Datasheet

ManualsBrandsMURATA POWER SOLUTIONS ManualsPSU ComponentsDC/DC converter (SMD) 3 A 9.9 W No. of outputs: 1 x

The OKL-T/3-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 0.48 x 0.48 x 0.244 inches max.

(12.2 x 12.2 x 6.2 mm max.).

The wide input range is 2.4 to 5.5 Volts DC.

The maximum output current is 3 Amps. Based

on ﬁ xed-frequency synchronous buck converter

switching topology, the high power conversion

efﬁ cient Point of Load (PoL) module features

programmable 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.

An optional sequence/tracking feature allows

power sequencing of PoL’s. These units are certi-

ﬁ ed to all standard UL/EN/IEC 60950-1 safety

certiﬁ cations (2nd Edition) and RoHS-6 hazardous

substance compliance.

PRODUCT OVERVIEW

Connection Diagram

Figure 1. OKL-T/3-W5

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

See speciﬁ cations.

External

Power

Source

On/Off

Control

Common

Sequence/Tracking

(OKL2 models)

Power Good out

Open = On

Closed = Off

+Vin +Vout

Trim

Sense

Controller

Reference and

Error Ampliﬁer

t4XJUDIJOH

t'JMUFST

t$VSSFOU4FOTF

(Positive

On/Off)

FEATURES

■ iLGA inspectable Land Grid Array

■ 2.4-5.5Vdc input voltage range

■ Programmable output voltage from 0.6-3.63Vdc

■ Drives 200 µF ceramic capacitive loads

■ High power conversion efﬁ ciency at 95.3%

■ Outstanding thermal derating performance

■ Over temperature and over current protection

■ On/Off control

■ Certiﬁ ed to UL/EN/IEC 60950-1 safety, 2nd Edition

■ RoHS-6 hazardous substance compliance

■ Sequence/Tracking operation (optional)

Typical unit

OKL-T/3-W5 Series

Programmable Output 3-Amp iLGA SMT PoLs

MDC_OKL-T/3-W5 Series.C02 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
OKL-T/3-W5 Series www.murata-ps.com Programmable Output 3-Amp iLGA SMT PoLs Typical unit FEATURES PRODUCT OVERVIEW ■ iLGA inspectable Land Grid Array ■ 2.4-5.5Vdc input voltage range ■ Programmable output voltage from 0.6-3.63Vdc ■ Drives 200 μF ceramic capacitive loads ■ High power conversion efﬁciency at 95.
PAGE 2
OKL-T/3-W5 Series Programmable Output 3-Amp iLGA SMT PoLs Model Number Input Typ. Efﬁciency Vout Iout (Amps, Power R/N (mV p-p) Regulation (max.) Vin nom. Range Iin, no load Iin, full load (Volts) ➀ max.) (Watts) Max. ➃ (Volts) (Volts) (mA) ➃ (Amps) ➁ Min. Line Load On/Off Logic Output Sequence/ Tracking PERFORMANCE SPECIFICATIONS SUMMARY AND ORDERING GUIDE Package - Pinout P83 Case C83 inches (mm) OKL-T/3-W5P-C 0.6-3.63 3 9.9 25 ±0.25% ±0.25% 5 2.4-5.5 25 2.08 93.3% 95.3% Pos. no 0.
PAGE 3
OKL-T/3-W5 Series Programmable Output 3-Amp iLGA SMT PoLs Performance and Functional Speciﬁcations (Vin on or On/Off to Vout regulated) Switching Frequency See Note 1 Input Input Voltage Range Isolation Start-Up Voltage Undervoltage Shutdown (see Note 15) Overvoltage Shutdown Reﬂected (Back) Ripple Current (Note 2) Internal Input Filter Type Recommended External Fuse Reverse Polarity Protection See Ordering Guide and Note 7. Not isolated 2.05 V 1.92 V None TBD mA pk-pk Capacitive TBD None.
PAGE 4
OKL-T/3-W5 Series Programmable Output 3-Amp iLGA SMT PoLs Speciﬁcation Notes, Cont.: (7) Please observe the voltage input and output speciﬁcations in the Voltage Range Graph on page 17. (8) Output noise may be further reduced by adding an external ﬁlter. At zero output current, the output may contain low frequency components which exceed the ripple speciﬁcation. The output may be operated indeﬁnitely with no load.
PAGE 5
OKL-T/3-W5 Series Programmable Output 3-Amp iLGA SMT PoLs PERFORMANCE DATA AND OSCILLOGRAMS Efﬁciency vs. Line Voltage and Load Current @ +25˚C. (Vout = 3.3V) Maximum Current Temperature Derating at Sea Level (Vin=5V, Vout=3.3V) 100 3.25 3 0.33 m/s (65 LFM) 2.75 Output Current (Amps) Efﬁciency (%) 95 VIN = 4V VIN = 5V VIN = 5.5V 90 2.5 2.25 2 1.75 1.5 1.25 85 0.5 1.0 1.5 2.0 2.5 3.
PAGE 6
OKL-T/3-W5 Series Programmable Output 3-Amp iLGA SMT PoLs PERFORMANCE DATA AND OSCILLOGRAMS Efﬁciency vs. Line Voltage and Load Current @ +25˚C. (Vout = 2.5V) Maximum Current Temperature Derating at Sea Level (Vin=5V, Vout=2.5V) 100 3.25 3 0.33 m/s (65 LFM) 2.75 Output Current (Amps) Efﬁciency (%) 95 VIN = 3V VIN = 5V 90 VIN = 5.5V 2.5 2.25 2 1.75 1.5 1.25 85 0.5 1.0 1.5 2.0 Load Curre nt (Amps) 2.5 3.
PAGE 7
OKL-T/3-W5 Series Programmable Output 3-Amp iLGA SMT PoLs PERFORMANCE DATA AND OSCILLOGRAMS Efﬁciency vs. Line Voltage and Load Current @ +25˚C. (Vout = 1.8V) Maximum Current Temperature Derating at Sea Level (Vin=5V, Vout=1.8V) 100 3.25 3 0.33 m/s (65 LFM) 2.75 90 Output Current (Amps) Efﬁciency (%) 95 VIN = 2.4V VIN = 5V VIN = 5.5V 2.5 2.25 2 1.75 85 1.5 1.25 80 0.5 1.0 1.5 2.0 Load Curre nt (Amps) 2.5 3.
PAGE 8
OKL-T/3-W5 Series Programmable Output 3-Amp iLGA SMT PoLs PERFORMANCE DATA AND OSCILLOGRAMS Efﬁciency vs. Line Voltage and Load Current @ +25˚C. (Vout = 1.5V) Maximum Current Temperature Derating at Sea Level (Vin=5V, Vout=1.5V) 100 3.25 3 0.33 m/s (65 LFM) 2.75 Output Current (Amps) Efﬁciency (%) 95 90 VIN = 2.4V VIN = 5V VIN = 5.5V 85 2.5 2.25 2 1.75 1.5 1.25 80 0.5 1.0 1.5 2.0 Load Curre nt (Amps) 2.5 3.
PAGE 9
OKL-T/3-W5 Series Programmable Output 3-Amp iLGA SMT PoLs PERFORMANCE DATA AND OSCILLOGRAMS Efﬁciency vs. Line Voltage and Load Current @ +25˚C. (Vout = 1.2V) Maximum Current Temperature Derating at Sea Level (Vin=5V, Vout=1.2V) 100 3.25 3 0.33 m/s (65 LFM) 2.75 Output Current (Amps) Efﬁciency (%) 95 90 VIN = 2.4V VIN = 5V 85 VIN = 5.5V 2.5 2.25 2 1.75 1.5 1.25 80 0.5 1.0 1.5 2.0 Load Curre nt (Amps) 2.5 3.
PAGE 10
OKL-T/3-W5 Series Programmable Output 3-Amp iLGA SMT PoLs PERFORMANCE DATA AND OSCILLOGRAMS Efﬁciency vs. Line Voltage and Load Current @ +25˚C. (Vout = 1.0V) Maximum Current Temperature Derating at Sea Level (Vin=5V, Vout=1.0V) 100 3.25 3 0.33 m/s (65 LFM) 2.75 Output Current (Amps) Efﬁciency (%) 95 90 85 VIN = 2.4V VIN = 5V VIN = 5.5V 80 2.5 2.25 2 1.75 1.5 1.25 75 0.5 1.0 1.5 2.0 Load C urre nt (Amps) 2.5 3.
PAGE 11
OKL-T/3-W5 Series Programmable Output 3-Amp iLGA SMT PoLs MECHANICAL SPECIFICATIONS Top View INPUT/OUTPUT CONNECTIONS 0.043 (1.09) NOM. PCB THK 0.48 (12.19) Pin 1 2 3 4 5 6 7 8 9 10 11 12 Bottom View 0.48 (12.19) Side View NOTE: In case of solder-wicking, this terminal is connected to Vout. Function On/Off Control* VIN Ground VOUT Sense Trim Ground NC Sequence/Tracking** NC NC NC *The Remote On/Off can be provided with either positive (P sufﬁx) or negative (N sufﬁx) logic. **OKL2 models only 0.
PAGE 12
OKL-T/3-W5 Series Programmable Output 3-Amp iLGA SMT PoLs TAPE AND REEL INFORMATION (MSL RATING 2) Tape Detail 7.40±0.1 A’ B-B’ SECTION 12.60±0.1 L00103 B A YMDX Rev. L00103 YMDX Rev. L00103 YMDX Rev. Vacuum Pickup Point in Center 0.40±0.05 (7.0º) 4.00±0.1 24.00+0.3 -0.1 16.00±0.1 B’ 11.50±0.1 ø1.50+0.1 -0 1.75±0.1 Round Sprocket Holes 2.00±0.1 Pulling direction 12.60±0.1 (7.0º) Notes 1) The radius (R) is 0.3mm max. 2) Cumulative tolerance of 10 pitches of the sprocket hole is ±0.
PAGE 13
OKL-T/3-W5 Series Programmable Output 3-Amp iLGA SMT PoLs 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/oC. or better. Mount the resistor close to the converter with very short leads or use a surface mount trim resistor.
PAGE 14
OKL-T/3-W5 Series Programmable Output 3-Amp iLGA SMT PoLs TO OSCILLOSCOPE CURRENT PROBE +VIN VIN + – + – +VOUT LBUS CBUS CIN C1 -VIN CIN = 2 x 100μF, ESR < 700mΩ @ 100kHz CBUS = 1000μF, ESR < 100mΩ @ 100kHz LBUS = 1μH Figure 4. Measuring Input Ripple Current C2 SCOPE RLOAD -VOUT C1 = 1μF C2 = 10μF LOAD 2-3 INCHES (51-76mm) FROM MODULE Figure 5.
PAGE 15
OKL-T/3-W5 Series Programmable Output 3-Amp iLGA SMT PoLs 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
OKL-T/3-W5 Series Programmable Output 3-Amp iLGA SMT PoLs Voltage Range Graph Please observe the limits below for voltage input and output ranges. These limits apply at all output currents. 6 Input Voltage (V) 5 Soldering Guidelines Murata Power Solutions recommends the speciﬁcations below when installing these converters. These speciﬁcations vary depending on the solder type. Exceeding these speciﬁcations may cause damage to the product.
PAGE 17
OKL-T/3-W5 Series Programmable Output 3-Amp iLGA SMT PoLs 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.