NNL05 SERIES
Non-Isolated DC/DC Converters
SELECTION GUIDE1
Input Voltage Output Voltage
Order Code
FEATURES
• Industry standard footprint
• Short circuit protection
• High efficiency
• Under voltage lock out
• Fully adjustable output voltage
V (nom.)
V
NNL05-9
4
Adjustable
between
0.75 & 3.3
0
5.0
NNL05-10
12
Adjustable
between
0.75 & 5.0
0
5.0
• 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.
User Select
Voltage
VOUT
0.75
1.2
1.5
1.8
2.5
3.3
0.75
1.2
1.5
1.8
2.5
3.3
5.0
Efficiency
% (min.)
78
83
85
87
90
94
71
78
80
83
85
87
90
INPUT CHARACTERISTICS1
Parameter
Voltage range
• Operating temperature range
–40°C to 85°C
Output Current
Min. Load Full Load
A
A
Under voltage lock out
Reflected ripple current
Input no load current
Input standby current
Conditions
NNL05-9 VOUT < 2.75V
NNL05-9 VOUT > 3.0V
NNL05-10
Turn on threshold
NNL05-9
Turn off threshold
Turn on threshold
NNL05-10
Turn off threshold
NNL05-9
NNL05-10
VIN = 5.5V VOUT = 0.75V
NNL05-9
VIN = 5.5V VOUT = 3.3V
VIN = 12.0V VOUT = 0.75V
NNL05-10
VIN = 12.0V VOUT = 5.0V
Module Disabled
Min.
3.0
4.0
10.0
Typ.
Max.
5.5
5.5
14.0
2.11
1.96
7.85
7.75
8.25
8.20
12.0
20.0
70
100
15
75
5.0
Units
V
V
mA p-p
mA
mA
OUTPUT CHARACTERISTICS
Parameter
Conditions
TA = –40°C to 85°C
Rated current
(see thermal performance characteristics)
Voltage set point accuracy Using 1% tolerance resistor
NNL05-9
Line regulation
Low line to high line
NNL05-10
NNL05-9
0% load to 100% load
Load regulation
NNL05-10
NNL05-9
BW = DC to 20MHz
Ripple & noise
with 1µF ceramic
NNL05-10 0.75V
and 10µF tantalum
NNL05-10 5.0V
Peak deviation
NNL05-9
IOUT = 2.5A–5.0A–2.5A Settling time
Transient response
Peak deviation
NNL05-10
IOUT = 2.5A–5.0A–2.5A Settling time
Current limit inception
Min.
Typ.
-2.0
30
9
20
60
25
70
35
9.0
Max.
Units
5.0
A
+2.0
1.0
0.1
1.0
0.2
%
%
%
mV p-p
mV
µs
mV
µs
A
1 Specifications typical at TA =25°C, nominal input voltage and rated output current unless otherwise specified.
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NDC NNL05.3
1
NNL05 SERIES
Non-Isolated DC/DC Converters
ABSOLUTE MAXIMUM RATINGS
Short circuit protection
Input voltage VIN
Trim voltage
Remote on/off
Continuous
6.0V
15.0V
-0.35V to VOUT
-0.3V to VOUT
-0.35V to 6.0V
-0.3V to +VOUT
0%
NNL05-9
NNL05-10
NNL05-9
NNL05-10
NNL05-9
NNL05-10
Minimum load
GENERAL CHARACTERISTICS1
Parameter
Switching frequency
MTTF
Min.
NNL05-9
NNL05-10
Start delay
MTTF figures calculated by MIL-HDBK-217F ground
benign. Ambient temperature 25°C, airflow 200LFM.
Conditions
MTTF (Hrs)
NNL05-9 VIN = 5.5V, VOUT = 3.3V
995057
NNL05-10 VIN = 12.0V, VOUT = 5.0V
420454
Conditions
0
Module on
(or pin unconnected)
NNL05-9
Module off
Remote on/off
Module on
(or pin unconnected)
NNL05-10
Typ.
300
5.0
7.0
2.6
1.0
0
Units
kHz
ms
0.5
-0.4
VIN
2.5
0.125
Module off
Max.
0.5
-0.4
VIN
1.0
V
mA
V
mA
V
mA
V
mA
Max.
85
125
Units
°C
°C
ENVIRONMENTAL CHARACTERISTICS1
Parameter
Operation
Storage
Over temperature
protection
Conditions
See thermal performance characteristics
Absolute max. internal temperature
NNL05-9
Operates at substrate
temperature
NNL05-10
Min.
-40
-55
Typ.
110
118
°C
OUTPUT VOLTAGE ADJUSTMENT
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 resistor as shown in fig.1 or by applying a voltage
between trim and GND pins as shown in fig.2.
Fig.1
VIN
VOUT
NNL05
TRIM
RTRIM
To calculate the resistor value for NNL05-9:
RTRIM =
GND
21070
– 5110 Ω
VOUT – 0.75
Table 1: NNL05-9 RTRIM & VTRIM
VOUT SET (V)
RTRIM (kΩ)
0.75
Open
1.2
41.71
1.5
22.98
1.8
14.96
2.5
6.93
3.3
3.15
VTRIM (V)
Open
0.624
0.573
0.505
0.403
0.267
Table 2: NNL05-10 RTRIM & VTRIM
VOUT SET (V)
RTRIM (kΩ)
0.75
Open
1.2
22.46
1.5
13.05
1.8
9.024
2.5
5.009
3.3
3.122
5.0
1.472
VTRIM (V)
Open
0.670
0.650
0.630
0.583
0.530
0.4166
To calculate the resistor value for NNL05-10:
RTRIM =
10500
– 1000 Ω
VOUT – 0.7525
To calculate VTRIM for NNL05-9:
VTRIM = (0.7–0.1698 x {VOUT – 0.7525})
To calculate VTRIM for NNL05-10:
VTRIM = (0.7–0.0667 x {VOUT – 0.7525})
Tables 1 & 2 provide RTRIM and VTRIM Values for
the most commonly required output voltages.
Fig.2
VIN
VOUT
NNL05
TRIM
VTRIM
GND
1 Specifications typical at TA =25°C, nominal input voltage and rated output current unless otherwise specified.
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NDC NNL05.3
2
NNL05 SERIES
Non-Isolated DC/DC Converters
EFFICIENCY v LOAD GRAPHS (NNL05-9)
VOUT = 3.3V
VOUT = 2.5V
VOUT = 1.8V
VOUT = 1.5V
VOUT = 1.2V
VOUT =0.75V
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NDC NNL05.3
3
NNL05 SERIES
Non-Isolated DC/DC Converters
EFFICIENCY v LOAD GRAPHS (NNL05-10)
VOUT = 5.0V
VOUT = 3.3V
VOUT = 2.5V
VOUT = 1.8V
VOUT = 1.5V
VOUT =1.2V
VOUT =0.75V
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NDC NNL05.3
4
NNL05 SERIES
Non-Isolated DC/DC Converters
THERMAL DERATING GRAPHS (NNL05-9)
VOUT = 3.3V
VOUT = 2.5V
VOUT = 1.8V
VOUT = 1.5V
VOUT = 1.2V
VOUT =0.75V
All derating graphs shown are for an input voltage, VIN = 5.5V
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NDC NNL05.3
5
NNL05 SERIES
Non-Isolated DC/DC Converters
THERMAL DERATING GRAPHS (NNL05-10)
VOUT = 5.0V
VOUT = 3.3V
VOUT = 2.5V
VOUT = 1.8V
VOUT = 1.5V
VOUT =1.2V
VOUT =0.75V
All derating graphs shown are for an input voltage, VIN = 14.0V
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NDC NNL05.3
6
NNL05 SERIES
Non-Isolated DC/DC Converters
CHARACTERISTIC GRAPHS (NNL05-9)
TYPICAL OUTPUT RIPPLE & NOISE
TYPICAL OUTPUT RIPPLE & NOISE
VIN = 5.0VDC VOUT = 3.3V IOUT = 5.0A
VIN = 5.0VDC VOUT = 0.75V IOUT = 5.0A
TYPICAL START-UP FROM APPLICATION OF VIN
TYPICAL START-UP USING REMOTE ON/OFF
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NDC NNL05.3
7
NNL05 SERIES
Non-Isolated DC/DC Converters
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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NDC NNL05.3
8
NNL05 SERIES
Non-Isolated DC/DC Converters
MECHANICAL DIMENSIONS
SURFACE MOUNT PACKAGE STYLE (BOTTOM VIEW)
PIN CONNECTIONS
Pin
1
2
3
4
5
Function
On/Off
VIN
GND
Trim
VOUT
PACKAGE WEIGHT
X (NNL05-9) = 0.26(6.6)
X (NNL05-10) = 0.23(5.9)
Coplanarity = 150microns
TRAY DIMENSIONS (TOP VIEW)
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.
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
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2.3g
2.7g
PICK-UP POINT
Tray quantity: 56
† +0.020(0.5)
-0.00(0.0)
© C&D Technologies (NCL) Limited 2005
NNL05-9
NNL05-10
Unless otherwise stated all dimensions
in inches(mm) ±0.01(0.25).
C&D Technologies (NCL) Ltd
Tanners Drive, Blakelands North
Milton Keynes MK14 5BU, England
C&D Technologies, Inc.
3400 E Britannia Drive, Tucson,
Arizona 85706, USA
Tel: +44 (0)1908 615232
Fax: +44 (0)1908 617545
email: [email protected]
Tel: +1 (800) 547-2537
Fax: +1 (520) 741-4598
email: [email protected]
NDC NNL05.3
9