PTH08T220W_07 Datasheet, PDF (1/38 Pages) Texas Instruments – 16-A, 4.5-V to 14-V INPUT, NON-ISOLATED, WIDE-OUTPUT, ADJUSTABLE POWER MODULE WITH TurboTrans

PTH08T220W, PTH08T221W
www.ti.com
SLTS252F – NOVEMBER 2005 – REVISED FEBRUARY 2007
16-A, 4.5-V to 14-V INPUT, NON-ISOLATED,
WIDE-OUTPUT, ADJUSTABLE POWER MODULE WITH TurboTrans™
FEATURES
• Up to 16-A Output Current
• 4.5-V to 14-V Input Voltage
• Wide-Output Voltage Adjust (0.69 V to 5.5 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:
– UL/IEC/CSA-C22.2 60950-1
• Prebias Startup
• On/Off Inhibit
• Differential Output Voltage Remote Sense
• Adjustable Undervoltage Lockout
• Ceramic Capacitor Version (PTH08T221W)
• TurboTrans™ Technology
• Designed to meet Ultra-Fast Transient
Requirements up to 300 A/µs
• SmartSync Technology
• Auto-Track™ Sequencing
APPLICATIONS
• Complex Multi-Voltage Systems
• Microprocessors
• Bus Drivers
DESCRIPTION
The PTH08T220/221W is a high-performance 16-A rated, non-isolated power module. These modules represent
the 2nd generation of the popular PTH series power modules and include a reduced footprint and improved
features. The PTH08T221W is optimized to be used with all ceramic capacitors.
Operating from an input voltage range of 4.5 V to 14 V, the PTH08T220/221W requires a single resistor to set
the output voltage to any value over the range, 0.69 V to 5.5 V. The wide input voltage range makes the
PTH08T220/221W particularly suitable for advanced computing and server applications that utilize a loosely
regulated 8-V to 12-V intermediate distribution bus. Additionally, the wide input voltage range increases design
flexibility by supporting operation with tightly regulated 5-V, 8-V, or 12-V intermediate bus architectures.
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 PTH08T220/221W 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 reducing input capacitor RMS current requirements.
The module uses double-sided surface mount construction to provide a low profile and compact footprint.
Package options include both through-hole and surface mount configurations that are lead (Pb) - free and RoHS
compatible.
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, Auto-Track, 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 © 2005–2007, Texas Instruments Incorporated