YH09T40 40A DC-DC POL Converter
5V to 13.8V Input 0.6V to 3.63V Output
Data Sheet
Member of the
Applications
Low voltage, high density systems with
Intermediate Bus Architectures (IBA)
Point-of-load regulators for high performance
DSP, FPGA, ASIC, and microprocessors
Desktops, servers, and portable computing
Broadband, networking, optical, and
communications systems
Benefits
One part that covers many applications
Reduces board space, system cost and
complexity, and time to market
Family
Features
RoHS lead free and lead-solder-exempt products are
available
High efficiency multiphase synchronous buck
topology
Low noise fixed frequency operation
Wide input voltage range: 5V–13.8V
High continuous output current: 40A
Programmable output voltage range: 0.6V–3.63V
Overcurrent, output overvoltage, and overtemperature
protections with automatic restart
Remote differential output voltage sense
Power Good signal
Enable input
Start up into prebiased load
No minimum load requirements
High MTBF of 40.5 Million hours
Industry standard size through-hole low profile
package and pinout
1.45”x1.115” (36.83mm x 28.32mm)
Low height of 0.5” (12.7mm)
Wide operating temperature range: 0 to 70ºC
UL94 V-0 flammability rating
UL60950, CSA C22.2 No. 60950-00, and TUV
EN60950-1:2001
Description
Power-One’s point-of-load converters are recommended for use with regulated bus converters in an Intermediate
Bus Architecture (IBA). The YH09T40-0 non-isolated DC-DC point of load (POL) converter delivers up to 40A of
output current in an industry-standard horizontal through-hole package. The YH09T40-0 POL converter is an ideal
choice for Intermediate Bus Architectures where point of load conversion is a requirement.
Operating from a 5-13.8V input the POL converter provides an extremely tightly regulated programmable output
voltage of 0.6 V to 3.63V. The POL converter offers exceptional thermal performance, even in high temperature
environments with minimal airflow. This performance is accomplished through the use of advanced circuit
solutions, packaging and processing techniques. The resulting design possesses ultra-high efficiency, excellent
thermal management, and a slim body profile that minimizes impedance to system airflow, thus enhancing cooling
for both upstream and downstream devices. The use of automation for assembly, coupled with advanced power
electronics and thermal design, results in a product with extremely high reliability.
ZD-02095 Rev. 1.1, 18-Jun-10
www.power-one.com
Page 1 of 13
YH09T40 40A DC-DC POL Converter
5V to 13.8V Input 0.6V to 3.63V Output
Data Sheet
1.
Ordering Information
Y
H
09
T
40
–
0
z
Product
Family
Profile
Input
Voltage
PCB
Mounting
Output
Current
Dash
ON/OFF Logic
RoHS compliance
5V to
13.8V
Throughhole
Positive
Logic
No suffix - RoHS compliant
1
with Pb solder exemption
G - RoHS compliant for all
six substances
POL
Converter
Horizontal
40A
______________________________________
1
The solder exemption refers to all the restricted materials except lead in solder. These materials are Cadmium (Cd), Hexavalent chromium
(Cr6+), Mercury (Hg), Polybrominated biphenyls (PBB), Polybrominated diphenylethers (PBDE), and Lead (Pb) used anywhere except in
solder.
Example: YH09T40-0G: YH09T40-0 POL converter with lead-free solder.
Model numbers highlighted in yellow or shaded are not recommended for new designs.
2.
Absolute Maximum Ratings
Stresses in excess of the absolute maximum ratings may cause performance degradation, adversely affect longterm reliability, and cause permanent damage to the converter.
Parameter
Conditions/Description
Min
Max
Units
Input Voltage
Continuous
-0.3
15
VDC
Ambient Temperature Range
Operating
0
70
C
-55
125
C
120
C
Storage Temperature (Ts)
Case Temperature (Tc)
3.
Measured on MOSFET Q120
Environmental and Mechanical Specifications
Parameter
Conditions/Description
Weight
MTBF
Calculated Per Telcordia Technologies SR-332,
Method I Case 1
50% electrical stress, 40°C ambient
Lead Plating
YH09T40-0 and YH09T40-0G
ZD-02095 Rev. 1.1, 18-Jun-10
www.power-one.com
Min
Nom
Max
Units
16.4
grams
40.5
MHrs
100% Matte Tin
Page 2 of 13
YH09T40 40A DC-DC POL Converter
5V to 13.8V Input 0.6V to 3.63V Output
Data Sheet
4.
Electrical Specifications
Specifications apply at the input voltage from 5V to 13.8V, output load from 0 to 40A, output voltage from 0.6V to
3.63V, 470µF external output capacitor, and ambient temperature from 0°C to 70°C unless otherwise noted.
4.1
Input Specifications
Parameter
Conditions/Description
Min
Nom
Max
Units
Input voltage (VIN)
VOUT≤0.55*VIN
5
12
13.8
VDC
Input Voltage Ramping Up
4.25
4.5
4.75
VDC
Input Voltage Ramping Down
3.75
4.0
4.25
VDC
Undervoltage Lockout
Turn On Threshold
Undervoltage Lockout
Turn Off Threshold
Standby Input Current
VIN=12V, POL is disabled via ON/OFF
Maximum Input Current
VIN=6V, VOUT=3.3V
Input Reflected Ripple Current
Peak-to-Peak
BW=5MHz to 20MHz, LSOURCE=1µH,
See Figure 20 for setup
4.2
16
mADC
25
130
ADC
mA
Output Specifications
Parameter
Conditions/Description
Min
Output Voltage Range (VOUT)
Programmable with a resistor between
TRIM+ and TRIM- pins
Output Voltage Setpoint Accuracy,
VOUT≥1V
Output Voltage Setpoint Accuracy,
VOUT
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