For more information, please visit the
product page.
date
11/07/2014
page
1 of 13
MODEL:
NDM2Z-12V
│
DESCRIPTION:
AUTO COMPENSATED, DIGITAL DC-DC POL CONVERTER
GENERAL CHARACTERISTICS
• 4.5~14 V input range
•
•
•
•
•
•
•
•
•
0.6~5.0 V programmable output
voltage tracking
voltage margining
Snapshot™
parametric capture
voltage/current/temperature monitoring
synchronization and phase spreading
remote differential voltage sense
programmable soft start and soft stop
fault management
FEATURES
• compact package
vertical:
20.8 x 7.23 x 15.6 mm
(0.820 x 0.285 x 0.614 x in)
• 12 A output
• high efficiency
• auto compensation
• SMBus interface
• PMBus™ Compatible
• Ericsson footprint compatible
MODEL
NDM2Z-12V
input voltage
(Vdc)
output voltage
(Vdc)
output current
max
(A)
output wattage
max
(W)
4.5~14
0.6~5.0
12
60
PART NUMBER KEY
NDM2Z-12V
-
X X
-
XXX
Base Number
Pin Configuration:
A = standard
configuration
Package Option:
A = loose parts
B = tape and reel
C = tray
Firmware Configuration:
000~ZZZ
Example part number:
NDM2Z-12V-AA-002
vertical module
standard pin configuration
loose parts package option
firmware configuration 002
CONTENTS
Absolute Maximum Ratings.................................2
Recommended Operating Conditions....................2
Pin Descriptions................................................3
Typical Characteristics.......................................4~5
Mechanical Drawing..............................................6
Operating Information.....................................7~13
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CUI Inc
│
MODEL:
NDM2Z-12V
│
DESCRIPTION:
AUTO COMPENSATED, DIGITAL DC-DC POL CONVERTER
date
11/07/2014
│
page
2 of 13
ABSOLUTE MAXIMUM RATINGS
parameter
V
in
digital pin voltage
analog pin voltage
ground voltage differential
operating temperature
storage temperature
conditions/description
input voltage
CTRL, DDC, SA0, SALRT, SDA, SCL, SYNC, VSET
+S, -S, VTRK
(GND - PREF)
T
P1
-0.3
-0.3
-0.3
-40
-55
min
typ
max
15
6.5
6.5
0.3
120
125
units
V
V
V
V
°C
°C
RECOMMENDED OPERATING CONDITIONS
-30°C < T
P1
< +95°C, 4.5 V < V
in
< 14 V, typical measurements made at V
in
= 12 V, V
out
= 1.0 V, I
out
= I
max
, T
P1
= 25°C,
=C
in
= 470 μF/10 mΩ, C
out
= 470 μF/8 mΩ
INPUT / OUTPUT
parameter
V
in
I
out
V
out
V
out
margin
voltage accuracy
conditions/description
input supply voltage
output current
adjustable via resistor or PMBus™ commands
adjustable via PMBus commands
over line, load and temperature
measured at +S and -S
4.5
V
out
V
out
V
out
V
out
V
≤
V
in
≤
14 V
= 0.6 V
= 1.0 V
= 1.8 V
= 3.3 V
min
4.5
0
0.6
0
-1
0.3
0.6
0.4
2.2
2.8
2.3
2.0
3.1
-0.025
9
14
17
16
0
5
31
38
52
85
TBD
20
0
0
200
500,000
0.025
typ
max
14
12
5.0
110
1
units
V
A
V
%
%
line regulation
mV
load regulation
0 A
≤
I
out
≤
I
max
V
out
= 0.6 V
V
out
= 1.0 V
V
out
= 1.8 V
V
out
= 3.3 V
when V
out
set via PMBus commands
V
out
V
out
V
out
V
out
=
=
=
=
0.6
1.0
1.8
3.3
V
V
V
V
mV
voltage set-point resolution
voltage ripple and noise
ramp-up time
on time delay
% FS
mVp-p
ms
ms
adjustable via PMBus
adjustable via PMBus
I
out
: 25%
V
out
= 0.6
V
out
= 1.0
V
out
= 1.8
V
out
= 3.3
I
out
: 25%
V
out
= 0.6
V
out
= 1.0
V
out
= 1.8
V
out
= 3.3
V
V
V
V
V
V
V
V
75%
25% of I
max
, dI/dt=2 A/μs
load transient voltage deviation
mV
75%
25% of I
max
, dI/dt=2 A/μs
load transient recovery time
1
µs
Notes:
1. settling to within 3% of V
out
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│
MODEL:
NDM2Z-12V
│
DESCRIPTION:
AUTO COMPENSATED, DIGITAL DC-DC POL CONVERTER
date
11/07/2014
│
page
3 of 13
POWER / EFFICIENCY
parameter
output power
conditions/description
V
out
= 5.0 V + 10% margin
I
out
= 50% of max
efficiency
I
out
= max
V
out
= 0.6 V
V
out
= 1.0 V
V
out
= 1.8 V
V
out
= 3.3 V
CTRL deasserted
V
out
V
out
V
out
V
out
V
out
V
out
V
out
V
out
=
=
=
=
=
=
=
=
0.6
1.0
1.8
3.3
0.6
1.0
1.8
3.3
V
V
V
V
V
V
V
V
min
0
83.6
87.9
90.4
90.8
81.1
86.5
89.8
91.2
0.45
0.58
0.94
1.78
0.13
320
typ
max
66
units
W
%
%
idle power
W
switching frequency
kHz
FAULT PROTECTION
parameter
output over voltage protection
output over current protection
input under voltage protection
input over voltage protection
over temperature protection
thermal protection hysteresis
conditions/description
(OVP) adjustable via PMBus commands
(OCP) adjustable via PMBus commands
adjustable via PMBus commands
adjustable via PMBus commands
(OTP) measured on the module
difference between temperature fault and warning
4.5
14
125
15
min
typ
max
5.6
TBD
units
V
A
V
V
°C
°C
POWER CONNECTIONS
symbol
VIN
GND
VOUT
pin
1A
2A
3A
IO type
Power
Ground
Power
description
Input voltage
Power ground
Output voltage
COMMUNICATION CONNECTIONS
symbol
+S
-S
VSET
VTRK
SALRT
SDA
SCL
SYNC
SA0
CTRL
DDC
PREF
pin
4A
4B
5A
5B
6A
6B
7A
7B
8A
8B
9A
9B
IO type
Analog
Analog
Digital
Analog
Digital
Digital
Digital
Digital
Digital
Digital
Digital
Ground
description
Output voltage positive sense input
Output voltage negative sense input
Output voltage pin-strap
Voltage tracking input
SMBus alert
SMBus data
SBMBus clock
Synchronization I/O
SMBus Address pinstrap
Remote control or enable pin
Digital-DC Communications bus (equivalent to Ericsson Power GCB)
Pin-strap ground
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product page.
CUI Inc
│
MODEL:
NDM2Z-12V
│
DESCRIPTION:
AUTO COMPENSATED, DIGITAL DC-DC POL CONVERTER
date
11/07/2014
│
page
4 of 13
LOGIC INPUT/OUTPUT CHARACTERISTICS
parameter
input high voltage (V
IH
)
input low voltage (V
IL
)
output high voltage (V
OH
)
output low voltage (V
OL
)
conditions/description
CTRL, DDC, SA0, SCL, SDA, SYNC, VSET
CTRL, DDC, SA0, SCL, SDA, SYNC, VSET
DDC, SALRT, SDA, SYNC
DDC, SALRT, SDA, SYNC
2.25
0.4
min
2
0.8
typ
max
units
V
V
V
V
OUTPUT DECOUPLING CAPACITOR RECOMMENDATION
parameter
C
OUT
conditions/description
total output capacitance located on host board
min
300
typ
max
15,000
units
µF
DDC CONFIGURATION REQUIREMENTS
A pull-up resistor is required on the DDC in order to guarantee the rise time as follows:
Rise Time
DDC
= R
DDC
* C
DDC
< 1 µs
R
DDC
is the DDC pull-up resistor and C
DDC
is the DDC capacitive loading. The pull-up resistor should be tied to an external 3.3V or 5V
supply. The designer needs to ensure that the resistor pull-up voltage is present during module power-up. Each module connected to
the DDC presents ~10 pF, each inch of FR4 PCB trace introduces ~2 pF of capacitive loading.
SMBUS CONFIGURATION REQUIREMENTS
The complete specifications for the SMBus can be found on the following web pages: www.pmbus.info , smbus.org
TYPICAL CHARACTERISTICS
Conditions
(applies to all graphs unless stated otherwise):
T
P1
= 25°C, V
in
= 12 V, C
in
= 470 μF/10 mΩ, C
out
= 470 μF/8 mΩ, I
out
= Imax
cui.com
For more information, please visit the
product page.
CUI Inc
│
MODEL:
NDM2Z-12V
│
DESCRIPTION:
AUTO COMPENSATED, DIGITAL DC-DC POL CONVERTER
date
11/07/2014
│
page
5 of 13
TYPICAL CHARACTERISTICS (CONTINUED)
Conditions
(applies to all graphs unless stated otherwise):
T
P1
= 25°C, V
in
= 12 V, C
in
= 470 μF/10 mΩ, C
out
= 470 μF/8 mΩ, I
out
= Imax
Start-up
(V
out
= 1.0 V)
Shut-down
(V
out
= 1.0 V)
Output Load Transient Response
(V
out
= 1.0 V, I
out
= 3.0
9.0
3.0 A, 2 A/μs)
Output Ripple and Noise
(V
out
= 1.0 V)
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