PTH12050YAHT datasheet, PDF - EEWORLD Datasheet

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PTH12050YAHT: DescriptionDC-DC CONVERTERS; File Size222KB，4 Pages; ManufacturerEmerson

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PTH12050YAHT Overview

DC-DC CONVERTERS

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3.3/5/12 Vin Single Output

DC-DC CONVERTERS

•

Non-isolated DDR/QDR Memory Bus Termination Module

NEW Product

bus termination output (output tracks the system V

REF

)

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 V

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

PTHxx050Y

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 V

output that will

source or sink up to 6 A of current to accurately track their V

REF

input. V

is the

required bus termination supply voltage, and V

REF

is the reference voltage for the

memory and chipset bus receiver comparators. V

REF

is usually set to half the V

DDQ

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, V

REF

= 1.25 V, full load at 25 °C

unless otherwise stated. C

, C

and C

= typical value

OUTPUT SPECIFICATIONS

Output current

(over ∆V

REF

range)

Tracking range for V

REF

Tracking tolerance to V

REF

- V

REF

)

(over line, load

and temperature)

Ripple and noise

Load transient response

(See Note 5)

Output capacitance:

Non-ceramic values

(See Notes 5 and 6)

Ceramic values

(See Note 5)

(See Note 7)

20 MHz bandwidth

All models

Continuous (See Note 1)

Repetitive pulse (See Note 2)

±6 A

±8 A

0.55-1.8 V

-10 mV to +10mV

INPUT SPECIFICATIONS CONTD.

Input capacitance

(See Note 4)

Remote ON/OFF

GENERAL SPECIFICATIONS

Efficiency

Io = 4 A

Insulation voltage

Switching frequency

PTH03050Y

PTH05050Y

PTH12050Y

PTH03050Y

PTH05050Y

PTH12050Y

2 YEAR WARRANTY

SPECIFICATIONS

PTH03050Y and PTH05050Y

PTH12050Y

470 µF

560 µF

Active high

88% typ.

87% typ.

84% typ.

Non-isolated

550- 650 kHz

550-650 kHz

200-300 kHz

EN60950

UL/cUL60950

UL94V-0

20 mV pk-pk

80 µs settling time

Overshoot/undershoot 25 mV typ.

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 200 µF typ., 300 µF max.

PTH05050Y 200 µF typ., 300 µF max.

PTH12050Y 400 µF typ., 600 µF max.

4 mΩ min

ESR (non-ceramic)

Approvals and

standards

Material flammability

Dimensions

Weight

MTBF

Telcordia SR-332

(L x W x H)

22.10 x 12.57 x 8.50 mm

0.870 x 0.495 x 0.335 in

2.9 g (0.10 oz)

6,000,000 hours

INPUT SPECIFICATIONS

Input current

Input voltage range

No load

PTH03050Y

PTH05050Y

PTH12050Y

10 mA

2.95-3.65 Vdc

4.5-5.5 Vdc

10.8-13.2 Vdc

ENVIRONMENTAL SPECIFICATIONS

Thermal performance

(See Note 2)

MSL (‘Z’ suffix only)

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.

decreasing 3.40 V min., 3.70 V typ.

increasing

9.5 V typ., 10.4 V max.

decreasing

8.80 V min., 9.0 V typ.

PROTECTION

Overcurrent threshold

(auto reset)

All models

12 A typ.

Operating ambient,

temperature

Non-operating

-40 ºC to +85 ºC

-40 ºC to +125 ºC

Undervoltage lockout:

PTH03050Y

PTH05050Y

PTH12050Y

JEDEC J-STD-020C Level 3

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

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