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PTH12020WAS

Part # PTH12020WAS
Description DC/DC CONVERTER 1.2-5.5V 99W
Category CONVERTER
Availability In Stock
Qty 26
Qty Price
1 - 5 $31.47371
6 - 10 $25.03591
11 - 16 $23.60528
17 - 21 $21.93622
22 + $19.55185
Manufacturer Available Qty
Texas Instruments
Date Code: 0518
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Technical Document


DISCLAIMER: The information provided herein is solely for informational purposes. Customers must be aware of the suitability of this product for their application, and consider that variable factors such as Manufacturer, Product Category, Date Codes, Pictures and Descriptions may differ from available inventory.

www.ti.com
18-A, 12-V INPUT NON-ISOLATED WIDE-OUTPUT
FEATURES
APPLICATIONS
NOMINAL SIZE = 1.5 in x 0.87 in
(38,1 mm x 22,1 mm)
DESCRIPTION
PTH12020W/L
SLTS208E–MAY 2003 – REVISED OCTOBER 2005
ADJUST POWER MODULE
• Point-of-Load Alliance (POLA™) Compatible
• Up to 18 A Output Current
• 12-V Input Voltage
• Complex multi-voltage, multi-processor
• Wide-Output Voltage Adjust (1.2 V to
systems
5.5 V)/(0.8 V to 1.8 V)
• Efficiencies up to 95%
• 195 W/in
3
Power Density
• On/Off Inhibit
• Output Voltage Sense
• Pre-Bias Startup
• Under-Voltage Lockout
• Auto-Track™ Sequencing
• Margin Up/Down Controls
• Output Over-Current Protection
(Non-Latching, Auto-Reset)
• Over-Temperature Protection
• Operating Temperature: –40°Cto85°C
• Safety Agency Approvals: UL/cUL 60950,
EN60950 VDE
The PTH12020 series of non-isolated power modules offers OEM designers a combination of high performance,
small footprint, and industry leading features. As part of a new class of power modules, these products provide
designers with the flexibility to power the most complex multi-processor digital systems using off-the-shelf catalog
parts.
The series employs double-sided surface mount construction and provides highperformance step-down power
conversion for up to 18 A of output current from a 12-V input bus voltage. The output voltage of the W-suffix
parts can be set to any value over the range, 1.2 V to 5.5 V. The L-suffix parts have an adjustment range of
0.8 V to 1.8 V. The output voltage is set using a single resistor.
This series includes Auto-Track™ sequencing. Auto-Track sequencing simplifies the task of supply voltage
sequencing in a power system by enabling modules to track each other, or any external voltage, during power up
and power down.
Other operating features include an on/off inhibit, output voltage adjust (trim), margin up/down controls, and the
ability to start up into an existing output voltage or prebias. For improved load regulation, an output voltage sense
is provided. A non-latching over-current trip and overtemperature shutdown feature protects against load faults.
Target applications include complex multivoltage, multiprocessor systems that incorporate the industry's
high-speed DSPs, microprocessors and bus drivers.
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas
Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
POLA, TMS320 are trademarks of Texas Instruments.
PRODUCTION DATA information is current as of publication date.
Copyright © 2003–2005, Texas Instruments Incorporated
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
www.ti.com
PTH12020x
(Top Vi ew)
1
2
10 9 8
7
6
54
3
GND
GND
L
O
A
D
Track
Margin Down
Margin Up
V
IN
Inhibit
V
OUT
V
O
Sense
R
SET
+
C
IN
560 mF
(Required)
+
C
OUT
330 mF
(Optional)
PTH12020W/L
SLTS208E–MAY 2003 – REVISED OCTOBER 2005
These devices have limited built-in ESD protection. The leads should be shorted together or the device
placed in conductive foam during storage or handling to prevent electrostatic damage to the MOS gates.
STANDARD APPLICATION
ORDERING INFORMATION
PTH12020 (Base Part Number)
Output Voltage Range Part Number
(1)
DESCRIPTION Pb – Free and RoHS Mechanical Package
(2)
PTH12020WAH Horizontal T/H Yes
(3)
EUK
1.2 V–5.5 V (Adjustable) PTH12020WAS Standard SMD No
(4)
EUL
PTH12020WAZ Optional SMD Yes
(3)
EUL
PTH12020LAH Horizontal T/H Yes
(3)
EUK
0.8 V–1.8 V (Adjustable) PTH12020LAS Standard SMD No
(4)
EUL
PTH12020LAZ Optional SMD Yes
(3)
EUL
(1) Add T to end of part number for tape and reel on SMD packages only.
(2) Reference the applicable package reference drawing for the dimensions and PC board layout.
(3) Lead (Pb) – free option specifies Sn/Ag pin solder material.
(4) Standard option specifies 63/37, Sn/Pb pin solder material.
2
www.ti.com
ABSOLUTE MAXIMUM RATINGS
ELECTRICAL CHARACTERISTICS
PTH12020W/L
SLTS208E–MAY 2003 – REVISED OCTOBER 2005
over operating free-air temperature range unless otherwise noted
(1)
UNIT
V
track
Track input –0.3V to V
I
+0.3 V
V
inh
Inhibit control input –0.3Vto7V
T
A
Operating temperature Over V
I
Range –40°C to 85°C
range
Surface temperature of module body or pins PTH12020WAH 260°C
(2)
T
wave
Wave solder temperature
(5 seconds)
PTH12020WAS 235°C
(2)
T
reflow
Solder reflow temperature Surface temperature of module body or pins
PTH12020WAZ 260°C
(2)
T
so
Storage temperature –40°C to 125°C
Mechanical shock Per Mil-STD-883D, Method 2002.3 1 msec, 1/2 Sine, mounted 500 G
Mechanical vibration Mil-STD-883D, Method 2007.2 20-2000 Hz 20 G
Weight 7 grams
Flammability Meets UL 94V-O
(1) Stresses beyond those listed under absolute maximum ratings may cause permanent damage to the device. These are stress ratings
only, and functional operation of the device at these or any other conditions beyond those indicated under recommended operating
conditions is not implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.
(2) During soldering of package version, do not elevate peak temperature of the module, pins or internal components above the stated
maximum.
T
A
=25°C, V
I
=12 V, V
O
= 3.3 V, C
I
= 560 µF, C
O
=0µF, and I
o
=I
omax
) (unless otherwise noted)
PTH12020W
PARAMETER TEST CONDITIONS UNIT
MIN TYP MAX
60°C, 200 LFM airflow 0 18
(1)
I
O
Output current A
25°C, natural convection 0 18
(1)
V
in
Input voltage range Over I
o
range 10.8 13.2 V
V
o
tol Set-point voltage tolerance ±2
(2)
%V
o
∆Reg
temp
Temperature variation –40°C<T
A
<85°C ±0.5 %V
o
∆Reg
line
Line regulation Over V
in
range ±5 mV
∆Reg
load
Load regulation Over I
o
range ±5 mV
∆Reg
tot
Total output variation Includes set-point, line, load, –40°C ≤ T
A
≤ 85°C ±3
(2)
%V
o
∆V
adj
Output voltage adjust range Over V
in
range 1.2 5.5 V
R
SET
= 280 Ω,V
o
= 5.0 V 95%
R
SET
=2.0kΩ,V
o
= 3.3 V 93%
R
SET
=4.32kΩ,V
o
= 2.5 V 92%
η Efficiency I
O
=12A
R
SET
= 11.5 kΩ,V
o
= 1.8 V 90%
R
SET
= 24.3 kΩ,V
o
= 1.5 V 88%
R
SET
= open ckt., V
o
= 1.2 V 86%
Vo ≤ 2.5 V 32 mVpp
V
r
Transient response 20 MHz bandwidth
Vo > 2.5 V 1 %V
o
I
o
trip Over-current threshold Reset, followed by auto-recovery 30 A
t
tr
Recovery time 70 µSec
1 A/µs load step, 50 to
Transient response
100% I
o
max,C
out
=330 µF
∆V
tr
V
o
over/undershoot 70 mV
∆V
o
margin Margin up/down adjust ±5%
I
IL
margin Margin input current (pins 9 /10) Pin to GND –8
(3)
µA
I
IL
track Track input current (pin 8) Pin to GND –0.13
(3)
mA
dV
track
/dt Track slew rate capability C
out
≤ C
out
(max) 1V/ms
(1) See SOA curves or consult factory for appropriate derating.
(2) The set-point voltage tolerance is affected by the tolerance and stability of R
SET
. The stated limit is unconditionally met if RSET has a
tolerance of 1%, with 100 ppm/°C or better temperature stability.
(3) A small low-leakage (<100 nA) MOSFET is recommended to control this pin. The open-circuit voltage is less than 1 Vdc.
3
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