Datasheet

ManualsBrandsMURATA POWER SOLUTIONS ManualsPSU ComponentsDC/DC converter (print) 1.5 A 7.5 W No. of outputs: 1 x

FEATURES



600 KHz operation

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4.5-14 Vdc input voltage range



Programmable output voltage from 0.591-6.0 VDC

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High power conversion efﬁ ciency at 93%



Outstanding thermal derating performance

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Over temperature and over current protection

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On/Off control

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SIP, 0.41 x 0.40 x 0.24 inches (10.4 x 10.16 x 6.1 mm)

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Certiﬁ ed to UL/EN/IEC 60950-1 safety standards,

2nd edition



RoHS-6 hazardous substance compliance

The OKR-T/1.5-W12-C is a miniature SIP non-isolated Point-of-Load (PoL) DC/DC power converter

measuring only 0.41 x 0.40 x 0.24 inches (10.4 x 10.16 x 6.1 mm). The wide input range is 4.5 to 14 Volts

DC. Based on 600 KHz synchronous buck topology, the high power conversion efﬁ cient Point of Load (PoL)

module features programmable output voltage and On/Off control, under voltage lock out (UVLO), overcur-

rent and over temperature protections. These units are certiﬁ ed to UL/EN/ IEC 60950-1 safety standards

(2nd edition) and RoHS-6 hazardous substance compliance.

PRODUCT OVERVIEW

Figure 1. Connection Diagram

Typical unit

External

Power

Source

On/Off

Control

Common

+Vin +Vout

Trim

Controller

Reference and

Error Ampliﬁer

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OKR-T/1.5-W12-C

Adjustable Output 1.5-Amp SIP-mount DC/DC Converters

MDC_OKR-T/1.5-W12-C.A03 Page 1 of 16

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For full details go to

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Summary of content (16 pages)

PAGE 1
OKR-T/1.5-W12-C www.murata-ps.com Adjustable Output 1.5-Amp SIP-mount DC/DC Converters Typical unit FEATURES PRODUCT OVERVIEW  600 KHz operation The OKR-T/1.5-W12-C is a miniature SIP non-isolated Point-of-Load (PoL) DC/DC power converter measuring only 0.41 x 0.40 x 0.24 inches (10.4 x 10.16 x 6.1 mm). The wide input range is 4.5 to 14 Volts DC.
PAGE 2
OKR-T/1.5-W12-C Adjustable Output 1.5-Amp SIP-mount DC/DC Converters PERFORMANCE SPECIFICATIONS SUMMARY AND ORDERING GUIDE Output Root Model OKR-T/1.5-W12-C Input R/N (mVp-p) Regulation (Max.) IOUT VOUT (Amps Power VIN Nom. Range (Volts) max) (Watts) (Volts) (Volts) Max. Line Load 0.591-6 1.5 7.5 25 ±0.3% ±0.5% ➀ For Vout ≥ 3.3V, Vin should be ≥ (Vout ÷ 0.85) + 0.5V. 12 4.5-14 IIN, IIN, no load full load (mA) (Amps) 80 0.672 Efﬁciency Min. Typ. Dimensions (Inches) 91% 93% 0.41x0.40x0.
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OKR-T/1.5-W12-C Adjustable Output 1.5-Amp SIP-mount DC/DC Converters FUNCTIONAL SPECIFICATIONS ABSOLUTE MAXIMUM RATINGS Minimum Typical/Nominal Maximum Units Conditions ➀ Input Voltage, Continuous Full power operation 0 15 Vdc Input Reverse Polarity None, install external fuse None Vdc On/Off Remote Control Power on or off, referred to -Vin 0 14 Vdc Output Power 0 7.5 7.65 W Output Current Current-limited, no damage, short-circuit protected 0 1.
PAGE 4
OKR-T/1.5-W12-C Adjustable Output 1.5-Amp SIP-mount DC/DC Converters FUNCTIONAL SPECIFICATIONS (CONT.
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OKR-T/1.5-W12-C Adjustable Output 1.5-Amp SIP-mount DC/DC Converters OKR-T/1.5-W12-C PERFORMANCE DATA Efﬁciency vs. Line Voltage and Load Current @ 25°C (Vin = 1V) Efﬁciency vs. Line Voltage and Load Current @ 25°C (Vin = 2.5V) 90 100 80 90 80 70 50 Efﬁciency (%) Efﬁciency (%) 70 VIN = 14V VIN = 12V VIN = 4.5V 60 40 30 VIN = 14V VIN = 12V VIN = 4.5V 60 50 40 30 20 20 10 10 0 0 0 0.2 0.4 0.6 0.8 1 1.2 1.4 0 1.6 0.2 0.4 Load Current (Amps) Efﬁciency vs.
PAGE 6
OKR-T/1.5-W12-C Adjustable Output 1.5-Amp SIP-mount DC/DC Converters OKR-T/1.5-W12-C OSCILLOGRAMS – Vout = 1.8V Step Load Transient Response (Vin=12V, Vout=1.8V, Cload=5x10μF X5R 0805 ceramic, total 50μF, Iout=0A to 1.5A) Top trace=Vout, Bottom trace=Iout Step Load Transient Response (Vin=12V, Vout=1.8V, Cload=5x10μF X5R 0805 ceramic, total 50μF, Iout=1.5A to 0A) Top trace=Vout, Bottom trace=Iout Step Load Transient Response (Vin=4.5V, Vout=1.8V, Cload=5x10μF X5R 0805 ceramic, total 50μF, Iout=0A to 1.
PAGE 7
OKR-T/1.5-W12-C Adjustable Output 1.5-Amp SIP-mount DC/DC Converters OKR-T/1.5-W12-C OSCILLOGRAMS – Vout = 1.8V Step Load Transient Response (Vin=4.5V, Vout=1.8V, Cload=12x10μF X5R 0805 ceramic, total 120μF, Iout=0A to 1.5A) Top trace=Vout, Bottom trace=Iout Step Load Transient Response (Vin=4.5V, Vout=1.8V, Cload=12x10μF X5R 0805 ceramic, total 120μF, Iout=1.5A to 0A) Top trace=Vout, Bottom trace=Iout Step Load Transient Response (Vin=4.5V, Vout=1.
PAGE 8
OKR-T/1.5-W12-C Adjustable Output 1.5-Amp SIP-mount DC/DC Converters OKR-T/1.5-W12-C OSCILLOGRAMS – Vout = 3.3V Step Load Transient Response (Vin=12V, Vout=3.3V, Cload=5x10μF X5R 0805 ceramic, total 50μF, Iout=0A to 1.5A) Top trace=Vout, Bottom trace=Iout Step Load Transient Response (Vin=12V, Vout=3.3V, Cload=5x10μF X5R 0805 ceramic, total 50μF, Iout=1.5A to 0A) Top trace=Vout, Bottom trace=Iout Step Load Transient Response (Vin=5.5V, Vout=3.3V, Cload=5x10μF X5R 0805 ceramic, total 50μF, Iout=0A to 1.
PAGE 9
OKR-T/1.5-W12-C Adjustable Output 1.5-Amp SIP-mount DC/DC Converters OKR-T/1.5-W12-C OSCILLOGRAMS – Vout = 3.3V Step Load Transient Response (Vin=5.5V, Vout=3.3V, Cload=12x10μF X5R 0805 ceramic, total 120μF, Iout=0A to 1.5A) Top trace=Vout, Bottom trace=Iout Step Load Transient Response (Vin=5.5V, Vout=3.3V, Cload=12x10μF X5R 0805 ceramic, total 120μF, Iout=1.5A to 0A) Top trace=Vout, Bottom trace=Iout Step Load Transient Response (Vin=5.5V, Vout=3.
PAGE 10
OKR-T/1.5-W12-C Adjustable Output 1.5-Amp SIP-mount DC/DC Converters OKR-T/1.5-W12-C OSCILLOGRAMS – Vout = 5V Step Load Transient Response (Vin=12V, Vout=5V, Cload=5x10μF X5R 0805 ceramic, total 50μF, Iout=0A to 1.5A) Top trace=Vout, Bottom trace=Iout Step Load Transient Response (Vin=12V, Vout=5V, Cload=5x10μF X5R 0805 ceramic, total 50μF, Iout=1.5A to 0A) Top trace=Vout, Bottom trace=Iout Step Load Transient Response (Vin=7.5V, Vout=5V, Cload=5x10μF X5R 0805 ceramic, total 50μF, Iout=0A to 1.
PAGE 11
OKR-T/1.5-W12-C Adjustable Output 1.5-Amp SIP-mount DC/DC Converters OKR-T/1.5-W12-C OSCILLOGRAMS – Vout = 5V Step Load Transient Response (Vin=7.5V, Vout=5V, Cload=12x10μF X5R 0805 ceramic, total 120μF, Iout=0A to 1.5A) Top trace=Vout, Bottom trace=Iout Step Load Transient Response (Vin=7.5V, Vout=5V, Cload=12x10μF X5R 0805 ceramic, total 120μF, Iout=1.5A to 0A) Top trace=Vout, Bottom trace=Iout Step Load Transient Response (Vin=7.
PAGE 12
OKR-T/1.5-W12-C Adjustable Output 1.5-Amp SIP-mount DC/DC Converters MECHANICAL SPECIFICATIONS 0.24 (6.1) REF 0.41 (10.4) 0.205 (5.2) REF 0.11 (2.79) CL 0.05 (1.3) REF THK 0.40 (10.16) Pin #1 0.15 (3.8) Pin #5 0.067 (1.7) 0.14 (3.56) 0.134 (3.4) 0.067 (1.7) 0.032 ±.002 TYP (0.813) 0.134 (3.4) Pin #1 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.
PAGE 13
OKR-T/1.5-W12-C Adjustable Output 1.5-Amp SIP-mount DC/DC Converters STANDARD PACKAGING Each static dissipative polyethylene foam tray accommodates 120 converters 2.5±.25 (63.5) Closed height 10.00 ±.25 (254.0) 10.00±.25 (254.0) Carton accommodates four (3) trays of 120 yielding 360 converters per carton. 0.49 (12.5) 9.92 (252.0) 6.5 X 45° x4 0.63 (16.0) 0.39 (10.0) 0.94 (24.0) 9.92 (252.0) 0.2 (5.0) 0.33 (8.5) 0.43 (11.0) 0.2 (5.0) Dimensions are in inches (mm shown for ref. only).
PAGE 14
OKR-T/1.5-W12-C Adjustable Output 1.5-Amp SIP-mount DC/DC Converters TECHNICAL NOTES Input Fusing Certain applications and/or safety agencies may require fuses at the inputs of power conversion components. Fuses should also be used when there is the possibility of sustained input voltage reversal which is not current-limited. For greatest safely, we recommend a fast blow fuse installed in the ungrounded input supply line. The installer must observe all relevant safety standards and regulations.
PAGE 15
OKR-T/1.5-W12-C Adjustable Output 1.5-Amp SIP-mount DC/DC Converters Minimum Output Loading Requirements All models regulate within speciﬁcation and are stable under no load to full load conditions. Operation under no load might however slightly increase output ripple and noise. CAUTION: If you routinely or accidentally exceed these Derating guidelines, the converter may have an unplanned Over Temperature shut down. Also, these graphs are all collected at slightly above Sea Level altitude.
PAGE 16
OKR-T/1.5-W12-C Adjustable Output 1.5-Amp SIP-mount DC/DC Converters Trim Connections 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.