PL10S-05 Non Isolated DC/DC Converters
Long Form Datasheet
Features
• Synchronous Rectification
• Non-Isolated
• Fixed Frequency
• Nominal Input Voltage Range from (3-5V)
• Output Voltage Adjustable with the Trim Function (0.9 to 3.3V)
• Current Limit and Short-Circuit Protection using Hiccup Mode
and Auto-Restart
• Over Temperature Protection
• Up to 95% efficiency at 3.3V output
• Input Logic Shutdown
• Positive and Negative Remote Sense Pins (optional)
• Wide Operation Temperature Range –40°C to 85°C
• UL/BSI EN60950 approved
Description
Lambda’s 5V SIP power modules are non-isolated dc-dc converters that can deliver up to 10A of
output current with full load efficiency of 95% at 3.3V output.
Lambda’s PL10 Series offers designers the choice of models with either customer selectable output
voltages or factory set output voltage.
With the customer selectable model the output is set by a fixed value resistance (see section 1.51,
1.52, 1.53) This model is identified with a suffix C on the part number description, as donated in
the nomenclature and its output voltage is set to 0.9V (see page 26).
The factory set voltage model requires identification on the part number description, eg. PL10S05-3V3-K (see page 26).
For the purpose of this Application Note, values of 0.9V, 1.5V, 2.5V and 3.3V have been used to
illustrate the parameters and the characteristics at these voltages.
For details of other output voltage parameters please contact Lambda UK.
Applications
• Distributed power architectures
• Communication equipment
• Computer equipment
• Workstations and Servers
• Latest generation IC’S (DSP, FPGA, ASIC) and Microprocessor powered applications
LAMBDA UK Web: www.lambda-gb.com Tel: +44 (0) 1271 856666
1 E-Mail: intouch@lambdaeu.com Fax: +44 (0) 1271 864894
Spec 69350 – Rev.6
PL10S-05 Non Isolated DC/DC Converters
Long Form Datasheet
Input / Output Selection table
Input
Voltage
3-5.5Vdc 0.9V 10A 9W 78% 81% 83%
3-5.5Vdc 1.2V 10A 12W 82% 44% 86%
3-5.5Vdc 1.5V 10A 15W 85.5% 87% 89%
3-5.5Vdc 1.8V 10A 18W 87% 88% 90%
3.3-5.5Vdc 2.5V 10A 25W 90% 91% 93%
4.5-5.5Vdc 3.3V 10A 33W 93% 95%
Note: All the measurements are taken at +25°C ambient temperature
Absolute Maximum Ratings
Note: Use beyond the maximum ratings may cause a reliability degradation of the DC/DC
converter or may permanently damage the device.
Output
Voltage
Parameter Symbol Min Typical Max Unit
Input Voltage (Continuous) Vin 3 5 5.5 V
ON/OFF Terminal Voltage Von/off 0 5.5 V
Operating Ambient Temperature Tamb -40 85
Storage Temperature Tstor -65 150
Max.
Output
current
Max.
Output
Power
Min Efficiency
3.3V I/P@10A O/P
Min Efficiency
5V I/P@10A O/P
Typical Efficiency
5V I/P@10A
°C
°C
General Specifications
Parameter Symbol Min Typical Max Units
Efficiency at full output power See the table
above
Switching Frequency Fosc 300 KHZ
Output Voltage Trim Range
(See section 1.5)
Calculated MTBF
Calculated using Bellcore (V3.1-BELL4 or V3.1-BELL3) ,Ta=
25°C, full power.
Remote Sense Compensation 200 mV
Turn On Voltage Threshold 2.63 2.8 2.95 V
Turn Off voltage Threshold 2.47 2.7 2.9 V
Duty Cycle Ratio D 75 %
Weight 7 g
Note: All the measurements are taken at +25°C ambient temperature
0.9 3.3 V
6 Mhours
%
LAMBDA UK Web: www.lambda-gb.com Tel: +44 (0) 1271 856666
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Spec 69350 – Rev.6
PL10S-05 Non Isolated DC/DC Converters
A
Long Form Datasheet
1.1) Vo=0.9V
Input Specifications
Vo= 0.9V
Parameter Symbol Min Typical Max Units
Operating Input Voltage Vin 3 5 5.5 V
Input Current 3.7 A
No Load Input Current 51 mA
Remote Off Input Current 5.5 mA
Input Reflected Ripple Current 0.26
Input Reflected Ripple Current (P-P) 0.92 mApk
Inrush Current Transient 0.0375
Note: All the measurements are taken at +25°C ambient temperature
Output Specifications
Vo=0.9V
Parameter Module Symbol Min Typical Max Units
Output Voltage Adjustments Vout 0.9 3.3 V
Load Regulation 10 mV
Line Regulation 1.7 mV
Output Ripple and Noise
(20MHZ BW)
Output Current Range Iout 0 10 A
Output DC Current Limit Ilim 11 20 A
Rise up time 2.52 ms
Overshoot at Turn On 0 %
Output Capacitance 3300 uF
Note: All the measurements are taken at +25°C ambient temperature
20 45 mVp-p
m
A
rms
2
s
Transient Response
Vo= 0.9V
Parameter Symbol Min Typical Max Units
Peak deviation for 50% to 100% step load,
di/dt = 100mA/us
Vin = 5V
Vin= 3.3V
Settling Time to within 1% of output set point
Vin = 5V
Vin= 3.3V
Peak deviation for 100% to 50% step load,
di/dt = 100mA/us
Vin = 5V
Vin= 3.3V
Settling Time to within 1% of output set point
Vin = 5V
Vin= 3.3V
Note: All the measurements are taken at +25°C ambient temperature
LAMBDA UK Web: www.lambda-gb.com Tel: +44 (0) 1271 856666
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Spec 69350 – Rev.6
Vdynamic
Vdynamic
Ts
Ts
Vdynamic
Vdynamic
Ts
Ts
65
86
40
44
90
76
80
44
mV
mV
us
us
mV
mV
us
us
PL10S-05 Non Isolated DC/DC Converters
0.9V Output Efficency
Output Current (A)
Efficency %
Start-Up From Vin
Long Form Datasheet
CHARACTERISTIC CURVES-0.9V Model
90
88
86
84
82
80
78
0 1 2 3 4 5 6 7 8 9 10 11
3.3V Efficency
5V Efficency
Efficiency Curve
(Vin=5V, Vo=0.9V, Io=10A)
Transient Response Transient Response
(Vin = 5V, Vo=0.9V 50% to 100% Load Step) ( Vin = 5V, Vo=0.9V 100% to 50% Load Step)
Short Circuit Output ripple
(Vin = 5V, Vo Short) ( Vin=5v, Io=10A)
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Spec 69350 – Rev.6
LAMBDA UK Web: www.lambda-gb.com Tel: +44 (0) 1271 856666
PL10S-05 Non Isolated DC/DC Converters
A
Long Form Datasheet
1.2) Vo=1.5V
Input Specifications
Vo= 1.5V
Parameter Symbol Min Typical Max Units
Operating Input Voltage Vin 3 5 5.5 V
Input Current 5.8 A
No Load Input Current 67 mA
Remote Off Input Current 5.5 mA
Input Reflected Ripple Current 2.04
Input Reflected Ripple Current (P-P) 7 mApk
Inrush Current Transient 0.0375
Note: All the measurements are taken at +25°C ambient temperature
Output Specifications
Vo=1.5V
Parameter Module Symbol Min Typical Max Units
Output Voltage adjustment Vout 0.9 3.3 V
Load Regulation 5 mV
Line Regulation 4 mV
Output Ripple and Noise
(20MHZ BW)
Output Current Range Iout 0 10 A
Output DC Current Limit Ilim 11 20 A
Turn on Time 2.28 ms
Overshoot at Turn On 0 %
Output Capacitance 3300 uF
Note: All the measurements are taken at +25°C ambient temperature
30 45 mVp-p
m
A
rms
2
s
Transient Response
Vo=1.5V
Parameter Symbol Min Typical Max Units
Peak deviation for 50% to 100% step load,
di/dt = 100mA/us
Vin = 5V
Vin= 3.3V
Settling Time to within 1% of output set point
Vin = 5V
Vin= 3.3V
Peak deviation for 100% to 50% step load,
di/dt = 100mA/us
Vin = 5V
Vin= 3.3V
Settling Time to within 1% of output set point
Vin = 5V
Vin= 3.3V
Note: All the measurements are taken at +25°C ambient temperature
LAMBDA UK Web: www.lambda-gb.com Tel: +44 (0) 1271 856666
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Spec 69350 – Rev.6
Vdynamic
Vdynamic
Ts
Ts
Vdynamic
Vdynamic
Ts
Ts
45
98
35
85
72
88
45
50
mV
mV
us
us
mV
mV
us
us
PL10S-05 Non Isolated DC/DC Converters
1.5V Output Efficency
Output Current (A)
Efficency %
3.3V Efficency
Long Form Datasheet
CHARACTERISTIC CURVES-1.5V Model
94
92
90
88
86
84
0 1 2 3 4 5 6 7 8 9 10 11
Efficiency Curve Start Up-From Vin
(Vin=5V, Io = 10A)
5V Efficency
Transient Response Transient Response
(Vin = 5V, Vo=1.5V 50% to 100% Load Step) (Vin = 5V, Vo=1.5V 100% to 50% Load Step)
Short Circuit Output Ripple
(Vin = 5V, Vo Short) (Vin=5V, Io=10A)
LAMBDA UK Web: www.lambda-gb.com Tel: +44 (0) 1271 856666
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Spec 69350 – Rev.6
PL10S-05 Non Isolated DC/DC Converters
A
Long Form Datasheet
1.3) Vo=2.5V
Input Specifications
Vo= 2.5V
Parameter Symbol Min Typical Max Units
Operating Input Voltage Vin 3.3 5 5.5 V
Input Current 9.1 A
No Load Input Current 79 mA
Remote Off Input Current 5.5 mA
Input Reflected Ripple Current 2.53
Input Reflected Ripple Current (P-P) 8 mApk
Inrush Current Transient 0.0375
Note: All the measurements are taken at +25°C ambient temperature
Output Specifications
Vo=2.5V
Parameter Module Symbol Min Typical Max Units
Output Voltage adjustment Vout 0.9 3.3 V
Load Regulation 10 mV
Line Regulation 5.7 mV
Output Ripple and Noise
(20MHZ BW)
Output Current Range Iout 0 10 A
Output DC Current Limit Ilim 11 20 A
Rise up Time 2.56 ms
Overshoot at Turn On 0 %
Output Capacitance 3300 uF
Note: All the measurements are taken at +25°C ambient temperature
32 45 mVp-p
m
A
rms
2
s
Transient response
Vo= 2.5
Parameter Symbol Min Typical Max Units
Peak deviation for 50% to 100% step load,
di/dt = 100mA/us
Vin = 5V
Vin= 3.3V
Settling Time to within 1% of output set point
Vin = 5V
Vin= 3.3V
Peak deviation for 100% to 50% step load,
di/dt = 100mA/us
Vin = 5V
Vin= 3.3V
Settling Time to within 1% of output set point
Vin = 5V
Vin= 3.3V
Note: All the measurements are taken at +25°C ambient temperature
LAMBDA UK Web: www.lambda-gb.com Tel: +44 (0) 1271 856666
7 E-Mail: intouch@lambdaeu.com Fax: +44 (0) 1271 864894
Spec 69350 – Rev.6
Vdynamic
Vdynamic
Ts
Ts
Vdynamic
Vdynamic
Ts
Ts
75
130
60
105
66
104
60
72
mV
mV
us
us
mV
mV
us
us
PL10S-05 Non Isolated DC/DC Converters
2.5V Output Efficency
Efficency%
3.3V Efficency
Long Form Datasheet
CHARACTERISTIC CURVES-2.5V Model
96
95
94
93
92
91
90
89
0 1 2 3 4 5 6 7 8 9 10 11
Output Current (A)
5V Efficency
Efficiency Curve Start up from Vin
(Vin = 5V , Io = 10A)
Transient Response Transient Response
(Vin = 5V, Vo=2.5V 50% to 100% Load Step) (Vin = 5V, Vo=2.5V 100% to50% Load Step)
Short Circuit Output ripple
(Vin = 5V, Vo Short) (Vin=5V, Io=10A)
LAMBDA UK Web: www.lambda-gb.com Tel: +44 (0) 1271 856666
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Spec 69350 – Rev.6
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