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
I
2
C communication bus
One part that covers all applications
Reduces board space, system cost and
complexity, and time to market
Description
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
UL 60950-1/CSA 22.2 No. 60950-1-07 Second
Edition, IEC 60950-1: 2005, and EN 60950-1:2006
Power-One‟s point-of-load converters are recommended for use with regulated bus converters in an Intermediate
Bus Architecture (IBA). 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 ZM7300 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
2
C communication bus and can be changed by a user at any time during product development and service.
ZD-00194 Rev. 2.7, 5-May -2011
www.power-one.com
Page 1 of 33
ZY7120 20A DC-DC Intelligent POL Data Sheet
3V to 13.2V Input
0.5V to 5.5V Output
Reference Documents:
ZM7300 Digital Power Manager Data Sheet
ZM7300 PrgManual - Digital Power Manager Programming Manual
Power-One I2C GEN II Graphical User Interface
ZM00056-KIT USB to I
2
C Adapter Kit. User Manual
1.
Ordering Information
ZY
Product
family:
Z-One
Module
71
Series:
Intelligent
POL
Converter
20
Output
Current:
20A
x
Output voltage setpoint
accuracy:
L
– 1.2% or 20mV,
whichever is greater.
H
1
– 1.0% or 10mV,
whichever is greater
y
RoHS compliance:
No suffix
- RoHS
compliant with Pb
solder exemption
2
G
- RoHS compliant
for all six substances
–
zz
Packaging Option
3
:
T1
– 500pcs T&R
T2
– 100pcs T&R
T3
– 50pcs T&R
Q1
– 1pc sample for
evaluation only
Dash
______________________________________
1
2
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.
3
Packaging option is used only for ordering and not included in the part number printed on the POL converter label.
4
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
Operating Temperature
Input Voltage
Output Current
Conditions/Description
Controller case temperature
250ms Transient
(See Output Current Derating Curves)
-20
Min
-40
Max
105
15
20
Units
C
VDC
ADC
3.
Environmental and Mechanical Specifications
Parameter
Ambient Temperature Range
Storage Temperature (Ts)
Weight
MTBF
Peak Reflow Temperature
Lead Plating
Moisture Sensitivity Level
Calculated Per Telcordia Technologies SR-332
ZY7120
ZY7120G
ZY7120 and ZY7120G
ZY7120 and ZY7120G
6.14
245
220
260
Conditions/Description
Min
-40
-55
Nom
Max
85
125
15
Units
C
C
grams
MHrs
C
C
100% Matte Tin
3
ZD-00194 Rev. 2.7, 5-May -2011
www.power-one.com
Page 2 of 33
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, 100F output capacitance, and default performance parameters settings unless otherwise noted.
4.1
Input Specifications
Parameter
Input voltage (V
IN
)
Input Current (at no load)
Undervoltage Lockout (VLDO
connected to VIN)
Undervoltage Lockout (VLDO
connected to V
AUX
=5V)
External Low Voltage Supply
VLDO Input Current
Conditions/Description
At V
IN
<4.75V, VLDO pin needs to be
connected to an external voltage source
higher than 4.75V
V
IN
4.75V,
VLDO pin connected to VIN
Ramping Up
Ramping Down
Ramping Up
Ramping Down
Connect to VLDO pin when V
IN
<4.75V
Current drawn from the external low
voltage supply at V
LDO
=5V
4.75
50
Min
3
50
4.2
3.75
3.0
2.5
13.2
Nom
Max
13.2
Units
VDC
mADC
VDC
VDC
VDC
VDC
VDC
mADC
4.2
Output Specifications
Parameter
Output Voltage Range (V
OUT
)
Conditions/Description
Programmable
Default (no programming)
V
IN
=12V, I
OUT
=0.5*I
OUT MAX
,
F
SW
=500kHz, room temperature
V
IN MIN
to V
IN MAX
V
IN MIN
to V
IN MAX
0 to I
OUT MAX
Slew rate 1A/s, 50 -100% load step
C
OUT
=330F, F
SW
=1MHz
to 10% of peak deviation
V
IN
=5.0V, V
OUT
=0.5V
V
IN
=5.0V, V
OUT
=2.5V
V
IN
=13.2V, V
OUT
=0.5V
V
IN
=13.2V, V
OUT
=2.5V
V
IN
=13.2V, V
OUT
=5.0V
V
IN
=12V, I
OUT
=0.5*I
OUT MAX
Default
Programmable, 250kHz steps
Default
Programmable, 1.56% steps
500
90.5
0
95
1
Min
0.5
Nom
0.5
Max
5.5
Units
VDC
VDC
Output Voltage Setpoint Accuracy
Output Current (I
OUT
)
Line Regulation
Load Regulation
Dynamic Regulation
Peak Deviation
Settling Time
Output Voltage Peak-to-Peak
Ripple and Noise
BW=20MHz
Full Load
Temperature Coefficient
Switching Frequency
Duty Cycle Limit
1
2
(See Ordering Information)
-20
2
±0.3
±0.2
75
50
10
20
15
35
50
20
500
1,000
20
ADC
%V
OUT
%V
OUT
mV
s
mV
mV
mV
mV
mV
ppm/°C
kHz
kHz
%
%
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.
ZD-00194 Rev. 2.7, 5-May -2011
www.power-one.com
Page 3 of 33
ZY7120 20A DC-DC Intelligent POL Data Sheet
3V to 13.2V Input
0.5V to 5.5V Output
V
OUT
[V]
5.5
5.0
4.5
4.0
3.5
3.0
2.5
2.0
1.5
1.0
Min Load 0.2A
0.5
2.0
4.0
3.0 3.15
6.0
5.5
6.25
8.0
10.0
12.0
13.2
14.0
V
IN
[V]
Figure 1. Output Voltage as a Function of Input Voltage and Output Current
4.3
Protection Specifications
Parameter
Conditions/Description
Output Overcurrent Protection
Type
Threshold
Threshold Accuracy
Output Overvoltage Protection
Type
Threshold
Threshold Accuracy
Delay
Default
Programmable
Default
Programmable in 10% steps
Measured at V
O.SET
=2.5V
From instant when threshold is exceeded until
the turn-off command is generated
Non-Latching, 130ms period
Latching/Non-Latching
130
%V
O.SET
130
%V
O.SET
2
6
%V
OVP.SET
μs
Default
Programmable
Default
Programmable in 11 steps
Non-Latching, 130ms period
Latching/Non-Latching
140
%I
OUT
140
%I
OUT
25
%I
OCP.SET
Min
Nom
Max
Units
50
-25
110
1
-2
ZD-00194 Rev. 2.7, 5-May -2011
www.power-one.com
Page 4 of 33
ZY7120 20A DC-DC Intelligent POL Data Sheet
3V to 13.2V Input
0.5V to 5.5V Output
Output Undervoltage Protection
Type
Threshold
Threshold Accuracy
Delay
Default
Programmable
Default
Programmable in 5% steps
Measured at V
O.SET
=2.5V
From instant when threshold is exceeded until
the turn-off command is generated
Overtemperature Protection
Type
Turn Off Threshold
Turn On Threshold
Threshold Accuracy
Delay
From instant when threshold is exceeded until
the turn-off command is generated
Tracking Protection (when Enabled)
Type
Threshold
Threshold Accuracy
Delay
From instant when threshold is exceeded until
the turn-off command is generated
Overtemperature Warning
Threshold
Threshold Accuracy
Hysteresis
Delay
From instant when threshold is exceeded until
the warning signal is generated
Power Good Signal (PGOOD pin)
Logic
Lower Threshold
Upper Threshold
Delay
Threshold Accuracy
From instant when threshold is exceeded until
status of PG signal changes
Measured at V
O.SET
=2.5V
-2
V
OUT
is inside the PG window
V
OUT
is outside the PG window
Default
Programmable in 5% steps
High
Low
90
90
110
6
2
95
N/A
%V
O.SET
%V
O.SET
%V
O.SET
μs
%V
O.SET
Always enabled, reported in Status register
-5
3
6
120
5
C
C
C
μs
Default
Programmable
Enabled during output voltage ramping up
-50
6
Disabled
Latching/Non-Latching, 130ms period
250
50
mVDC
mVDC
μs
Default
Programmable
Temperature is increasing
Temperature is decreasing after the module was
shut down by OTP
-5
6
Non-Latching, 130ms period
Latching/Non-Latching
130
120
5
C
C
C
μs
Non-Latching, 130ms period
Latching/Non-Latching
75
%V
O.SET
85
%V
O.SET
2
6
%V
UVP.SET
μs
75
-2
___________________
1
Minimum OVP threshold is 1.0V
ZD-00194 Rev. 2.7, 5-May -2011
www.power-one.com
Page 5 of 33
京公网安备 11010802033920号
EEWORLD
