PTH12030W/L
www.ti.com .................................................................................................................................................... SLTS211H – MAY 2003 – REVISED DECEMBER 2008
26-A, 12-V INPUT NON-ISOLATED WIDE-OUTPUT
ADJUST POWER MODULE
FEATURES
APPLICATIONS
• Up to 26 A Output Current
• 12-V Input Voltage
• Wide-Output Voltage Adjust
(1.2 V to 5.5 V) / (0.8 V to 1.8 V)
• Efficiencies up to 94%
• 235 W/in3 Power Density
• On/Off Inhibit
• Output Voltage Sense
• Prebias Startup
• Margin Up/Down Controls
• Dual-Phase Topology
• Auto-Track™ Sequencing
• Undervoltage Lockout
• Output Overcurrent Protection
(Non-Latching, Auto-Reset)
• Overtemperature Protection
• Operating Temperature: –40°C to 85°C
• Safety Agency Approvals:
UL/IEC/CSA-C22.2 60950-1
• Point of Load Alliance (POLA) Compatible
•
1
2
Multi-voltage, multi-processor systems
Nominal Size = 1.37 in x 1.12 in
(34,8 mm x 28,5 mm)
DESCRIPTION
The PTH12030 is a series of high current, non-isolated power module from Texas Instruments. This product is
characterized by high efficiencies, and up to 26 A of output current, while occupying a small PCB area of
1.64 in2. In terms of cost, size, and performance, the series provides OEM’s with a flexible module that meets the
requirements of the most complex and demanding mixed-signal applications. These include the most densly
populated, multiprocessor systems that incorporate the high-speed TMS320™ DSP family, microprocessors, and
ASICs.
The series uses double-sided surface mount construction and provides high-performance step-down power
conversion 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™. Auto-Track simplifies power-up and power-down supply voltage sequencing in
a system by enabling modules to track each other, or any other external voltage.
Each model also includes an on/off inhibit, output voltage adjust (trim), and margin up/down controls, and the
ability to start up into an existing prebias. An output voltage sense ensures tight load regulation, and an output
overcurrent and thermal shutdown feature provide for protection against external load faults.
Package options inlude both through-hole and surface mount configurations.
1
2
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.
Auto-Track, TMS320, POLA are trademarks of Texas Instruments.
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
Copyright © 2003–2008, Texas Instruments Incorporated
PTH12030W/L
SLTS211H – MAY 2003 – REVISED DECEMBER 2008 .................................................................................................................................................... www.ti.com
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
Margin Down
Track
Margin Up
13 12 11
1
VI
2
10
9
PTH12030x
(Top View)
3
7
4
Inhibit
VO
8
5
6
VOSense
CI
560 mF
Electrolytic
(Required)
CO
330 mF
(Optional)
RSET
GND
GND
A.
L
O
A
D
RSET = Required to set the output voltage to a value higher than the minimum value. See the Application Information
section for values.
ORDERING INFORMATION
For the most current package and ordering information, see the Package Option Addendum at the end of this datasheet, or see
the TI website at www.ti.com.
ABSOLUTE MAXIMUM RATINGS
Over operating free-air temperature range, all voltages are with respect to GND (unless otherwise noted)
MIN
VTrack
Track pin voltage
TA
Operating Temperature
Range
Over VI range
Twave
Wave solder temperature
Surface temperature of module body or pins
(5seconds maximum)
V
–40
85
260
PTH12030WAS
235
(1)
PTH12030WAZ
260
(1)
Tstg
Storage Temperature
Storage temperature of module removed from shipping package
Tpkg
Packaging temperature
Shipping Tray or Tape and Reel storage or bake temperature
Mechanical Shock
Per Mil-STD-883D, Method 2002.3, 1 ms, 1/2 Sine, mounted
Mechanical Vibration
Mil-STD-883D, Method 2007.2 20-2000 Hz
Weight
2
UNIT
VI + 0.3
PTH12030WAD
Solder reflow temperature Surface temperature of module body or pins
(1)
TYP
PTH12030WAH
Treflow
Flammability
MAX
–0.3
–55
°C
125
45
500
G
15
G
10
grams
Meets UL 94V-O
During soldering of package version, do not elevate peak temperature of the module, pins, or internal components above the stated
maximum.
Submit Documentation Feedback
Copyright © 2003–2008, Texas Instruments Incorporated
Product Folder Link(s): PTH12030W/L
PTH12030W/L
www.ti.com .................................................................................................................................................... SLTS211H – MAY 2003 – REVISED DECEMBER 2008
ELECTRICAL CHARACTERISTICS
TA = 25°C, VI = 12 V, VO = 3.3 V, CI = 560 µF, CO = 0 µF, and IO = IOmax (unless otherwise stated)
PTH12030W
CHARACTERISTICS
CONDITIONS
MIN
TYP
0
26 (1)
25°C, natural convection
0
26 (1)
IO
Output current
VI
Input voltage range
VO tol
Set-point voltage tolerance
∆Regtemp
Temperature variation
–40°C < TA < 85°C
∆Regline
Line regulation
Over VI range
±5
∆Regload
Load regulation
Over IO range
±5
Over lO range
10.2
Total qutput variation
Includes set-point, line, load, –40 °C ≤ TA ≤ 85 °C
∆Vadj
VO adjust range
Over VI range
Efficiency
IO trip
ttr
∆Vtr
IO = 18 A
VO = 5 V
94.5%
RSET = 2 kΩ
VO = 3.3 V
92.7%
RSET = 4.32 kΩ
VO = 2.5 V
91.4%
RSET = 11.5 kΩ
VO = 1.8 V
89.5%
RSET = 24.3 kΩ
VO = 1.5 V
88.2%
RSET = open circuit VO = 1.2 V
86.2%
VO ripple (peak-to-peak)
20-MHz bandwidth
Overcurrent threshold
Reset, followed by auto-recovery
Transient response
1 A/µs load step,
50 to 100% IOmax, CO= 330 µF
Margin control (pins 12&13)
All Voltages
Pin to GND
CO ≤ CO(max)
UVLO
Undervoltage lockout
mV
(2)
%VO
5.5
V
A
Recovery Time
50
µS
VO over/undershoot
150
mV
-8 (3)
Track slew rate capability
mV
mVPP
±5%
Track input current (pin 11)
%VO
50
Margin input current, Pin to GND
dVtrack/dt
V
%VO
25
Margin up/down adjust
IIL track
Inhibit
control
(pin 4)
RSET = 280 Ω
A
13.8
±3
1.2
UNIT
±2 (2)
±0.5
∆Regtot
η
MAX
60°C, 200 LFM airflow
µA
-0.13
VI increasing
9.5
VI decreasing
8.5
(4)
µA
1
V/ms
V
Input high voltage (VIH)
Referenced to GND
2.5
Open (5)
Input low voltage (VIL)
Referenced to GND
–0.2
0.5
V
Input low current (IIL)
Pin 4 to GND
0.5
µA
II inh
Input standby current
Inhibit (pin 4) to GND, track (pin 11) VI
10
mA
fs
Switching frequency
Over VI and IO ranges
CI
External input capacitance
CO
External output capacitance
475
Capacitance value
nonceramic
0
ceramic
0
(1)
(2)
(3)
(4)
(5)
(6)
(7)
(8)
(9)
Reliability
675
(7)
(8)
Bellcore TR-332, 50% stress, TA=40°C, ground benign
kHz
µF
330
7,150
300
4 (9)
Equiv. series resistance (nonceramic)
MTBF
575
560 (6)
3
µF
mΩ
106 Hrs
See SOA curves or consult factory for appropriate derating.
The set-point voltage tolerance is affected by the tolerance and stability of RSET. The stated limit is unconditionally met if RSET has a
tolerance of 1 %, with 100 ppm/°C (or better) temperature stability.
A small, low-leakage (