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NNL05 SERIES
Non-Isolated DC/DC Converters
1
NDC NNL05.3
FEATURES
Industry standard footprint
Short circuit protection
High efficiency
Under voltage lock out
Fully adjustable output voltage
Operating temperature range
40C to 85C
Fully adjustable output voltage
SMD construction
DESCRIPTION
The NNL05 series is part of a range
of non-isolated, cost effective DC/DC
converters offering high precision
output voltages from a nominal
3.0-5.5V or 10.0-14.0V intermediate
bus where isolation is not required.
Currently available in SMD format
and packaged in stackable trays
(optional tape and reel packaging
on request). UL60950 recognition
pending.
SELECTION GUIDE
1
Input Voltage Output Voltage
Output Current
User Select
Voltage
Efficiency
Min. Load Full Load
Order Code
V (nom.)
V
A
A
V
OUT
% (min.)
NNL05-9
4
Adjustable
between
0.75 & 3.3
0
5.0
0.75
78
1.2
83
1.5
85
1.8
87
2.5
90
3.3
94
NNL05-10
12
Adjustable
between
0.75 & 5.0
0
5.0
0.75
71
1.2
78
1.5
80
1.8
83
2.5
85
3.3
87
5.0
90
INPUT CHARACTERISTICS
1
Parameter
Conditions
Min.
Typ.
Max.
Units
Voltage range
NNL05-9 V
OUT
< 2.75V
3.0
5.5
V
NNL05-9 V
OUT
> 3.0V
4.0
5.5
NNL05-10
10.0
14.0
Under voltage lock out
NNL05-9
Turn on threshold
2.11
V
Turn off threshold
1.96
NNL05-10
Turn on threshold
7.85
8.25
Turn off threshold
7.75
8.20
Reflected ripple current
NNL05-9
12.0
mA p-p
NNL05-10
20.0
Input no load current
NNL05-9
V
IN
= 5.5V V
OUT
= 0.75V
70
mA
V
IN
= 5.5V V
OUT
= 3.3V
100
NNL05-10
V
IN
= 12.0V V
OUT
= 0.75V
15
V
IN
= 12.0V V
OUT
= 5.0V
75
Input standby current
Module Disabled
5.0
mA
OUTPUT CHARACTERISTICS
Parameter
Conditions
Min.
Typ.
Max.
Units
Rated current
T
A
= 40C to 85C
(see thermal performance characteristics)
5.0
A
Voltage set point accuracy Using 1% tolerance resistor
-2.0
+2.0
%
Line regulation
Low line to high line
NNL05-9
1.0
%
NNL05-10
0.1
Load regulation
0% load to 100% load
NNL05-9
1.0
%
NNL05-10
0.2
Ripple & noise
BW = DC to 20MHz
with 1F ceramic
and 10F tantalum
NNL05-9
30
mV p-p
NNL05-10 0.75V
9
NNL05-10 5.0V
20
Transient response
NNL05-9
I
OUT
= 2.5A5.0A2.5A
Peak deviation
60
mV
Settling time
25
s
NNL05-10
I
OUT
= 2.5A5.0A2.5A
Peak deviation
70
mV
Settling time
35
s
Current limit inception
9.0
A
1 Specifications typical at T
A
=25C, nominal input voltage and rated output current unless otherwise specified.
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NNL05 SERIES
Non-Isolated DC/DC Converters
2
NDC NNL05.3
ABSOLUTE MAXIMUM RATINGS
Short circuit protection
Continuous
Input voltage V
IN
NNL05-9
6.0V
NNL05-10
15.0V
Trim voltage
NNL05-9
-0.35V to V
OUT
NNL05-10
-0.3V to V
OUT
Remote on/off
NNL05-9
-0.35V to 6.0V
NNL05-10
-0.3V to +V
OUT
Minimum load
0%
GENERAL CHARACTERISTICS
1
Parameter
Conditions
Min.
Typ.
Max.
Units
Switching frequency
300
kHz
Start delay
NNL05-9
5.0
ms
NNL05-10
7.0
Remote on/off
NNL05-9
Module on
(or pin unconnected)
0
0.5
V
-0.4
mA
Module off
2.6
V
IN
V
1.0
mA
NNL05-10
Module on
(or pin unconnected)
0
0.5
V
-0.4
mA
Module off
2.5
V
IN
V
0.125
1.0
mA
ENVIRONMENTAL CHARACTERISTICS
1
Parameter
Conditions
Min.
Typ.
Max.
Units
Operation
See thermal performance characteristics
-40
85
C
Storage
Absolute max. internal temperature
-55
125
C
Over temperature
protection
Operates at substrate
temperature
NNL05-9
110
C
NNL05-10
118
1 Specifications typical at T
A
=25C, nominal input voltage and rated output current unless otherwise specified.
OUTPUT VOLTAGE ADJUSTMENT
V
IN
V
OUT
GND
TRIM
R
TRIM
NNL05
V
IN
V
OUT
GND
TRIM
V
TRIM
NNL05
The trimming (adjust) input on the device allows
output voltage adjustment from 0.75V to 3.3Vdc
(NNL05-9) or 5.0 (NNL05-10) by using a resis-
tor as shown in fig.1 or by applying a voltage
between trim and GND pins as shown in fig.2.
To calculate the resistor value for NNL05-9:
R
TRIM
=
21070
5110
V
OUT
0.75
To calculate the resistor value for NNL05-10:
R
TRIM
=
10500
1000
V
OUT
0.7525
To calculate V
TRIM
for NNL05-9:
V
TRIM
= (0.70.1698 x {V
OUT
0.7525})
To calculate V
TRIM
for NNL05-10:
V
TRIM
= (0.70.0667 x {V
OUT
0.7525})
Tables 1 & 2 provide R
TRIM
and V
TRIM
Values for
the most commonly required output voltages.
Table 1: NNL05-9 R
TRIM
& V
TRIM
V
OUT
SET
(V)
R
TRIM
(k)
V
TRIM
(V)
0.75
Open
Open
1.2
41.71
0.624
1.5
22.98
0.573
1.8
14.96
0.505
2.5
6.93
0.403
3.3
3.15
0.267
Table 2: NNL05-10 R
TRIM
& V
TRIM
V
OUT
SET
(V)
R
TRIM
(k)
V
TRIM
(V)
0.75
Open
Open
1.2
22.46
0.670
1.5
13.05
0.650
1.8
9.024
0.630
2.5
5.009
0.583
3.3
3.122
0.530
5.0
1.472
0.4166
Fig.1
Fig.2
MTTF
MTTF figures calculated by MIL-HDBK-217F ground
benign. Ambient temperature 25C, airflow 200LFM.
Conditions
MTTF (Hrs)
NNL05-9
V
IN
= 5.5V, V
OUT
= 3.3V
995057
NNL05-10 V
IN
= 12.0V, V
OUT
= 5.0V
420454
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NNL05 SERIES
Non-Isolated DC/DC Converters
3
NDC NNL05.3
EFFICIENCY v LOAD GRAPHS (NNL05-9)
V
OUT
= 3.3V
V
OUT
= 2.5V
V
OUT
= 1.8V
V
OUT
= 1.5V
V
OUT
= 1.2V
V
OUT
=0.75V
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NNL05 SERIES
Non-Isolated DC/DC Converters
4
NDC NNL05.3
EFFICIENCY v LOAD GRAPHS (NNL05-10)
V
OUT
= 5.0V
V
OUT
= 3.3V
V
OUT
= 2.5V
V
OUT
= 1.8V
V
OUT
= 1.5V
V
OUT
=1.2V
V
OUT
=0.75V
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NNL05 SERIES
Non-Isolated DC/DC Converters
5
NDC NNL05.3
THERMAL DERATING GRAPHS (NNL05-9)
V
OUT
= 3.3V
V
OUT
= 2.5V
V
OUT
= 1.8V
V
OUT
= 1.5V
V
OUT
= 1.2V
V
OUT
=0.75V
All derating graphs shown are for an input voltage, V
IN
= 5.5V
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NNL05 SERIES
Non-Isolated DC/DC Converters
6
NDC NNL05.3
THERMAL DERATING GRAPHS (NNL05-10)
V
OUT
= 5.0V
V
OUT
= 3.3V
V
OUT
= 2.5V
V
OUT
= 1.8V
V
OUT
= 1.5V
V
OUT
=1.2V
V
OUT
=0.75V
All derating graphs shown are for an input voltage, V
IN
= 14.0V
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NNL05 SERIES
Non-Isolated DC/DC Converters
7
NDC NNL05.3
CHARACTERISTIC GRAPHS (NNL05-9)
TYPICAL OUTPUT RIPPLE & NOISE
TYPICAL OUTPUT RIPPLE & NOISE
V
IN
= 5.0VDC V
OUT
= 3.3V I
OUT
= 5.0A
V
IN
= 5.0VDC V
OUT
= 0.75V I
OUT
= 5.0A
TYPICAL START-UP FROM APPLICATION OF VIN
TYPICAL START-UP USING REMOTE ON/OFF
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NNL05 SERIES
Non-Isolated DC/DC Converters
8
NDC NNL05.3
CHARACTERISTIC GRAPHS (NNL05-10)
TYPICAL OUTPUT RIPPLE & NOISE (0.75V OUTPUT)
TYPICAL OUTPUT RIPPLE & NOISE (5.0V OUTPUT)
TYPICAL START-UP FROM APPLICATION OF VIN
TYPICAL START-UP USING REMOTE ON/OFF
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NNL05 SERIES
Non-Isolated DC/DC Converters
9
NDC NNL05.3
C&D Technologies (NCL) Limited reserve the right to alter or improve the specification, internal design or manufacturing process at any
time, without notice. Please check with your supplier or visit our web site to ensure that you have the current and complete specification for
your product before use.
C&D Technologies (NCL) Limited 2005
No part of this publication may be copied, transmitted or stored in a retrieval system or reproduced in any way including, but not limited
to, photography, photocopy, magnetic or other recording means, without prior written permission from C&D Technologies (NCL) Limited.
Instructions for use are available from www.cdpoweronline.com
C&D Technologies (NCL) Ltd
Tanners Drive, Blakelands North
Milton Keynes MK14 5BU, England
Tel: +44 (0)1908 615232
Fax: +44 (0)1908 617545
email: info@cdtechno-ncl.com
C&D Technologies, Inc.
3400 E Britannia Drive, Tucson,
Arizona 85706, USA
Tel: +1 (800) 547-2537
Fax: +1 (520) 741-4598
email: pedmktg@cdtechno.com
MECHANICAL DIMENSIONS
SURFACE MOUNT PACKAGE STYLE (BOTTOM VIEW)
PIN CONNECTIONS
Pin
Function
1
On/Off
2
V
IN
3
GND
4
Trim
5
V
OUT
PACKAGE WEIGHT
NNL05-9
2.3g
NNL05-10
2.7g
TRAY DIMENSIONS (TOP VIEW)
PICK-UP POINT
Unless otherwise stated all dimensions
in inches(mm) 0.01(0.25).
Tray quantity: 56
+0.020(0.5)
-0.00(0.0)
X (NNL05-9) = 0.26(6.6)
X (NNL05-10) = 0.23(5.9)
Coplanarity = 150microns
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