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PTH05050Y Datasheet Preview

PTH05050Y Datasheet

DC-DC / Non-Isolated POLA memory

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PTHxx050Y

3.3/5/12 Vin Single Output

DC-DC CONVERTERS Non-isolated DDR/QDR Memory Bus Termination Module

• VTT bus termination output (output tracks the system VREF)

• 6 A output current (8 A Peak)

• 3.3 Vdc, 5 Vdc or 12 Vdc input voltage

• DDR and QDR compatible

• ON/OFF inhibit (for VTT standby)

• Under-voltage lockout

• Operating temperature range: -40 ºC to +85 ºC

• Efficiencies up to 88%

• Output overcurrent protection (non-latching, auto-reset)

• Point-of-Load-Alliance (POLA) compatible

• Available RoHS compliant

NEW Product

The PTHxx050Y are a new series of non-isolated dc-dc converters designed

specifically for bus termination in DDR and QDR memory applications. Operating from

either a 3.3 Vdc, 5 Vdc or 12 Vdc input, the modules generate a VTT output that will

source or sink up to 6 A of current to accurately track their VREF input. VTT is the

required bus termination supply voltage, and VREF is the reference voltage for the

memory and chipset bus receiver comparators. VREF is usually set to half the VDDQ

power supply voltage. The PTHxx050Y series employs an actively switched

synchronous rectifier output to provide state of the art stepdown switching conversion.

The products are small in size and are an ideal choice where space, performance and

high efficiency are desired.

All specifications are typical at nominal input, VREF = 1.25 V, full load at 25 °C

unless otherwise stated. Cin, Co1 and Co2 = typical value

2 YEAR WARRANTY

SPECIFICATIONS

OUTPUT SPECIFICATIONS

INPUT SPECIFICATIONS CONTD.

Output current

(over ∆VREF range)

All models

Continuous (See Note 1)

Repetitive pulse (See Note 2)

±6 A

±8 A

Tracking range for VREF

Tracking tolerance to VREF (VTT - VREF)

(over line, load

and temperature)

0.55-1.8 V

-10 mV to +10mV

Ripple and noise

20 MHz bandwidth

20 mV pk-pk

Load transient response

(See Note 5)

80 µs settling time

Overshoot/undershoot 25 mV typ.

Output capacitance:

Non-ceramic values

(See Notes 5 and 6)

Ceramic values

(See Note 5)

(See Note 7)

PTH03050Y 470 µF typ., 3,300 µF max.

PTH05050Y 470 µF typ., 3,300 µF max.

PTH12050Y 940 µF typ., 3,300 µF max.

PTH03050Y

PTH05050Y

PTH12050Y

200 µF typ., 300 µF max.

400 µF typ., 600 µF max.

ESR (non-ceramic)

4 mΩ min

Input capacitance

(See Note 4)

PTH03050Y and PTH05050Y 470 µF

PTH12050Y

560 µF

Remote ON/OFF

Active high

GENERAL SPECIFICATIONS

Efficiency

Io = 4 A

PTH03050Y

PTH05050Y

PTH12050Y

88% typ.

87% typ.

84% typ.

Insulation voltage

Non-isolated

Switching frequency

PTH03050Y

PTH05050Y

PTH12050Y

550- 650 kHz

550-650 kHz

200-300 kHz

Approvals and

standards

EN60950

UL/cUL60950

Material flammability

UL94V-0

Dimensions

(L x W x H) 22.10 x 12.57 x 8.50 mm

0.870 x 0.495 x 0.335 in

Weight

2.9 g (0.10 oz)

INPUT SPECIFICATIONS

Input current

No load

10 mA

Input voltage range

PTH03050Y

PTH05050Y

PTH12050Y

2.95-3.65 Vdc

4.5-5.5 Vdc

10.8-13.2 Vdc

Undervoltage lockout:

PTH03050Y

PTH05050Y

PTH12050Y

Vin increasing 2.45 V typ., 2.80 V max.

Vin decreasing 2.20 V min., 2.40 V typ.

Vin increasing 4.30 V typ., 4.45 V max.

Vin decreasing 3.40 V min., 3.70 V typ.

Vin increasing 9.5 V typ., 10.4 V max.

Vin decreasing 8.80 V min., 9.0 V typ.

MTBF

Telcordia SR-332

6,000,000 hours

ENVIRONMENTAL SPECIFICATIONS

Thermal performance

(See Note 2)

Operating ambient, -40 ºC to +85 ºC

temperature

Non-operating

-40 ºC to +125 ºC

MSL (‘Z’ suffix only)

JEDEC J-STD-020C Level 3

PROTECTION

Overcurrent threshold

(auto reset)

All models

12 A typ.

File Name: PTHxx050Y.pdf Rev (02): 19 Dec 2005

Emerson

PTH05050Y Datasheet Preview

PTH05050Y Datasheet

DC-DC / Non-Isolated POLA memory

No Preview Available !

PTHxx050Y

3.3/5/12 Vin Single Output

DC-DC CONVERTERS Non-isolated DDR/QDR Memory Bus Termination Module

For the most current data and application support visit www.artesyn.com/powergroup/products.htm

NEW Product

OUTPUT

POWER

(MAX.)

10.8 W

INPUT

VOLTAGE

2.95-3.65 Vdc

4.5-5.5 Vdc

10.8-13.2 Vdc

VTT

RANGE

0.55-1.8Vdc

OUTPUT

CURRENT

(MIN.)

OUTPUT

CURRENT

(MAX.)

±6 A

EFFICIENCY

(TYP.)

88%

87%

84%

MODEL

NUMBER (9,10)

PTH03050Y

PTH05050Y

PTH12050Y

Part Number System with Options

Product Family

Point of Load Alliance

Compatible

Input Voltage

03 = 3.3 V, 05 = 5 V

and 12 = 12 V

Output Current

05 = 6 A

Mechanical Package

Always 0

P T H 0 5 0 5 0 YA S T

Packaging Options

No Suffix = Trays

T = Tape and Reel (8)

Mounting Option (9)

D = Horizontal Through-Hole (Matte Sn)

H = Horizontal Through-Hole (Sn/Pb)

S = Surface-Mount (63/37 Sn/Pb

pin solder material)

Z = Surface-Mount (96.5/3.0/0.5 Sn/Ag/Cu

pin solder material)

Pin Option

A = Through-Hole Std. Pin Length (0.140”)

A = Surface-Mount Tin/Lead Solder Ball

Output Voltage Code

Y = DDR Module

Notes

1 Rating is conditional on the module being directly soldered to a 4 layer

PCB with 1 oz. copper. See the SOA curves or contact the factory for

appropriate derating. The PTH03050Y and PTH05050Y require no

derating up to 85 °C operating temperature and natural convection

airflow.

2 Up to 10 ms pulse period at 10% maximum duty.

3 This control pin has an internal pull-up to the input voltage Vin. If it is left

open-circuit the module will operate when input power is applied. A small

low-leakage (<100 nA) MOSFET is recommended for control. For further

information, consult Application Note 178.

4 An input capacitor is required for proper operation. The capacitor must

be rated for a minimum of 300 mA rms (750 mA rms for 12 V input) of

ripple current.

5 The typical value of external output capacitance value ensures that VTT

meets the specified transient performance requirements for the memory

bus terminations. Lower values of capacitance may be possible when the

measured peak change in output current is consistently less than 3 A.

Test conditions were 15 A/µs load step, -1.5 A to +1.5 A.

6 This is the calculated maximum. The minimum ESR limitation will often

result in a lower value. Consult Application Note 178 for further details.

7 This is the typical ESR for all the electrolytic (non-ceramic) output

capacitance. Use 7 mΩ as the minimum when using max ESR values to

calculate.

8 Tape and reel packaging only available on the surface-mount versions.

9 To order Pb-free (RoHS compatible) surface-mount parts replace the

mounting option ‘S’ with ‘Z’, e.g. PTHxx050YAZ. To order Pb-free (RoHS

compatible) through-hole parts replace the mounting option ‘H’ with ‘D’,

e.g. PTHxx050YAD.

10 NOTICE: Some models do not support all options. Please contact your

local Artesyn representative or use the on-line model number search tool at

http://www.artesyn.com/powergroup/products.htm to find a suitable

alternative.

International Safety Standard Approvals

UL/cUL CAN/CSA-C22.2 No. 60950

File No. E174104

TÜV Product Service (EN60950) Certificate No. B 04 06 38572 044

CB Report and Certificate to IEC60950, Certificate No. US/8292/UL

File Name: PTHxx050Y.pdf Rev (02): 19 Dec 2005

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DC-DC / Non-Isolated POLA memory

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