PTH04T260W, PTH04T261W
www.ti.com.................................................................................................................................................. SLTS273E – SEPTEMBER 2006 – REVISED JULY 2009
3-A, 2.2-V to 5.5-V INPUT, NON-ISOLATED,
WIDE-OUTPUT, ADJUSTABLE POWER MODULE WITH TurboTrans™
FEATURES
1
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Up to 3-A Output Current
2.2-V to 5.5-V Input Voltage
Wide-Output Voltage Adjust (0.69 V to 3.6 V)
±1.5% Total Output Voltage Variation
Efficiencies up to 96%
Output Overcurrent Protection
(Nonlatching, Auto-Reset)
Operating Temperature: –40°C to 85°C
Safety Agency Approvals:
– UL60950, CSA 22.2 950, EN60950 VDE
Prebias Startup
On/Off Inhibit
Differential Output Voltage Remote Sense
Adjustable Undervoltage Lockout
Auto-Track™ Sequencing
Ceramic Capacitor Version (PTH04T261W)
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TurboTrans™ Technology
Designed to meet Ultra-Fast Transient
Requirements up to 300 A/µs
SmartSync Technology
APPLICATIONS
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Complex Multi-Voltage Systems
Microprocessors
Bus Drivers
DESCRIPTION
The PTH04T260/261W is a high-performance, 3-A rated, non-isolated power module. This regulator represents
the 2nd generation of the PTH series of power modules which include a reduced footprint and improved features.
The PTH04T261W is optimized to be used in applications requiring all ceramic capacitors.
Operating from an input voltage range of 2.2 V to 5.5 V, the PTH04T260/261W requires a single resistor to set
the output voltage to any value over the range, 0.69 V to 3.6 V. The wide input voltage range makes the
PTH04T260/261W particularly suitable for advanced computing and server applications that use a 2.5-V, 3.3-V or
5-V intermediate bus architecture.
The module incorporates a comprehensive list of features. Output over-current and over-temperature shutdown
protects against most load faults. A differential remote sense ensures tight load regulation. An adjustable
under-voltage lockout allows the turn-on voltage threshold to be customized. Auto-Track™ sequencing is a
popular feature that greatly simplifies the simultaneous power-up and power-down of multiple modules in a
power system.
The PTH04T260/261W includes new patent pending technologies, TurboTrans™ and SmartSync. The
TurboTrans feature optimizes the transient response of the regulator while simultaneously reducing the quantity
of external output capacitors required to meet a target voltage deviation specification. Additionally, for a target
output capacitor bank, TurboTrans can be used to significantly improve the regulators transient response by
reducing the peak voltage deviation. SmartSync allows for switching frequency synchronization of multiple
modules, thus simplifying EMI noise suppression tasks and reduces input capacitor RMS current requirements.
Double-sided surface mount construction provides a low profile and compact footprint. Package options include
both through-hole and surface mount configurations that are lead (Pb) - free and RoHS compatible.
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.
TurboTrans, TMS320 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 © 2006–2009, Texas Instruments Incorporated
PTH04T260W, PTH04T261W
SLTS273E – SEPTEMBER 2006 – REVISED JULY 2009.................................................................................................................................................. 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.
PTH04T260W
SmartSync
TurboTransE
Track
VI
2
9
1
Track
SYNC
8
TT
+Sense
VI
5
RTT
1%
0.05 W
(Optional)
+Sense
4
PTH04T260W
Inhibit
10
Vo
Vo
6
INH/UVLO
−Sense
GND
VoAdj
3
7
L
O
A
D
+
+
GND
RUVLO
1%
0.05 W
(Optional)
RSET
1%
0.05 W
(Required)
(Note A)
CI
330 µF
(Required)
(Note B)
CO1
100 µF
Ceramic
(Required)
CO2
150 µF
(Required)
−Sense
GND
UDG−06046
A.
RSET required to set the output voltage to a value higher than 0.69 V. See the Electrical Characteristics table.
B.
An additional 22-µF ceramic input capacitor is recommended to reduce RMS ripple current.
PTH04T261W - Ceramic Capacitor Version
SmartSync
TurboTransE
Track
VI
2
9
1
Track
SYNC
8
TT
+Sense
VI
5
RTT
1%
0.05 W
(Optional)
+Sense
4
PTH04T261W
Inhibit
GND
2
10
RUVLO
1%
0.05 W
(Optional)
6
INH/UVLO
CI
300 µF
(Required)
Vo
Vo
−Sense
GND
VoAdj
3
7
RSET
1%
0.05 W
(Required)
(Note A)
CO
300 µF
Ceramic
(Required)
L
O
A
D
−Sense
GND
A.
RSET required to set the output voltage to a value higher than 0.69 V. See the Electrical Characteristics table.
B.
300 µF of ceramic or 330 µF of electrolytic input capacitance is required for proper operation.
Submit Documentation Feedback
Copyright © 2006–2009, Texas Instruments Incorporated
Product Folder Link(s): PTH04T260W PTH04T261W
PTH04T260W, PTH04T261W
www.ti.com.................................................................................................................................................. SLTS273E – SEPTEMBER 2006 – REVISED JULY 2009
ORDERING INFORMATION
For the most current package and ordering information, see the Package Option Addendum at the end of this data sheet, or see
the TI website at www.ti.com.
DATASHEET TABLE OF CONTENTS
DATASHEET SECTION
PAGE NUMBER
ENVIRONMENTAL AND ABSOLUTE MAXIMUM RATINGS
3
ELECTRICAL CHARACTERISTICS TABLE (PTH04T260W)
4
ELECTRICAL CHARACTERISTICS TABLE (PTH04T261W)
6
PIN-OUT AND TERMINAL FUNCTIONS
8
TYPICAL CHARACTERISTICS (VI = 5V)
9
TYPICAL CHARACTERISTICS (VI = 3.3V)
10
ADJUSTING THE OUTPUT VOLTAGE
11
CAPACITOR RECOMMENDATIONS
13
TURBOTRANS™ INFORMATION
17
UNDERVOLTAGE LOCKOUT (UVLO)
22
SOFT-START POWER-UP
23
REMOTE SENSE
23
OUTPUT ON/OFF INHIBIT
24
OVER-CURRENT PROTECTION
24
OVER-TEMPERATURE PROTECTION
25
SYCHRONIZATION (SMARTSYNC)
25
AUTO-TRACK SEQUENCING
26
PREBIAS START-UP
28
TAPE & REEL AND TRAY DRAWINGS
30
ENVIRONMENTAL AND ABSOLUTE MAXIMUM RATINGS
(Voltages are with respect to GND)
UNIT
VTrack
Track pin voltage
–0.3 to VI + 0.3
TA
Operating temperature range Over VI range
Twave
Wave soldering temperature
Surface temperature of module body or pins
(5 seconds maximum)
Treflow
Solder reflow temperature
Surface temperature of module body or pins
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 msec, 1/2
sine, mounted
Mechanical vibration
Mil-STD-883D, Method 2007.2 20-2000 Hz
(1)
AD suffix
260
AS suffix
235 (1)
AZ suffix
260 (1)
45
500
Suffix AS and AZ
250
Suffix AD
20
Suffix AS and AZ
°C
–55 to 125
Suffix AD
Weight
Flammability
V
–40 to 85
G
15
2.7
grams
Meets UL94V-O
During reflow of surface mount package version do not elevate peak temperature of the module, pins or internal components above the
stated maximum.
Copyright © 2006–2009, Texas Instruments Incorporated
Product Folder Link(s): PTH04T260W PTH04T261W
Submit Documentation Feedback
3
PTH04T260W, PTH04T261W
SLTS273E – SEPTEMBER 2006 – REVISED JULY 2009.................................................................................................................................................. www.ti.com
ELECTRICAL CHARACTERISTICS
PTH04T260W
TA =25°C, VI = 5 V, VO = 3.3 V, CI = 330 µF, CO1 = 100 µF ceramic, CO2 = 150 µF non-ceramic, and IO = IO max (unless
otherwise stated)
PARAMETER
TEST CONDITIONS
PTH04T260W
MIN
IO
Output current
VI
Over VO range
Input voltage range
Over IO range
Output adjust range
Over IO range
25°C, natural convection
0.69 ≤ VO ≤ 1.7
1.7 < VO ≤ 3.6
η
0
3
5.5
VO+0.5 (1)
5.5
0.69
3.6
±0.5
±0.3
%Vo
Over VI range
±2
mV
Load regulation
Over IO range
±2
Total output variation
Includes set-point, line, load, –40°C ≤ TA ≤ 85°C
IO = 3 A
RSET = 1.21 kΩ, VO = 3.3 V
95%
RSET = 2.38 kΩ, VO = 2.5 V
93%
RSET = 4.78 kΩ, VO = 1.8 V
91%
RSET = 7.09 kΩ, VO = 1.5 V
90%
RSET = 12.1 kΩ, VO = 1.2 V
88%
RSET = 20.8 kΩ, VO = 1.0 V
87%
RSET = 689 kΩ, VO = 0.7 V
84%
20-MHz bandwidth
1
Overcurrent threshold
Reset, followed by auto-recovery
6
2.5 A/µs load step
50% to 100% IOmax
VI = 3.3 V
VO = 2.5 V
Track input current (pin 9)
Pin to GND
dVtrack/dt
Track slew rate capability
CO ≤ CO (max)
UVLOADJ
Adjustable Under-voltage lockout
(pin 10)
%VO
A
µSec
VO Overshoot
50
mV
w/o TurboTrans
CO1 = 100 µF ceramic
CO2 = 990 µF, Type B
Recovery Time
120
µSec
VO Overshoot
30
mV
with TurboTrans
CO1 = 100 µF ceramic
CO2 = 990 µF, Type B
RTT = 1.54 kΩ
Recovery Time
180
µSec
VO Overshoot
18
mV
(4)
-130
1.95
VI decreasing, RUVLO = OPEN
1.3
Inhibit (pin 10) to GND, Track (pin 9) open
fs
Switching frequency
Over VI and IO ranges, SmartSync (pin 1) to GND
fSYNC
Synchronization (SYNC) frequency
VSYNCH
SYNC High-Level Input Voltage
V/ms
2.19
V
Open (6)
-0.2
Input low current (IIL), Pin 10 to GND
Input standby current
µA
1
0.5
Input low voltage (VIL)
Iin
(5)
1.5
Input high voltage (VIH)
4
%VO
100
Hysteresis, RUVLO ≤ 52.3 kΩ
(6)
(3)
Recovery Time
VI increasing, RUVLO = OPEN
Inhibit control (pin 10)
mV
±1.5
VO Ripple (peak-to-peak)
IIL
(4)
(5)
V
%Vo
–40°C < TA < 85°C
Transient response
(3)
(2)
V
Line regulaltion
w/o TurboTrans
CO1 = 100 µF, ceramic
CO2 = 150 µF,
non-ceramic
(1)
(2)
±1
A
Temperature variation
Efficiency
ILIM
UNIT
MAX
2.2
Set-point voltage tolerance
VO
TYP
0.6
V
125
µA
5
mA
300
kHz
240
400
kHz
2
5.5
V
The minimum input voltage is 2.2 V or (VO + 0.5) V, whichever is greater.
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. .
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 200 ppm/C or better temperature stability.
Without TurboTrans, the minimum ESR limit of 7 mΩ must not be violated.
A low-leakage (