 0.5%)
æ
10k ö
÷÷
VOUT = 0.6 ´ çç1 +
R
è
TRIM ø
(EQ.1)
VOUT
1.0V
1.2V
1.5V
1.8V
2.5V
3.3V
5V
RTrim(ohm)
15k
10k
6.667k
5k
3.158k
2.222k
1.364k
TABLE 1
15
HP2403
High Efficiency DC\DC Power Module
APPLICATIONS INFORMATION: (Cont.)
Thermal Considerations:
All of thermal testing condition is complied with JEDEC EIJ/JESD 51 Standards. Therefore, the test
board size is 80mm×80mm×1.6mm with 4 layers. The case temperature of module sensing point is
shown as Figure 41. Then Rth(jchoke-a) is measured with the component mounted on an effective thermal
conductivity test board on 0 LFM condition. The HP2403 module is designed for using when the case
temperature is below 110°C regardless the change of output current, input/output voltage or ambient
temperature.
Figure 41. Case Temperature Sensing Point
16
HP2403
High Efficiency DC\DC Power Module
PACKAGE OUTLINE DRAWING:
Unit: mm
General Tolerances:±0.2mm
17
HP2403
High Efficiency DC\DC Power Module
LAND PATTERN REFERENCE:
Unit: mm
General Tolerances:±0.2mm
TOP VIEW
TYPICAL RECOMMENDED LAND PATTERN
TOP VIEW
STENCIL PATTERN WITH SQUIRE PADS (STENCIL t=120μm)
18
HP2403
High Efficiency DC\DC Power Module
MARKING DRAWING:
PIN 1
PIN 1
TOP VIEW
BOTTOM VIEW
Marking note:
1. Circle represents the position of PIN1
2. HP2403 represents the Product Name
3. 2HPYYMDDXX represents the Lot Number
19
HP2403
High Efficiency DC\DC Power Module
PACKING INFORMATION:
Unit: mm
PACKAGE IN TAPE LOADING ORIENTATION
TAPE DIMENSION
A0
B0
K0
13 ± 0.10
13 ± 0.10
8.55 ± 0.10
20
HP2403
High Efficiency DC\DC Power Module
PACKING INFORMATION: (Cont.)
Unit: mm
Reel Dimension
W1=24.8 +0.6/-0.4
W2=30.2 (MAX.)
Peel Strength of Top Cover Tape
The peel speed shall be about 300mm/min.
The peel force of top cover tape shall between 0.1N to 1.3N
Top Cover Tape
0.1N~1.3N
165~180°
21
HP2403
High Efficiency DC\DC Power Module
REVERSION HISTORY:
Date
Revision
Changes
2014.01.10
00
Release the preliminary specification.
2014.10.24
01
Adding POD, packing information.
2014.12.05
02
2014.12.17
03
2015.01.06
04
2015.02.04
05
Change output range, adding pinout description and test
condition information.
PACKAGE OUTLINE DRAWING
l
END VIEW
Hmax. 8.4 -> 8±0.4
Add MARKING DRAWING
PACKING INFORMATION
PIN 1 ，Top left corner -> Top right corner
1. Thermal Considerations:
l
Add Thermal Considerations
l
Add Case Temperature Sensing Point
2. PACKAGE OUTLINE DRAWING
2015.02.26
06
l
Tolerances:±0.2mm -> General Tolerances:±0.2mm
l
Modify Drawing
3. LAND PATTERN REFERENCE
l
Add General Tolerances ±0.2mm
l
Modify Drawing
4. Update electrical specifications and applications information
1. Change MSL level from level 2a to level 2
2015.04.24
07
2. Change Output voltage set point tolerance from ±2% to
±1% and added output ripple and dynamic characteristics MAX
values
2015.05.22
08
1. Change MSL level from level 2 to level 2a
22