YNV05T10 DC-DC Converter Data Sheet
3.0-5.5 VDC Input; 0.7525-3.63 VDC Programmable @ 10A
The
Products: Y-Series
Features
RoHS lead free solder and lead solder exempted
products are available
Delivers up to 10 A (36.3 W)
No derating up to 85
C
Industry-standard footprint and pinout
Single-in-Line Package (SIP): 2.0” x 0.535” x 0.28”
(50.8 x 13.59 x 7.11 mm)
Weight: 0.26 oz [7.28 g]
Synchronous Buck Converter topology
Start-up into pre-biased output
No minimum load required
Programmable output voltage via external resistor
Operating ambient temperature: -40 °C to 85 °C
Remote output sense
Remote ON/OFF (positive or negative)
Fixed-frequency operation
Auto-reset output overcurrent protection
Auto-reset overtemperature protection
High reliability, MTBF = TBD million hours
All materials meet UL94, V-0 flammability rating
UL 60950 recognition in U.S. & Canada, and DEMKO
certification per IEC/EN 60950
Applications
Intermediate Bus Architectures
Telecommunications
Data communications
Distributed Power Architectures
Servers, workstations
Benefits
High efficiency – no heat sink required
Reduces total solution board area
Minimizes part numbers in inventory
Description
Power-One’s point-of-load converters are recommended for use with regulated bus converters in an
Intermediate Bus Architecture (IBA). The YNV05T10 non-isolated DC-DC converter delivers up to 10 A of
output current in an industry-standard through-hole Single In-Line Package (SIP). Operating from a 3.0 – 5.5
V input, this converter is an ideal choice for Intermediate Bus Architectures where point-of-load power delivery
is generally a requirement. The YNV05T10 provides an extremely tight regulated programmable output
voltage from 0.7525 V to 3.63 V.
YNV05T10 converters provide exceptional thermal performance, even in high temperature environments with
minimal airflow. No derating is needed up to 85
C
under natural convection conditions. This is accomplished
through the use of circuitry, packaging, and processing techniques to achieve ultra-high efficiency and
excellent thermal management, along with a very sleek body profile.
The sleek body profile and the preclusion of heat sinks minimize impedance to system airflow, thus enhancing
cooling for both upstream and downstream devices. The use of 100% automation for assembly, coupled with
advanced power electronics and thermal design, results in a product with extremely high reliability.
MCD10198 Rev. 1.0, 23-Jun-10
Page 1 of 26
www.power-one.com
YNV05T10 DC-DC Converter Data Sheet
3.0-5.5 VDC Input; 0.7525-3.63 VDC Programmable @ 10A
Electrical Specifications
Conditions: T
A
=25ºC, Airflow=200 LFM (1 m/s), Vin=5 VDC, Vout = 0.7525 - 3.63V, unless otherwise specified.
PARAMETER
ABSOLUTE MAXIMUM RATINGS
Input Voltage
Operating Ambient Temperature
Storage Temperature
Continuous
NOTES
MIN
-0.3
-40
-55
TYP
MAX UNITS
6
85
125
VDC
°C
°C
kHz
3.63
0.5
VDC
VDC
ms
ms
ms
0.8
5.5
5.5
0.8
VDC
VDC
VDC
VDC
FEATURE CHARACTERISTICS
Switching Frequency
Output Voltage Programming Range
1
Remote Sense Compensation
Turn-On Delay Time
2
1
300
By external resistor, See Trim Table 1
Full resistive load
From Vin = Vin(min) to Vo=0.1* Vo(nom)
From enable to Vo= 0.1*Vo(nom)
From 0.1*Vo(nom) to 0.9*Vo (nom)
3
0.7525
With Vin = (Converter Enabled, then Vin applied)
With Enable (Vin = Vin(nom) applied, then enabled
Rise time (Full resistive load)
ON/OFF Control (Positive Logic)
Converter Off
Converter On
ON/OFF Control (Negative Logic)
Converter Off
Converter On
Note:
3
2
3.5
3.5
3.5
-5
2.4
2.4
-5
1. The output voltage should not exceed 3.63V (taking into account both the programming and remote sense compensation).
2. Note that start-up time is the sum of turn-on delay time and rise time
3. The converter is on if ON/OFF pin is left open.
MCD10198 Rev. 1.0, 23-Jun-10
Page 2 of 26
www.power-one.com
YNV05T10 DC-DC Converter Data Sheet
3.0-5.5 VDC Input; 0.7525-3.63 VDC Programmable @ 10A
Electrical Specifications (continued)
Conditions: T
A
=25ºC, Airflow=200 LFM (1 m/s), Vin=5 VDC, Vout = 0.7525 - 3.63V, unless otherwise specified.
PARAMETER
INPUT CHARACTERISTICS
Operating Input Voltage Range
Input Under Voltage Lockout
Turn-on Threshold
Turn-off Threshold
Maximum Input Current
Vin = 4.5V, Iout = 10A
Vin = 3.0V, Iout = 10A
Vin = 3.0V, Iout = 10A
Vin = 3.0V, Iout = 10A
Vin = 3.0V, Iout = 10A
Vin = 3.0V, Iout = 10A
Vin = 3.0V, Iout = 10A
Vin = 3.0V, Iout = 10A
Input Stand-by Current (Converter disabled)
Input No Load Current (Converter enabled)
V
OUT
= 3.3 VDC
V
OUT
= 2.5 VDC
V
OUT
= 2.0 VDC
V
OUT
= 1.8 VDC
V
OUT
= 1.5 VDC
V
OUT
= 1.2 VDC
V
OUT
= 1.0 VDC
NOTES
For Vout
2.5V
For Vout
2.5V
MIN
4.5
3.0
TYP
5.0
5.0
2.05
MAX UNITS
5.5
5.5
2.15
VDC
VDC
VDC
VDC
7.8
9
7.3
6.7
5.7
4.7
4.0
3.3
ADC
ADC
ADC
ADC
ADC
ADC
ADC
ADC
mA
mA
mA
mA
mA
mA
mA
mA
mA
mA
P-P
1.75
1.9
V
OUT
= 0.7525 VDC
Vin = 5.0 VDC
Vin = 5.5 VDC
V
OUT
= 3.3 VDC
V
OUT
= 2.5 VDC
V
OUT
= 2.0 VDC
V
OUT
= 1.8 VDC
V
OUT
= 1.5 VDC
V
OUT
= 1.2 VDC
V
OUT
= 1.0 VDC
V
OUT
= 0.7525 VDC
See Fig. G for setup. (BW=20MHz)
90
85
80
75
70
65
60
50
15
10
Input Reflected-Ripple Current -
i
s
MCD10198 Rev. 1.0, 23-Jun-10
Page 3 of 26
www.power-one.com
YNV05T10 DC-DC Converter Data Sheet
3.0-5.5 VDC Input; 0.7525-3.63 VDC Programmable @ 10A
Electrical Specifications (continued)
Conditions: T
A
=25ºC, Airflow=200 LFM (1 m/s), Vin=5 VDC, Vout = 0.7525 - 3.63V, unless otherwise specified.
PARAMETER
OUTPUT CHARACTERISTICS
Output Voltage Set Point (no load)
Output Regulation
1
NOTES
MIN
-1.5
TYP
Vout
MAX UNITS
+1.5
%Vout
%Vout
%Vout
+3
%Vout
Over Line
Over Load
Output Voltage Tolerance
(Over all operating input voltage, resistive load
and temperature conditions until end of life )
Output Ripple and Noise - 20MHz bandwidth (Fig. G)
Peak-to-Peak
Peak-to-Peak
External Load Capacitance
Min ESR > 1mΩ
Min ESR > 10 mΩ
Output Current Range
Output Current Limit Inception (I
OUT
)
Output Short- Circuit Current (Hiccup mode)
Vin = 3.0V – 5.5V, Full resistive load
From no load to full load
-3
Over line, load and temperature
Vout = 3.3V Full load
Vout = 0.7525V Full load
Plus full load (resistive)
0.2
0.4
40
20
70
40
1,000
5,000
mV
P-P
mV
P-P
μF
μF
A
A
Arms
0
15
Short=10 mΩ, continuous
Co = 100
μF
ceramic + 1
μF
ceramic
Co = 100
μF
ceramic + 1
μF
ceramic
Full load (5A)
V
OUT
= 3.3 VDC
V
OUT
= 2.5 VDC
V
OUT
= 2.0 VDC
V
OUT
= 1.8 VDC
V
OUT
= 1.5 VDC
V
OUT
= 1.2 VDC
V
OUT
= 1.0 VDC
V
OUT
= 0.7525 VDC
95.5
93.5
92.0
91.5
90.0
88.5
86.5
83.0
3
120
40
125
40
2
2
10
18.5
DYNAMIC RESPONSE
Load current change from 5A – 10A, di/dt = 5 A/μS
Settling Time (V
OUT
< 10% peak deviation)
Unloading current change 10A – 5A, di/dt =-5 A/μS
Settling Time (V
OUT
< 10% peak deviation)
mV
µs
mV
µs
%
%
%
%
%
%
%
%
EFFICIENCY
Note:
1. Trim resistor connected across the GND (pin 5) and TRIM pins of the converter.
2.
See waveforms for dynamic response and settling time for different output voltages.
MCD10198 Rev. 1.0, 23-Jun-10
Page 4 of 26
www.power-one.com
YNV05T10 DC-DC Converter Data Sheet
3.0-5.5 VDC Input; 0.7525-3.63 VDC Programmable @ 10A
Operation
Input Voltage Ripple [mV]
160
140
120
100
80
60
40
20
0
0
1
2
Vout [V]
3
4
Vin=5.0V
Vin=3.3V
Input and Output Impedance
The YNV05T10 non-isolated converter should be
connected via a low impedance to the DC power
source. In many applications, the inductance
associated with the distribution from the power
source to the input of the converter can affect the
stability of the converter. It is recommended to use
decoupling capacitors (minimum 47
μF)
placed as
close as possible to the converter input pins in
order to ensure stability of the converter and
reduce input ripple voltage. Internally, the
converter has 52 uF (low ESR ceramics) of input
capacitance.
In a typical application, low - ESR tantalum or
POS capacitors will be sufficient to provide
adequate ripple voltage filtering at the input of the
converter. However, very low ESR ceramic
capacitors 47
μF-100 μF
are recommended at the
input of the converter in order to minimize the
input ripple voltage. They should be placed as
close as possible to the input pins of the converter.
The YNV05T10 has been designed for stable
operation with or without external output
capacitance. Low ESR ceramic capacitors placed
as close as possible to the load (Min 47
μF)
are
recommended for improved transient performance
and lower output voltage ripple.
It is important to keep low resistance and low
inductance PCB traces when the connecting load
to the output pins of the converter in order to
maintain good load regulation.
140
Input Voltage Ripple [mV]
120
100
80
60
40
20
0
0
1
2
Vout [V]
3
4
Vin=5.0V
Vin=3.3V
Fig. B:
Input Voltage Ripple, C
IN
= 470
μF
polymer +
2x47μF ceramic
Fig. A shows input voltage ripple for various output
voltages using four 47
μF
input ceramic
capacitors. The same plot is shown in Fig. B with
one 470
μF
polymer capacitor (6TPB470M from
Sanyo) in parallel with two 47
μF
ceramic
capacitors at full load.
ON/OFF (Pin 10)
The ON/OFF pin is used to turn the converter on
or off remotely via a system signal. There are two
remote control options available, positive logic
(standard option) and negative logic, and both are
referenced to GND. Typical connections are
shown in Fig. C.
7,8
Vin
R*
10
Nex
-v
Series
Converter
TM
3
SENSE
1,2,4
ON/OFF
Vout
TRIM
9
Rload
Vin
6
GND
CONTROL
INPUT
GND
5
R* is for negative logic option only
Fig. C:
Circuit configuration for ON/OFF function.
The positive logic version turns the converter on
when the ON/OFF pin is at a logic high or left
open, and turns converter off when at a logic low
or shorted to GND.
The negative logic version turns the converter on
when the ON/OFF pin is at a logic low or left open,
and turns the converter off when the ON/OFF pin
is at a logic high or connected to Vin.
Fig. A:
Input Voltage Ripple, C
IN
= 4x47
μF
ceramic.
MCD10198 Rev. 1.0, 23-Jun-10
Page 5 of 26
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