NCP1523 Datasheet, PDF (1/35 Pages) ON Semiconductor – 3 MHz, 600 mA, High−Efficiency, Adjustable Output Voltage Stepdown Converter

PTH04T230W, PTH04T231W
www.ti.com
SLTS271A – SEPTEMBER 2006 – REVISED OCTOBER 2006
6-A, 2.2-V to 5.5-V INPUT, NON-ISOLATED,
WIDE-OUTPUT, ADJUSTABLE POWER MODULE WITH TurboTrans™
FEATURES
• Up to 6-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: (Pending)
– 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 (PTH04T231W)
• TurboTrans™ Technology
• Designed to meet Ultra-Fast Transient
Requirements up to 300 A/µs
• SmartSync Technology
APPLICATIONS
• Complex Multi-Voltage Systems
• Microprocessors
• Bus Drivers
DESCRIPTION
The PTH04T230/231W is a high-performance, 6-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 PTH04T231W 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 PTH04T230/231W 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
PTH04T230/231W 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 PTH04T230/231W 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.
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, Texas Instruments Incorporated