PMN8118UWP Ericsson Power Modules, PMN8118UWP Datasheet - Page 35

• Manufacturer Part Number: PMN8118UWP
• Description: DC/DC Converters & Regulators 0.7-3.6V 30A Non-Iso Input 5.5-14V 108W
• Manufacturer: Ericsson Power Modules
• Series: PMNr

Specifications of PMN8118UWP

• Output Power: 108 W
• Input Voltage Range: 5.5 V to 14 V
• Number Of Outputs: 1
• Output Voltage (channel 1): 0.7 V to 3.6 V
• Output Current (channel 1): 30 A
• Output Type: POLA Non-Isolated Regulator
• Product: Non-Isolated / POL
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

E
requirement. High quality, ultra-low ESR capacitors are
required to maximize Turbo Trans
Capacitors with a capacitance (µF)×ESR (mΩ) ≤ 10,000 mΩ ×
µF are required.
Required Capacitor with Turbo Trans. See the Turbo Trans
Application information for Capacitor Selection.
Capacitor Type Group by ESR (Equivalent Series Resistance)
Type A = (100<capacitance×ESR≤1,000)
Type B = (1,000<capacitance×ESR≤5,000)
Type C = (5,000<capacitance×ESR≤10,000)
Input And Output Impedance
The impedance of both the input source and the load will
interact with the impedance of the DC/DC regulator. It is
important that the input source has low characteristic
impedance. The regulators are designed for stable
operation without external capacitors connected to the
input or output. The performance in some applications can
be enhanced by addition of external capacitance as
described under External Decoupling Capacitors. If the input
voltage source contains significant inductance, the addition
of a 100 µF capacitor across the input of the regulator will
ensure stable operation. The capacitor is not required when
powering the DC/DC regulator from an input source with an
inductance below
10 µH.
External Decoupling Capacitors
When powering loads with significant dynamic current
requirements, the voltage regulation at the point of load
can be improved by addition of decoupling capacitors at
the load.
The most effective technique is to locate low ESR ceramic
and electrolytic capacitors as close to the load as possible,
using several parallel capacitors to lower the effective ESR.
Prepared (also subject responsible if other)
EYIPYAN
Approved
SEC/D (Julia You)
PMN 8000 series PoL Regulator
Input 5.5 - 14 V, Output up to 30 A / 108 W
TM
effectiveness.
Checked
EQUENXU
TM
Ericsson Internal
PRODUCT SPECIFICATION
No.
3/1301-BMR656 8118 Uen
Date
2007-7-9
The ceramic capacitors will handle high-frequency dynamic
load changes while the electrolytic capacitors are used to
handle low frequency dynamic load changes. Ceramic
capacitors will also reduce any high frequency noise at the
load.
It is equally important to use low resistance and low
inductance PCB layouts and cabling.
External decoupling capacitors will become part of the
control loop of the DC/DC regulator and may affect the
stability margins. As a “rule of thumb”, 100 µF/A of output
current can be added without any additional analysis. The
ESR of the capacitors is a very important parameter. Power
Modules guarantee stable operation with a verified ESR
value of >10 mΩ across the output connections.
For further information please contact your local Ericsson
Power Modules representative.
Output Voltage Adjust (V
The DC/DC regulators have an Output Voltage Adjust pin
(V
above or below Output voltage initial setting.
To increase or decrease the voltage, the resistor should be
connected between the V
value of the output voltage adjust function is according to
information given under the output section for the
respective product.
Parallel Operation
Two regulators may be paralleled for redundancy if the total
power is equal or less than P
adj
). This pin can be used to adjust the output voltage
Technical Specification
EN/LZT 146 387 R1B December 2009
© Ericsson AB
Rev
B
adj
adj
pin and GND pin. The resistor
)
O
Reference
max. It is not recommended
3 (12)
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