LDO10C Series | 10 A DC-DC
C Class Non-Isolated DC-DC Converter
LDO10C SERIES
10 A current rating
Single Output
Input voltage range 3.0-13.8 V
Adjustable output voltage: 0.59-5.1 V
• Optional 3-pin model factory set
• Optional 5-pin model factory set with power good option
Excellent transient reponse
Power enable (5-pin model)
Minimum airflow
Small package
Termination voltage capacity
RoHS Compliant
The LDO10C is a new high density, open
frame, non-isolated converter for space
sensitive applications. This model has a
wide input range of 3-13.8 V and offers a
0.59-5.1 V adjustable output with
10 A capability. Typical efficiency for
this model is 91% (12 Vin, 2.5 Vout, 10 A
load). The 5-pin version of this voltage
device offers the additional features
of enable, and with a default wide
adjustable out voltage range or option of
power good.
[ 2 YEAR WARRANTY ]
File Name: lf_ldo10.pdf Rev: (01) 11 Sep 2008
LDO10C Series | 10 A DC-DC
C Class Non-Isolated DC-DC Converter
Stresses in excess of the maximum ratings can cause permanent damage to the device. Operation of the device is not implied at these or
any other conditions in excess of those given in the specification. Exposure to absolute maximum ratings can adversely affect device reli-
Absolute Maximum Ratings
Characteristic
Symbol
Min
Typ
Max
Units
Notes and Conditions
Input voltage - continuous
Enable
Pgood Voltage
Operating temperature
Vin (cont)
VEn (max
VPgood (max)
Top
3.0
13.8
3.3
5.0
3.3
5.0
Vdc
V
V
V
V
˚C
Vin(+) - Vin(-)
When Vin < 5 V
When Vin > 5 V
When Vin < 5 V
When Vin > 5 V
Measured at thermal refer-
ence points, See Note 1. See
Derating curves
-40
85
Storage temperature
Output current
Tstorage
Iout (max)
-40
125
10
˚C
A
All specifications are typical at nominal input Vin =5 V and 12 V, full load under any resistive load combination at 25
˚C,
unless otherwise stated.
Input Characteristics
Characteristic
Symbol
Min
Typ
Max
Units
Notes and Conditions
Input voltage - operating
Input current - no load
Input current - quiescent
Input voltage variation
Vin
Iin
Iin(off)
dv/dt
3.0
80
10
1.0
13.8
Vdc
mA
mA
V/ms
Vin (min) - Vin (max), enabled
Converter disabled
Product was tested at
1.2 V/ms. Much higher dv/dt
is possible (>10 V/ms)
Turn On/Off
Characteristic
Symbol
Min
Typ
Max
Units
Notes and Conditions
Input voltage - turn on
Input voltage - turn off
Turn on delay - enabled,
then power applied
Vin (on)
Vin (off)
Tdelay
(power)
2.8
2.5
2
3
Vdc
Vdc
ms
See App Note 186 to adjust
this point
With the Remote ON/OFF
signal asserted, this is the time
from when the input voltage
reaches the minimum speci-
fi
ed operating voltage until
Vout is in regulation
Vin = Vin(on), then Remote
ON/OFF asserted. This is
the time taken until Vout is in
regulation
from 10% to 90%; full resistive
load, 0
μF
capacitance
Turn on delay - power
applied, then Remote ON/OFF
asserted
Rise time
Tdelay
(Remote
ON/OFF)
Trise
2
3
ms
1.3
2
ms
2
File Name: lf_ldo10.pdf Rev: (01) 11 Sep 2008
LDO10C Series | 10 A DC-DC
C Class Non-Isolated DC-DC Converter
Signal Electrical Interface
Characteristic - Signal Name
Symbol
Min
Typ
Max
Units
Notes and Conditions
Remote ON/OFF
Control pin open circuit
voltage
3.3 V
5V
12 V
Vih
0.61
0.92
2.2
Vdc
See Application Note 186
Iih = 0
μA;
open circuit voltage
See Notes 2 and 3
High level input current
Iih
1
μA
Current
fl
owing into control pin
when pin is pulled high (max.
at Vih = 5 V)
Converter guaranteed on
when control pin is greater
than Vih (min)
Converter guaranteed off
when control pin is less than
Vil (max)
Vil = 0 Vdc
High level input voltage
Vih
.502
Vdc
Low level input voltage
Vil
0.202
Vdc
Low level input current
3.3 V
5V
12 V
Iil (max)
110
166
398
μA
Reliability and Service Life
Characteristic
Symbol
Min
Typ
Max
Units
Notes and Conditions
Mean time between failure
MTBF
Hours
MIL-HDBK-217F
Vin = Vin (nom); Iout = Iout
(max); ambient 25 ºC;
ground benign environment
Telcordia SR-332
Issue 2, ground benign,
ambient 40 ºC, Vin = Vin
(nom)-Iout = Iout (max)
Mean time between failure
MTBF
8,220,210
Hours
Other Specifications
Characteristic
Symbol
Min
Typ
Max
Units
Notes and Conditions
Switching frequency
Weight
Fsw
620
1.899/0.067
kHz
g/oz.
Fixed frequency
3
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File Name: lf_ldo10.pdf Rev: (01) 11 Sep 2008
LDO10C Series | 10 A DC-DC
C Class Non-Isolated DC-DC Converter
Environmental Specifications
Characteristic
Symbol
Min
Typ
Max
Units
Notes and Conditions
Thermal performance
Type
Parameter
0
Reference
70
Test Level
˚C
(See Note 1 and individual derat-
ing curves)
Notes and Conditions
Air temperature operating
Air temperature non-operating
-40
˚C
to 85
˚C
-40
˚C
to 125
˚C
Max. rate of change is 30 degrees
per hour while operating and 20
degrees per hour while non-op-
erating
With non-condensing
Excluding rain during parts ship-
ment
Sinusoidal vibration, 0.5 G (0 to
peak) acceleration.
Sinusoidal vibration, 1.0 G (0 to
peak)
Relative humidity - operating
Relative humidity - non-operating
Vibration - operating
Vibration - non-operating
Shock
Non-operating square wave
Non-operating half sine
80%
100%
Accerlation
40 G, square wave at 200 in/s
(508 cm/s); on all six sides
Half sine pulse for 70 in/s (178
cm/s) for 2 ms; on all sides except
top
Half sine pulse for 40 in/s (102
cm/s) for 2 ms; on all sides except
top
Operating half sine
Safety Agency Approvals
Characteristic
UL/cUL
TÜV Product Service
UL/cUL60950
IEC 60950
Material Ratings
Characteristic Signal Name
Notes and Conditions
Flammability rating
Material type
UL94V-0
FR4 PCB
Model Numbers
Model
Number
Input
Voltage
Output
Voltage
Output Current
(Max.)
Efficiency
at Full Load
Max. Load
Regulation
LDO10C-005W05-SXJ*
LDO10C-005W05-HXJ*
LDO10C-005W05-VXJ*
X = Custom Option
3.0-13.8 V
3.0-13.8 V
3.0-13.8 V
0.59-5.1 V
0.59-5.1 V
0.59-5.1 V
10 A
10 A
10 A
92%
92%
92%
±0.5%
±0.5%
±0.5%
RoHS Compliance Ordering Information
The ‘J’ at the end of the part number
indicates that the part is Pb-free
(RoHS 6/6 compliant). TSE RoHS 5/6
(non PB-free) compliant versions may
be available on special request, please
contact your local sales representative
for details.
4
4
File Name: lf_ldo10.pdf Rev: (01) 11 Sep 2008
LDO10C Series | 10 A DC-DC
C Class Non-Isolated DC-DC Converter
3.3 V, 5 V, 12 V Model
0.9 V Setpoint
Input Characteristics
Characteristic
Symbol
Min
Typ
Max
Units
Notes and Conditions
Input current - operating
(Source) (3.3 V)
(Sink) (3.3 V)
(Source) (5 V)
(Sink) (5 V)
(Source) (12 V)
(Sink) (12 V)
Iin
Iin
Iin
Iin
Iin
Iin
Cinput
Cbypass
3.47
-2.00
2.24
-1.35
0.98
-0.55
Adc
Adc
Adc
Adc
Adc
Adc
Vin = Vin (nom); Iout = Iout
(max)
Input capacitance - internal
fi
lter
Input capacitance - external
fi
lter
22
1
μF
μF
Recommended customer
added capacitance
3.3 V, 5 V, 12 V Model
0.9 V Setpoint
Electrical Characteristics
- O/P
Characteristic
Symbol
Min
Typ
Max
Units
Notes and Conditions
Nominal set-point voltage
Line regulation
Load regulation
Vo (nom)
0.891
0.9
0.909
±0.2
±0.5
Vdc
%
%
Vin = Vin (nom); Iout = Iout
(nom)
Iout = Iout (nom); Vin (min) to
Vin (max)
Vin = Vin (nom); Iout (min) to
Iout (max)
Minus indicates sink mode
Continuous, unit auto recovers
See Application Note 186 for
more information
Output current - continuous
Output current - short circuit
Iout
Isc
0
20.6
10.0
Adc
Apk
Output voltage - noise
(3.3 V) 0.9 V
(5.0 V) 0.9 V
(12 V) 0.9 V
Vp-p
Vp-p
Vp-p
15
15
25
mV pk-pk
mV pk-pk
mV pk-pk
Measurement band width
20 MHz
See Application Note 186 for
details
3.3 V, 5 V, 12 V Model
0.9 V Setpoint
Electrical Characteristics
- O/P
Characteristic
Symbol
Min
Typ
Max
Units
Notes and Conditions
Load transient response -
peak deviation
Load transient response -
recovery
External load capacitance
(3.3 V)
Vdynamic
100
100
mV
Peak deviation for 50% to
100% step load, di/dt =
10 A/μs
Settling time to within 1% of
output set-point voltage for
50% to 75% step load
See Application Note 186
for output capacitance vs.
stability
Trecovery
20
μs
Cext
0
8400
μF
5
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File Name: lf_ldo10.pdf Rev: (01) 11 Sep 2008
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