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15-A, 5-V Input Non-Isolated

Wide-Output Adjust Power Module

SLTS204C – MAY 2003 – REVISED DECEMBER 2003

Standard Application

Features

• Up to 15-A Output Current

• 5-V Input Voltage

• Wide-Output Voltage Adjust

(0.8 V to 3.6 V)

• Efficiencies up to 96 %

• 160 W/in³ Power Density

• On/Off Inhibit

• Output Voltage Sense

• Pre-Bias Startup

• Margin Up/Down Controls

set

= Required to set the output voltage to a value

higher than 0.8 V. (See spec. table for values)

= Required 470 µF capacitor

out

= Optional 330 µF capactitor

• Auto-Track™ Sequencing

• Under-Voltage Lockout

• Output Over-Current Protection

(Non-Latching, Auto-Reset)

• Operating Temp: –40 to +85 °C

• Safety Agency Approvals:

UL 1950, CSA 22.2 950, EN60950

VDE (Pending)

• Point-of-Load Alliance (POLA)

Compatible

PTH05010

(Top View)

Margin Up

Margin Down

470 µF

(Required)

OUT

330 µF

(Optional)

Inhibit

GND

OUT

Sense

Track

10 9 8

543

SET

(Required)

0.1 W, 1 %

Description

The PTH05010 series of non-isolated

power modules are small in size but big on

performance and flexibility. Their high

output current, compact footprint, and

industry-leading features offers system

designers a versatile module for powering

complex multi-processor digital systems.

The series employs double-sided surface

mount construction and provides high-

performance step-down power conversion

for up to 15 A of output current from a

5-V input bus voltage. The output volt-

age of the PTH05010W can be set to any

value over the range, 0.8 V to 3.6 V, using

a single resistor.

This series includes Auto-Track™.

Auto-Track 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),

and margin up/down controls. To ensure

tight load regulation, an output voltage

sense is also provided. A non-latching

over-current trip serves as load fault

protection.

Target applications include complex

multi-voltage, multi-processor systems

that incorporate the industry’s high-speed

DSPs, micro-processors and bus drivers.

Auto-Track™

Sequencing

Pin Configuration

Pin Function

1 GND

3 Inhibit *

Adjust

Sense

out

7 GND

8 Track

9 Margin Down *

10 Margin Up *

* Denotes negative logic:

Open = Normal operation

Ground = Function active

NOMINAL SIZE = 1.37 in x 0.62 in

(34,8 mm x 15,75 mm)

PTH05010W —5-V Input

Summary of content (19 pages)

PAGE 1
PTH05010W —5-V Input 15-A, 5-V Input Non-Isolated Wide-Output Adjust Power Module SLTS204C – MAY 2003 – REVISED DECEMBER 2003 Features NOMINAL SIZE = • Up to 15-A Output Current • 5-V Input Voltage • Wide-Output Voltage Adjust (0.8 V to 3.6 V) • Efficiencies up to 96 % • 160 W/in³ Power Density • On/Off Inhibit • Output Voltage Sense • Pre-Bias Startup • Margin Up/Down Controls 1.37 in x 0.
PAGE 2
PTH05010W —5-V Input 15-A, 5-V Input Non-Isolated Wide-Output Adjust Power Module SLTS204C – MAY 2003 – REVISED DECEMBER 2003 Ordering Information Output Voltage (PTH05010Hxx) Package Options (PTH05010xHH) (1) Code W Code AH AS Voltage 0.8 V – 3.6 V (Adjust) Description Horiz. T/H SMD, Standard (3) Pkg Ref. (EUH) (EUJ) (2) Notes: (1) Add “T” to end of part number for tape and reel on SMD packages only.
PAGE 3
PTH05010 W —5-V Input 15-A, 5-V Input Non-Isolated Wide-Output Adjust Power Module SLTS204C – MAY 2003 – REVISED DECEMBER 2003 Environmental & Absolute Maximum Ratings Characteristics Symbols Track Input Voltage Operating Temperature Range Solder Reflow Temperature Storage Temperature Mechanical Shock Vtrack Ta Treflow Ts Mechanical Vibration Weight Flammability — — (Voltages are with respect to GND) Conditions Over Vin Range Surface temperature of module body or pins — Per Mil-STD-883D, Method 200
PAGE 4
PTH05010W —5-V Input Typical Characteristics 15-A, 5-V Input Non-Isolated Wide-Output Adjust Power Module Characteristic Data; Vin =5 V SLTS204C – MAY 2003 – REVISED DECEMBER 2003 Safe Operating Area; Vin =5 V (See Note A) Efficiency vs Load Current Output Voltage =3.3 V 100 90 3.3 V 2.5 V 2.0 V 1.8 V 1.5 V 1.2 V 1.
PAGE 5
Application Notes PTH03010W & PTH05010W Capacitor Recommendations for the PTH03010 & PTH05010 Series of Power Modules Input Capacitor The recommended input capacitor(s) is determined by the 470 µF minimum capacitance and 700 mArms minimum ripple current rating. Ripple current, less than 100 mΩ equivalent series resistance (ESR), and temperature are the major considerations when selecting input capacitors.
PAGE 6
Application Notes PTH03010W & PTH05010W Table 1-1: Input/Output Capacitors Capacitor Vendor, Type/ Series (Style) Capacitor Characteristics Quantity Working Voltage Value (µF) Max. ESR at 100 kHz Max. Ripple Current at 85 °C (Irms) Physical Size (mm) Input Bus Output Bus Panasonic, Aluminum FC (Radial) FK (SMD) 10 V 16 V 25 V 560 470 470 0.090 Ω 0.090 Ω 0080 Ω 755 mA 755 mA 850 mA 10×12.5 10×12.5 10×10.
PAGE 7
Application Notes PTH03010W & PTH05010W Adjusting the Output Voltage of the PTH03010W & PTH05010W Wide-Output Adjust Power Modules The Vo Adjust control (pin 4) sets the output voltage of the PTH03010W and PTH05010W products. The adjustment range of the PT03010W (3.3-V input) is from 0.8 V to 2.5 V 1, and the PTH05010W (5-V input) from 0.8 V to 3.6 V. The adjustment method requires the addition of a single external resistor, Rset, that must be connected directly between the Vo Adjust and GND pins 2.
PAGE 8
Application Notes PTH Series of Wide-Output Adjust Power Modules (3.3/5-V Input) Point-of-Load Alliance The PTH family of non-isolated, wide-output adjust power modules from Texas Instruments are optimized for applications that require a flexible, high performance module that is small in size. These products are part of the “Point-of-Load Alliance” (POLA), which ensures compatible footprint, interoperability and true second sourcing for customer design flexibility.
PAGE 9
Application Notes PTH Series of Wide-Output Adjust Power Modules (3.3/5-V Input) The power modules function normally when the Inhibit pin is left open-circuit, providing a regulated output whenever a valid source voltage is connected to Vin with respect to GND. Figure 3-3 shows the typical application of the inhibit function. Note the discrete transistor (Q1). The Inhibit control has its own internal pull-up to Vin potential. The input is not compatible with TTL logic devices.
PAGE 10
Application Notes PTH Series of Wide-Output Adjust Power Modules (3.3/5-V Input) Auto-Track™ Function The Auto-Track function is unique to the PTH family, and is available with the all “Point-of-Load Alliance” (POLA) products. Auto-Track was designed to simplify the amount of circuitry required to make the output voltage from each module power up and power down in sequence.
PAGE 11
Application Notes PTH Series of Wide-Output Adjust Power Modules (3.3/5-V Input) Figure 3–5; Sequenced Power Up & Power Down Using Auto-Track U1 10 9 8 5 Track PTH05020W VIN Inhibit Vo1 =3.3 V 6 GND + 3 C IN VO 1 + 2 +5 V 4 7 C OUT R2 698 C1 0.1 µF U2 R1 100 k 9 8 5 Track 2 + C IN 0V Figure 3–6; Simultaneous Power Up with Auto-Track Control HORIZ SCALE: 10 ms/Div 10 Q1 BSS138 PTH05010W VIN Inhibit 3 VO Vo2 =1.
PAGE 12
Application Notes PTH Series of Wide-Output Adjust Power Modules (3.3/5-V Input) Margin Up/Down Controls Notes: The PTHxx060W, PTHxx010W, PTHxx020W, and PTHxx030W products incorporate Margin Up and Margin Down control inputs. These controls allow the output voltage to be momentarily adjusted 1, either up or down, by a nominal 5 %. This provides a convenient method for dynamically testing the operation of the load circuit over its supply margin or range.
PAGE 13
Application Notes PTH Series of Wide-Output Adjust Power Modules (3.3/5-V Input) Pre-Bias Startup Capability Notes Only selected products in the PTH family incorporate this capability. Consult Table 3-1 to identify which products are compliant. 1. Startup includes the short delay (approx. 10 ms) prior to the output voltage rising, followed by the rise of the output voltage under the module’s internal soft-start control.
PAGE 14
Application Notes PTH Series of Wide-Output Adjust Power Modules (3.3/5-V Input) Remote Sense The PTHxx060W, PTHxx010W, PTHxx020W, and PTHxx030W products incorporate an output voltage sense pin, Vo Sense. The Vo Sense pin should be connected to Vout at the load circuit (see data sheet standard application). A remote sense improves the load regulation performance of the module by allowing it to compensate for any ‘IR’ voltage drop between itself and the load.
PAGE 15
PACKAGE OPTION ADDENDUM www.ti.
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PACKAGE OPTION ADDENDUM www.ti.com 13-Nov-2010 In no event shall TI's liability arising out of such information exceed the total purchase price of the TI part(s) at issue in this document sold by TI to Customer on an annual basis.
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IMPORTANT NOTICE Texas Instruments Incorporated and its subsidiaries (TI) reserve the right to make corrections, modifications, enhancements, improvements, and other changes to its products and services at any time and to discontinue any product or service without notice. Customers should obtain the latest relevant information before placing orders and should verify that such information is current and complete.