Rset = Required to set the output voltage to a value
higher than 0.8 V. (See spec. table for values)
Cin = Required 100 µF
Co 1 = Optional 100 µF capacitor
Co
2
= Optional 10 µF ceramic capacitor for reduced
output ripple.
Track
1
2
6
V
OUT
V
IN
3
4
ATH06T033-9S
5
Co
1
100 µF
Electrolytic
(Optional)
Co
2
10 µF
Ceramic
(Optional)
PTH03050W
(Top View)
C
IN
100 µF
(Required)
R
SET
1 %, 0.1 W
(Required)
Inhibit
GND
GND
North America (USA): 1-888-41-ASTEC
Europe (UK): 44(1384)842-211
Asia (HK): 852-2437-9662
ATH06T033 Series —3.3-V Input
6-A, 3.3-V Input Non-Isolated
Wide-Output Adjust Power Module
REVISION 00 (01DEC2003)
Ordering Information
Input Voltage
2.95V to 3.65V
Options:
“-J”
“-SJ”
“-S”
-
-
-
Output Voltage
0.8
1
to 2.5V
Output Current
6A
Model Number
ATH06T033-9(S)(J)
Through-hole Termination, Tray Packaging
SMT Termination, Tray Packaging
SMT Termination, T&R Packaging
Notes:
1
Preset output voltage is 0.8V; externally adjustable to 2.5V through the Vo,Adjust pin
Pin Descriptions
Vin:
The positive input voltage power node to the mod-
ule, which is referenced to common
GND.
Vout:
The regulated positive power output with respect
to the
GND
node.
GND:
This is the common ground connection for the
Vin
and
Vout
power connections. It is also the 0 VDC
reference for the control inputs.
Vo Adjust:
A 0.1 W 1 % resistor must be directly connected
between this pin and
GND
to set the output voltage to
a value higher than 0.8 V. The temperature stability of
the resistor should be 100 ppm/°C (or better). The set-
point range for the output voltage is from 0.8 V to 2.5 V.
The resistor value required for a given output voltage
may be calculated from the following formula. If this
pin is left open circuit, the output voltage will default to
its lowest value. For further information on output volt-
age adjustment consult the related application note.
R
set
= 10 kΩ ·
0.8 V
V
out
– 0.8 V
– 2.49 kΩ
Inhibit:
The Inhibit pin is an open-collector/drain negative
logic input that is referenced to
GND.
Applying a low-
level ground signal to this input disables the module’s
output and turns off the output voltage. When the
Inhibit
control is active, the input current drawn by the regula-
tor is significantly reduced. If the
Inhibit
pin is left
open-circuit, the module will produce an output when-
ever a valid input source is applied.
Track:
This is an analog control input that allows the
output voltage to follow another voltage during power-
up and power-down sequences. The pin is active from
0 V up to the nominal set-point voltage. Within this
range the module’s output will follow the voltage at the
Track
pin on a volt-for-volt basis. When the control volt-
age is raised above this range, the module regulates at its
nominal output voltage. If unused, this input may be left
unconnected. For further information consult the related
application note.
ADVANCE INFORMATION
The specification table gives the preferred resistor values
for a number of standard output voltages.
North America (USA): 1-888-41-ASTEC
Europe (UK): 44(1384)842-211
Asia (HK): 852-2437-9662
ATH06T033 Series —3.3-V Input
6-A, 3.3-V Input Non-Isolated
Wide-Output Adjust Power Module
Environmental & Absolute Maximum Ratings
Characteristics
Track Input Voltage
Operating T
emperature Range
Solder Reflow Temperature
Storage Temperature
Mechanical Shock
Mechanical Vibration
Weight
Flammability
—
—
Symbols
V
track
T
a
T
reflow
T
s
(Voltages are with respect to GND)
Min
–0.3
–40
(i)
–40
—
—
—
—
Typ
—
—
—
TBD
TBD
TBD
2.9
Max
V
in
+ 0.3
85
235
(ii)
125
—
—
—
—
Units
V
°C
°C
°C
G’s
G’s
grams
Conditions
Over V
in
Range
Surface temperature of module body or pins
—
Per Mil-STD-883D, Method 2002.3
1 msec, ½ Sine, mounted
Mil-STD-883D, Method 2007.2
Suffix H
20-2000 Hz
Suffix S
Meets UL 94V-O
Notes:
(i) For operation below 0 °C the external capacitors m ust bave stable characteristics. use either a low ESR tantalum, Os-Con®, or ceramic capacitor.
(ii) During reflow of SMD package version do not elevate peak temperature of the module, pins or internal components above the stated maximum.
Specifications
(Unless otherwise stated, T
a
=25 °C, V
in
=3.3 V, V
o
=2.5 V, Co
in
=100 µF, Co
1
=0 µF, Co
2
=0 µF, and I
o
=I
o
max)
Symbols
I
o
V
in
V
o
tol
∆Reg
temp
∆Reg
line
∆Reg
load
∆Reg
tot
η
Conditions
0.8 V
≤
V
o
≤
2.5 V,
Over I
o
range
85 °C, natural convection
Min
0
2.95
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
5
—
3.4
V
in
–0.5
–0.2
—
—
550
100
(5)
0
TBD
ADVANCE INFORMATION
Characteristics
Output Current
Input Voltage Range
Set-Point Voltage T
olerance
Temperature Variation
Line Regulation
Load Regulation
Total Output Variation
Efficiency
ATH06T033
Typ
—
—
—
±0.5
±10
±12
—
94
92
91
90
88
87
20
(3)
12
70
100
—
—
4.3
3.7
—
—
–130
10
600
—
100
(6)
—
Max
6
(1)
3.65
±2
(2)
—
—
—
±3
—
—
—
—
—
—
—
—
—
—
–130
—
4.45
—
Open
0.6
—
—
650
—
TBD
—
(2)
Units
A
V
%V
o
%V
o
mV
mV
%V
o
V
o
Ripple (pk-pk)
Over-Current Threshold
Transient Response
V
r
I
o
trip
t
tr
∆V
tr
I
IL
track
dV
track
/dt
UVLO
V
IH
V
IL
I
IL
inhibit
I
in
inh
ƒ
s
C
in
C
out
MTBF
Track Input Current (pin 2)
Track Slew Rate Capability
Under-Voltage Lockout
Inhibit Control (pin4)
Input High Voltage
Input Low Voltage
Input Low Current
Input Standby Current
Switching Frequency
External Input Capacitance
External Output Capacitance
Reliability
–40 °C <T
a
< +85 °C
Over V
in
range
Over I
o
range
Includes set-point, line, load,
–40 °C
≤
T
a
≤
+85 °C
R
SET
= 2.21 kΩ V
o
=
2.5 V
I
o
=4 A
R
SET
= 4.12 kΩ V
o
=
2.0 V
R
SET
= 5.49 kΩ V
o
=
1.8 V
R
SET
= 8.87 kΩ V
o
=
1.5 V
R
SET
= 17.4 kΩ V
o
=
1.2 V
R
SET
= 36.5 kΩ V
o
=
1.0 V
20 MHz bandwidth, Co
2
=10 µF ceramic
Reset, followed by auto-recovery
1 A/µs load step, 50 to 100 % I
o
max,
Co
1
=100 µF
Recovery Time
V
o
over/undershoot
Pin to GND
V
track
– V
o
≤
50 mV and V
track
< V
o
(nom)
V
in
increasing
V
in
decreasing
Referenced to GND
Pin to GND
Inhibit (pin 4) to GND, Track (pin 2) open
Over V
in
and I
o
ranges
%
mVpp
A
µSec
mV
µA
V/ms
V
(4)
(4)
V
µA
mA
kHz
µF
µF
10
6
Hrs
Per Bellcore TR-332
50 % stress, T
a
=40 °C, ground benign
Notes:
(1) No derating is required when the module is soldered directly to a 4-layer PCB with 1 oz. copper.
(2) The set-point voltage tolerance is affected by the tolerance and stability ofR
SET
. The stated limit is unconditionally met if R
SET
has a tolerance of 1 %
with 100 ppm/°C or better temperature stability.
(3) The pk-pk output ripple voltage is measured with an external 10 µF ceramic capacitor. See the standard application schematic.
(4) This control pin has an internal pull-up to the input voltage Vin. If it is left open-circuit the module will operate when input power is applied. A small
low-leakage (<100 nA) MOSFET is recommended for control. For further information, consult the related application note.
(5) A 100 µF input capacitor is required for proper operation. The capacitor must be rated for a minimum of 300 mA rms of ripple current.
(6) An external output capacitor is not required for basic operation. Adding 100 µF of distributed capacitance at the load will improve the transient response.
North America (USA): 1-888-41-ASTEC
Europe (UK): 44(1384)842-211
Asia (HK): 852-2437-9662
ATH06T033 Series —3.3-V Input
6-A, 3.3-V Input Non-Isolated
Wide-Output Adjust Power Module
Typical Characteristics
Characteristic Data; V
in
=3.3 V
Efficiency vs Load Current
100
(See Note A)
90
V
OUT
2.5 V
1.8 V
1.5 V
1.2 V
1.0 V
Efficiency - %
80
70
60
50
0
1
2
3
4
5
6
Iout - Amps
Output Ripple vs Load Current
(See Note 3 to Table)
50
40
V
OUT
1.8 V
1.5 V
1.2 V
1.0 V
2.5 V
ADVANCE INFORMATION
Ripple - mV
30
20
10
0
0
1
2
3
4
5
6
Iout - Amps
Power Dissipation vs Load Current
1.2
1
0.8
Pd - Watts
0.6
0.4
0.2
0
0
1
2
3
4
5
6
Iout - Amps
The products listed hereunder are prototype or pre-production devices which have not been fully qualified to Astec’s
specifications. Product specifications are subject to change without notice. Astec makes no warranty, either expressed,
implied, or statutory, including implied warranty of merchantability or fitness for a specific purpose, of these products.
Note A:
Characteristic data has been developed from actual products tested at 25°C. This data is considered typical data for the Converter.
North America (USA): 1-888-41-ASTEC
Europe (UK): 44(1384)842-211
Asia (HK): 852-2437-9662
Application Notes
ATH06T033 & ATH06T05 Series
Adjusting the Output Voltage of the ATH06T033
& ATH06T05 Wide-Output Adjust Power Modules
The
V
o
Adjust
control (pin 5) sets the output voltage to a
value higher than 0.8 V. The adjustment range of the
ATH06T033 (3.3-V input) is from 0.8 V to 2.5 V
1
, and
the ATH06T05-9xx (5-V input) from 0.8 V to 3.6 V. The
adjustment method requires the addition of a single
external resistor, R
set
, that must be connected directly
between the
V
o
Adjust
and
GND
pins
2
. Table 1-1 gives
the preferred value of the external resistor for a number
of standard voltages, along with the actual output volt-
age that this resistance value provides.
For other output voltages the value of the required resistor
can either be calculated using the following formula, or
simply selected from the range of values given in Table 1-2.
Figure 1-1 shows the placement of the required resistor.
R
set
= 10 kΩ ·
0.8 V
V
out
– 0.8 V
– 2.49 kΩ
Table 1-2; Output Voltage Set-Point Resistor Values
V
a
Req’d
0.800
0.825
0.850
0.875
0.900
0.925
0.950
0.975
1.000
1.025
1.050
1.075
1.100
1.125
1.150
1.175
1.200
1.225
1.250
1.275
1.300
1.325
1.350
1.375
1.400
1.425
1.450
1.475
1.50
1.55
1.60
1.65
1.70
1.75
1.80
1.85
1.90
1.95
R
set
Open
318 kΩ
158 kΩ
104 kΩ
77.5 kΩ
61.5 kΩ
50.8 kΩ
43.2 kΩ
37.5 kΩ
33.1 kΩ
29.5 kΩ
26.6 kΩ
24.2 kΩ
22.1 kΩ
20.4 kΩ
18.8 kΩ
17.5 kΩ
16.3 kΩ
15.3 kΩ
14.4 kΩ
13.5 kΩ
12.7 kΩ
12.1 kΩ
11.4 kΩ
10.8 kΩ
10.3 kΩ
9.82 kΩ
9.36 kΩ
8.94 kΩ
8.18 kΩ
7.51 kΩ
6.92 kΩ
6.4 kΩ
5.93 kΩ
5.51 kΩ
5.13 kΩ
4.78 kΩ
4.47 kΩ
V
a
Req’d
2.00
2.05
2.10
2.15
2.20
2.25
2.30
2.35
2.40
2.45
2.50
2.55
2.60
2.65
2.70
2.75
2.80
2.85
2.90
2.95
3.00
3.05
3.10
3.15
3.20
3.25
3.30
3.35
3.40
3.45
3.50
3.55
3.60
R
set
4.18 kΩ
3.91 kΩ
3.66 kΩ
3.44 kΩ
3.22 kΩ
3.03 kΩ
2.84 kΩ
2.67 kΩ
2.51 kΩ
2.36 kΩ
2.22 kΩ
2.08 kΩ
1.95 kΩ
1.83 kΩ
1.72 kΩ
1.61 kΩ
1.51 kΩ
1.41 kΩ
1.32 kΩ
1.23 kΩ
1.15 kΩ
1.07 kΩ
988
Ω
914
Ω
843
Ω
775
Ω
710
Ω
647
Ω
587
Ω
529
Ω
473
Ω
419
Ω
367
Ω
Table 1-1; Preferred Values of R
set
for Standard Output Voltages
V
out
(Standard)
3.3 V
1
2.5 V
2V
1.8 V
1.5 V
1.2 V
1V
0.8 V
R
set
(Pref’d Value)
698
Ω
2.21 kΩ
4.12 kΩ
5.49 kΩ
8.87 kΩ
17.4 kΩ
36.5 kΩ
Open
V
out
(Actual)
3.309V
2.502 V
2.010 V
1.803 V
1.504 V
1.202 V
1.005 V
0.8 V
Figure 1-1; V
o
Adjust Resistor Placement
2
Track
V
IN
3
V
IN
ATH06T05-9J
PTH05050W
GND
1
V
O
6
V
OUT
Inhibit
3
Notes:
1. Modules that operate from a 3.3-V input bus should
not be adjusted higher than 2.5 V.
2. Use a 0.1 W resistor. The tolerance should be 1 %, with
temperature stability of 100 ppm/°C (or better). Place
the resistor as close to the regulator as possible. Connect
the resistor directly between pins 5 and 1 using dedicated
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