ZY7120 20A DC-DC Intelligent POL Data Sheet

3V to 13.2V Input

• 0.5V to 5.5V Output

Member of the Family

Applications

• Low voltage, high density systems with

Intermediate Bus Architectures (IBA)

• Point-of-load regulators for high performance DSP,

FPGA, ASIC, and microprocessor applications

• Desktops, servers, and portable computing

• Broadband, networking, optical, and

communications systems

• Active memory bus terminators

Benefits

• Integrates digital power conversion with intelligent

power management

• Eliminates the need for external power

management components

• Completely programmable via industry-standard

C communication bus

• One part that covers all applications

• Reduces board space, system cost and

complexity, and time to market

Features

• RoHS lead free and lead-solder-exempt products are

available

• Wide input voltage range: 3V–13.2V

• High continuous output current: 20A

• Wide programmable output voltage range: 0.5V–5.5V

• Active digital current share

• Single-wire serial communication bus for frequency

synchronization, programming, and monitoring

• Optimal voltage positioning with programmable slope

of the VI line

• Overcurrent, overvoltage, undervoltage, and

overtemperature protections with programmable

thresholds and types

• Programmable fixed switching frequency 0.5-1.0MHz

• Programmable turn-on and turn-off delays

• Programmable turn-on and turn-off voltage slew rates

with tracking protection

• Programmable feedback loop compensation

• Power Good signal with programmable limits

• Programmable fault management

• Start up into the load pre-biased up to 100%

• Full rated current sink

• Real time voltage, current, and temperature

measurements, monitoring, and reporting

• Small footprint SMT package: 8x32mm

• Low profile of 14mm

• Compatible with conventional pick-and-place

equipment

• Wide operating temperature range

• UL60950 recognized, CSA C22.2 No. 60950-00

certified, and TUV EN60950-1:2001 certified

Description

The ZY7120 is an intelligent, fully programmable step-down point-of-load DC-DC module integrating digital power

conversion and intelligent power management. When used with ZM7000 Series Digital Power Managers, the

ZY7120 completely eliminates the need for external components for sequencing, tracking, protection, monitoring,

and reporting. All parameters of the ZY7120 are programmable via the industry-standard I

C communication bus

and can be changed by a user at any time during product development and service.

REV. 2.1 MAR 14, 2007 www.power-one.com Page 1 of 34

ZY7120 20A DC-DC Intelligent POL Data Sheet

3V to 13.2V Input

• 0.5V to 5.5V Output

Reference Documents:

• ZM7XXX Digital Power Manager. Data Sheet

• ZM7XXX Digital Power Manager. Programming Manual

• Z-One

Graphical User Interface

• ZM00056-KIT USB to I

C Adapter Kit. User Manual

1. Ordering Information

ZY 71 20 x y – zz

Product

family:

Z-One

Module

Series:

Intelligent

POL

Converter

Output

Current:

20A

Output voltage setpoint

accuracy:

L – 1.0% or 20mV,

whichever is greater.

– 1.0% or 10mV,

whichever is greater

RoHS compliance:

No suffix - RoHS

compliant with Pb

solder exemption

G - RoHS compliant

for all six substances

Dash

Packaging Option

T1 – 500pcs T&R

T2 – 100pcs T&R

T3 – 50pcs T&R

Q1 – 1pc sample for

evaluation only

______________________________________

Contact factory for availability.

The solder exemption refers to all the restricted materials except lead in solder. These materials are Cadmium (Cd), Hexavalent chromium

(Cr6+), Mercury (Hg), Polybrominated biphenyls (PBB), Polybrominated diphenylethers (PBDE), and Lead (Pb) used anywhere except in

solder.

Packaging option is used only for ordering and not included in the part number printed on the POL converter label.

The evaluation board is available in only one configuration: ZM7300-KIT-HKS.

Example: ZY7120HG-T2: A 100-piece reel of RoHS compliant POL converters with the output voltage setpoint of

1.0% or 10mV, whichever is greater. Each POL converter is labeled ZY7120HG.

2. Absolute Maximum Ratings

Stresses in excess of the absolute maximum ratings may cause performance degradation, adversely affect long-

term reliability, and cause permanent damage to the converter.

Parameter Conditions/Description Min Max Units

Operating Temperature Controller case temperature -40 105

°C

Input Voltage 250ms Transient 15 VDC

Output Current (See Output Current Derating Curves) -20 20 ADC

3. Environmental and Mechanical Specifications

Parameter Conditions/Description Min Nom Max Units

Ambient Temperature Range -40 85

°C

Storage Temperature (Ts) -55 125

°C

Weight 15 grams

MTBF Calculated Per Telcordia Technologies SR-332 6.14 MHrs

Peak Reflow Temperature ZY7120 220

°C

Peak Reflow Temperature ZY7120G 245 260

°C

Lead Plating ZY7120 and ZY7120G 1.5µm Ag over 1.5µm Ni

Moisture Sensitivity Level JEDEC J-STD-020C 3

REV. 2.1 MAR 14, 2007 www.power-one.com Page 2 of 34

ZY7120 20A DC-DC Intelligent POL Data Sheet

3V to 13.2V Input

• 0.5V to 5.5V Output

4. Electrical Specifications

Specifications apply at the input voltage from 3V to 13.2V, output load from 0 to 20A, ambient temperature from -

40°C to 85°C, 100µF output capacitance, and default performance parameters settings unless otherwise noted.

4.1 Input Specifications

Parameter Conditions/Description Min Nom Max Units

Input voltage (V

)

At V

<4.75V, VLDO pin needs to be

connected to an external voltage source

higher than 4.75V

3 13.2 VDC

Input Current (at no load)

≥4.75V, VLDO pin connected to VIN

50 mADC

Undervoltage Lockout (VLDO

connected to VIN)

Ramping Up

Ramping Down

4.2

3.75

VDC

Undervoltage Lockout (VLDO

connected to V

AUX

=5V)

Ramping Up

Ramping Down

3.0

2.5

VDC

External Low Voltage Supply Connect to VLDO pin when V

<4.75V 4.75 13.2 VDC

VLDO Input Current

Current drawn from the external low

voltage supply at V

LDO

=5V

50 mADC

4.2 Output Specifications

Parameter Conditions/Description Min Nom Max Units

Output Voltage Range (V

OUT

)

Programmable

Default (no programming)

0.5

5.5

VDC

Output Voltage Setpoint Accuracy

=12V, I

OUT

=0.5*I

OUT MAX

=500kHz, room temperature

(See Ordering Information)

Output Current (I

OUT

) V

IN MIN

to V

IN MAX

-20

20 ADC

Line Regulation V

IN MIN

to V

IN MAX

±0.3 %V

OUT

Load Regulation 0 to I

OUT MAX

±0.2 %V

OUT

Dynamic Regulation

Peak Deviation

Settling Time

Slew rate 1A/µs, 50 -100% load step

OUT

=330µF, F

=1MHz

to 10% of peak deviation

µs

Output Voltage Peak-to-Peak

Ripple and Noise

BW=20MHz

Full Load

=5.0V, V

OUT

=0.5V

=5.0V, V

OUT

=2.5V

=13.2V, V

OUT

=0.5V

=13.2V, V

OUT

=2.5V

=13.2V, V

OUT

=5.0V

Temperature Coefficient V

=12V, I

OUT

=0.5*I

OUT MAX

20 ppm/°C

Switching Frequency

Default

Programmable, 250kHz steps

500

1,000

kHz

Duty Cycle Limit

Default

Programmable, 1.56% steps

90.5

ZY7120 is a step-down converter, thus the output voltage is always lower than the input voltage as show in Figure 1.

At the negative output current (bus terminator mode) efficiency of the ZY7120 degrades resulting in increased internal power dissipation.

Therefore maximum allowable negative current under specific conditions is 20% lower than the current determined from the derating curves

shown in paragraph 5.5.

REV. 2.1 MAR 14, 2007 www.power-one.com Page 3 of 34

Part #	ZY7120LG-T2
Description	PROGBL CONV DC-DC 20A OUT SMD
Category	MODULE
Availability	In Stock
Qty	157

Qty	Price
1 - 5	$44.10552
6 - 14	$35.08393
15 - 30	$33.07914
31 - 65	$30.74021
66 +	$27.39888

Manufacturer	Available	Qty
POWER ONE Date Code: 0720	Freelance Stock: 100 Ships Immediately
POWER ONE	Freelance Stock: 3 Ships Immediately
POWER-ONE	Freelance Stock: 23 Ships Immediately
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POWER-ONE	Freelance Stock: 27 Ships Immediately

ZY7120LG-T2

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