Datasheet

ManualsBrandsMURATA POWER SOLUTIONS ManualsPSU ComponentsDC/DC converter (SMD) 12 A 39.6 W No. of outputs: 1 x

Figure 1. OKL2-T/12-W5

Note: Murata Power Solutions strongly recommends an external input fuse, F1.

See speciﬁ cations.

The OKL2-T/12-W5 series are miniature non-

isolated point-of-Load(PoL) DC-DC power Convert-

ers for embedded applications. The tiny form factor

is conﬁ gured on a Land Grid Array (LGA) assembly

measuring only 0.8 x 0.45 x0.34 inches (20.32 x

11.43 x 8.55 mm). Applications include powering

CPU’s, datacom/telecom systems, distributed bus

architectures (DBA), programmable logic and mixed

voltage systems.

The wide input range is 2.4 to 5.5Volts DC.

The maximum output current is 12Amps. Based

on ﬁ xed-frequency synchronous buck converter

switching topology, the high power conversion

efﬁ cient Point of Load (PoL) module features pro-

grammable output voltage and On/Off control.

These converters also include under voltage lock

out (UVLO), output short circuit protection, over-

current and over temperature protections.

PRODUCT OVERVIEW

Connection Diagram

External

Power

Source

On/Off

Control

Common

Open = On

Closed = Off

+Vin +Vout

Trim

Controller

Reference and

Error Ampliﬁer

t4XJUDIJOH

t'JMUFST

t$VSSFOU4FOTF

(Positive

On/Off)

4FRVFODF5SBDLJOH Power Good

FEATURES



iLGA inspectable Land Grid Array



2.4-5.5Vdc input voltage range



Programmable output voltage from 0.6-3.63Vdc



Drives 1000µF ceramic capacitive loads



High power conversion efﬁ ciency at 94%



Outstanding thermal derating performance



Over temperature and over current protection



On/Off control



RoHS-6 hazardous substance compliance



Optional Sequence/Tracking operation

Typical unit

ypical unit

OKL2-T/12-W5 Series

Programmable Output 12-Amp iLGA SMT PoL

DC-DC Converter Series

MDC_OKL2-T/12-W5.B02 Page 1 of 17

www.murata-ps.com

www.murata-ps.com/support

For full details go to

www.murata-ps.com/rohs

Summary of content (17 pages)

PAGE 1
OKL2-T/12-W5 Series www.murata-ps.com Programmable Output 12-Amp iLGA SMT PoL DC-DC Converter Series Typical unit FEATURES PRODUCT OVERVIEW  iLGA inspectable Land Grid Array The OKL2-T/12-W5 series are miniature nonisolated point-of-Load(PoL) DC-DC power Converters for embedded applications. The tiny form factor is conﬁgured on a Land Grid Array (LGA) assembly measuring only 0.8 x 0.45 x0.34 inches (20.32 x 11.43 x 8.55 mm).
PAGE 2
OKL2-T/12-W5 Series Programmable Output 12-Amp iLGA SMT PoL DC-DC Converter Series OKL-T/12-W5P-C OKL-T/12-W5N-C OKL2-T/12-W5P-C OKL2-T/12-W5N-C ➀ ➁ Input R/N Regulation (max.) Vout Iout (Amps, Power Vin nom. (mV p-p) (Volts) ➀ max.) ➁ (Watts) (Volts) Load Max. ➃ Line 0.6-3.63 12 39.6 30 The output range is limited by Vin. See detailed specs. All speciﬁcations are at nominal line voltage, Vout=nominal (3.3V) and full load, +25°C. unless otherwise noted. ±0.6% ±0.
PAGE 3
OKL2-T/12-W5 Series Programmable Output 12-Amp iLGA SMT PoL DC-DC Converter Series FUNCTIONAL SPECIFICATIONS ABSOLUTE MAXIMUM RATINGS Input Voltage, Continuous Output Power Output Current Conditions (1) Full power operation Current-limited, no damage, short-circuit protected Minimum 0 0 0 Typical/Nominal Maximum 6 43.56 Units Vdc W 12 A On/Off Control 5.5 Vdc Storage Temperature Range Vin = Zero (no power) -55 125 ˚C Absolute maximums are stress ratings.
PAGE 4
OKL2-T/12-W5 Series Programmable Output 12-Amp iLGA SMT PoL DC-DC Converter Series FUNCTIONAL SPECIFICATIONS (CONT.
PAGE 5
OKL2-T/12-W5 Series Programmable Output 12-Amp iLGA SMT PoL DC-DC Converter Series OKL2-T/12-W5 PERFORMANCE DATA AND OSCILLOGRAMS Efﬁciency vs. Line Voltage and Load Current @Ta = +25 °C (Vout = 3.3V) 100 Maximum Current Temperature Derating at Sea Level (Vin=5V, Vout=3.3V) 14 12 VIN = 4.5V VIN = 5V VIN = 5.5V 90 Output Current (Amps) Efﬁciency (%) 95 85 80 Natural Convection 0.5 m/s (100 LFM) 1.
PAGE 6
OKL2-T/12-W5 Series Programmable Output 12-Amp iLGA SMT PoL DC-DC Converter Series OKL2-T/12-W5 PERFORMANCE DATA AND OSCILLOGRAMS Efﬁciency vs. Line Voltage and Load Current @Ta = +25 °C (Vout = 2.5V) 100 Maximum Current Temperature Derating at Sea Level (Vin=5V, Vout=2.5V) 14 12 VIN = 3V VIN = 5V VIN = 5.5V 90 Output Current (Amps) Efﬁciency (%) 95 85 80 Natural Convection 0.5 m/s (100 LFM) 1.
PAGE 7
OKL2-T/12-W5 Series Programmable Output 12-Amp iLGA SMT PoL DC-DC Converter Series OKL2-T/12-W5 PERFORMANCE DATA AND OSCILLOGRAMS Efﬁciency vs. Line Voltage and Load Current @Ta = +25 °C (Vout = 1.8V) 100 Maximum Current Temperature Derating at Sea Level (Vin=5V, Vout=1.8V) 14 12 90 Output Current (Amps) Efﬁciency (%) 95 VIN = 2.4V VIN = 3.3V VIN = 5.5V 85 80 Natural Convection 0.5 m/s (100 LFM) 1.
PAGE 8
OKL2-T/12-W5 Series Programmable Output 12-Amp iLGA SMT PoL DC-DC Converter Series OKL2-T/12-W5 PERFORMANCE DATA AND OSCILLOGRAMS Efﬁciency vs. Line Voltage and Load Current @Ta = +25 °C (Vout = 1.2V) 95 Maximum Current Temperature Derating at Sea Level (Vin=5V, Vout=1.2V) 14 12 Output Current (Amps) Efﬁciency (%) 90 VIN = 2.4V VIN = 3.3V VIN = 5.5V 85 80 75 Natural Convection 0.5 m/s (100 LFM) 1.
PAGE 9
OKL2-T/12-W5 Series Programmable Output 12-Amp iLGA SMT PoL DC-DC Converter Series OKL2-T/12-W5 PERFORMANCE DATA AND OSCILLOGRAMS Efﬁciency vs. Line Voltage and Load Current @Ta = +25 °C (Vout = 0.6V) 95 Maximum Current Temperature Derating at Sea Level (Vin=5V, Vout=0.6V) 14 12 Output Current (Amps) Efﬁciency (%) 90 85 VIN = 2.4V VIN = 3.3V VIN = 5.5V 80 75 Natural Convection 0.5 m/s (100 LFM) 1.
PAGE 10
OKL2-T/12-W5 Series Programmable Output 12-Amp iLGA SMT PoL DC-DC Converter Series MECHANICAL SPECIFICATIONS 4 11.43 5 18.80 2.44×1.73×10PLACES 6 10.16 3 7 10 8 2 1 5.72 1.27 Y 20.32 19.05 14.48 10.41 X 6.35 0 TOP VIEW 1.52 9 UNIT[mm] BOTTOM VIEW [ Tolerances ±0.25mm] Figure 3. OKL2-T/12-W5 Mechanical Outline 8.
PAGE 11
OKL2-T/12-W5 Series Programmable Output 12-Amp iLGA SMT PoL DC-DC Converter Series RECOMMENDED LAYOUT Dimensions are in inches (mm shown for ref. only). Third Angle Projection Tolerances (unless otherwise speciﬁed): .XX ± 0.02 (0.5) .XXX ± 0.010 (0.25) Angles ± 1˚ Components are shown for reference only. www.murata-ps.com/support MDC_OKL2-T/12-W5.
PAGE 12
OKL2-T/12-W5 Series Programmable Output 12-Amp iLGA SMT PoL DC-DC Converter Series TAPE AND REEL INFORMATION (MSL RATING 2) B -B ’ SE C T I O N Tape Detail Vacuum Pickup Point in Center A -A ’ SECTION Pulling direction Reel Detail Reel Information (250 units per reel) Key A B C Description Tape trailer (no modules) Pocket tape length before modules Cover tape length before pocket tape Length (mm) 240±40 180 min 240±40 www.murata-ps.com/support MDC_OKL2-T/12-W5.
PAGE 13
OKL2-T/12-W5 Series Programmable Output 12-Amp iLGA SMT PoL DC-DC Converter Series TECHNICAL NOTES Output Voltage Adustment The output voltage may be adjusted over a limited range by connecting an external trim resistor (Rtrim) between the Trim pin and Ground. The Rtrim resistor must be a 1/10 Watt precision metal ﬁlm type,±0.5% accuracy or better with low temperature coefﬁcient, ±100 ppm/degC. or better. Mount the resistor close to the converter with very short leads or use a surface mount trim resistor.
PAGE 14
OKL2-T/12-W5 Series Programmable Output 12-Amp iLGA SMT PoL DC-DC Converter Series Input Ripple Current and Output Noise All models in this converter series are tested and speciﬁed for input reﬂected ripple current and output noise using designated external input/ output components, circuits and layout as shown in the ﬁgures below. The Cbus and Lbus components simulate a typical DC voltage bus. Please note that the values of Cin, Lbus and Cbus will vary according to the speciﬁc converter model.
PAGE 15
OKL2-T/12-W5 Series Programmable Output 12-Amp iLGA SMT PoL DC-DC Converter Series Output Current Limiting Current limiting inception is deﬁned as the point at which full power falls below the rated tolerance. See the Performance/Functional Speciﬁcations. Note particularly that the output current may brieﬂy rise above its rated value in normal operation as long as the average output power is not exceeded. This enhances reliability and continued operation of your application.
PAGE 16
OKL2-T/12-W5 Series Programmable Output 12-Amp iLGA SMT PoL DC-DC Converter Series Input Voltage (V) Voltage Range Graph Please observe the limits below for voltage input and output ranges. These limits apply at all output currents (Ta = 25°C). 6 5.5 5 4.5 4 3.5 3 2.5 2 1.5 1 0.5 0 Vin=2.4V / Vout=1.8V 0 0.5 1 Upper Limit Lower Limit 1.5 2 2.5 Output Voltage (V) 3 3.5 4 Figure 8.
PAGE 17
OKL2-T/12-W5 Series Programmable Output 12-Amp iLGA SMT PoL DC-DC Converter Series Vertical Wind Tunnel IR Transparent optical window Unit under test (UUT) Variable speed fan Murata Power Solutions employs a computer controlled custom-designed closed loop vertical wind tunnel, infrared video camera system, and test instrumentation for accurate airﬂow and heat dissipation analysis of power products.