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DC-DC Converter, Non-Isolated, 7.5–50W

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DC-DC Converter, Non-isolated, 7.5–50W

03D-10A Series

DC to DC Power Conversion for Communication Equipment and Battery Systems

The 7.5–50W non-isolated POL DC-DC converter offers high efficiency in a compact 33.0 × 13.5 × 7.7 mm SMD package. It supports input voltages from 8.3 to 14VDC, delivers up to 10A output current, and provides adjustable output from 0.75V to 5VDC via external resistor. With an operating range of -40°C to +85°C, it is well-suited for communication equipment, battery management, and energy-related applications.

High-performance SMT non-isolated DC-DC converters featuring adjustable output and wide input ranges. Our cost-effective, custom non-isolated open frame design is the ideal power solution for industrial equipment, e-bikes, and precision electronic instruments.

All Yuan Dean DC-DC converters are RoHS-compliant, customizable, and backed by a 3-year warranty. OEM/ODM inquiries are welcome.

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Product Description1

Non-isolated 7.5 ~ 50W DC-DC Converters(03D-10A Series) | SMD non-isolated DC to DC converter | Adjustable non-isolated DC-DC

Features

SMD packages.
High efficiency 93% @ 3.3V full load.
Customized solutions available.
Operating temperature from -40°C to +85°C.
3 years warranty.
Input under-voltage lockout.
Input range from 8.3Vdc to 14.0Vdc.
Output current up to 10A.
Output voltage programmable from 0.75Vdc to 5.0Vdc via external resistor.

Applications

General Industrial.
Instruments.
Sensing Equipment.
E-Bike.
Customized.

Specifications typical at TA = 25°C, nominal input voltage and rated output current unless otherwise specified

Part Number	ON / OFF Logic	Input Range	Output Voltage	Output Current		Efficiency (%) 12Vin, 3.3Vdc @10A
Part Number	ON / OFF Logic	Input Range	Output Voltage	Min. Load	Max. Load	Efficiency (%) 12Vin, 3.3Vdc @10A
03D-12-10	Negative	Vo (set) ≦ 3.63V Vin = 8.3-14Vdc	0.75 ~ 5.0Vdc	0A	10A	93%

Input Specifications

Parameters	Conditions	Min	Typ	Max	Units
Voltage Tolerance	Vo (set) ≦ 3.63V	8.3	Vin (nom) = 12V	14	Vdc
Voltage Tolerance	Vo (set) > 3.63V	8.3	Vin (nom) = 12V	13.2	Vdc
Input Current	Vin = 8.3 to 14.0Vdc; Io (max.)			7	A
Input Filter (Note4)	C filter
No Load Current (Vin=12V, Io=0, Module enabled)	Vo (set) = 0.75Vdc		40		mA
No Load Current (Vin=12V, Io=0, Module enabled)	Vo (set) = 5.0Vdc		100		mA
Under Voltage Lockout	Start-up Voltage		7.9		V
Under Voltage Lockout	Shutdown Voltage		7.8		V

Input reflected ripple current 5 ~ 20MHz, 1uH source impedance: 20mAp-p

Output Specifications

Parameters	Conditions		Min	Typ	Max	Units
Output current					10	A
Voltage Tolerance	Full load and Vin (nom.)				± 2	%
Minimum load					0	A
Line Regulation	Vin = Vin (min) to Vin (max) at Full Load			± 0.3		%
Load Regulation	No Load to Full Load			± 0.4		%
Ripple & Noise (Note2)	20MHz bandwidth				75	mVp-p
Dynamic load response (Note 2)	ΔIo / Δt = 2.5A/uS, Vin (nom)	Peak deviation		200		mV
Dynamic load response (Note 2)	Load change step (25% to 100% or 100% to 25% of Io (max)	Setting time (Vo < 10% peak deviation)		25		uS
Dynamic load Response (Note 3)	ΔIo / Δt = 2.5A/uS, Vin (nom)	Peak deviation		100		mV
Dynamic load Response (Note 3)	Load change step (25% to 100% or 100% to 25% of Io (max))	Setting time (Vo < 10% peak deviation)		25		uS
Output current limit			200			%
Output short-circuit current	Hiccup, automatic recovery
External load capacitance	ESR ≧ 1mΩ				1000	uF
External load capacitance	ESR ≧ 10mΩ				5000	uF
Output voltage overshoot-startup	Vin = Vin (min) to Vin (max); F.L			1		%
Voltage adjustability (see fig.1)			0.7525		5.0	V

General Specifications

Parameters	Conditions	Min	Typ	Units
Switching Frequency			300	KHz
Isolation voltage	None
Efficiency	See table
Dimensions		33.0 x 13.5 x 7.7		mm
Weight			6.0	g
MTBF (Note 1)	MIL-HDBK-217F	1.048 x 10⁶		hrs

Environmental Specifications

Parameters	Conditions	Min	Typ	Max	Units
Operating temperature range	with derating	-40		+85	°C
Storage temperature range		-55		+125	°C
Thermal shock		MIL-STD-810F
Over temperature protection			+125		°C

Feature Specifications

Parameters	Conditions	Min	Typ	Max	Units
Remote ON/OFF
Negative logic (standard)	ON = 0V < Vr < 0.3V@I_IN			10	uA
Negative logic (standard)	OFF=2.5V < Vr < Vin (Max)@I_IN			1	mA
Input current of Remote control pin		0.01		1.0	mA
Remote off state input current Nominal Vin			2.0		mA
Remote sense range				0.5	V
Rise time (Time for Vo to rise from 10% to 90%of Vo(set))				6	ms
Turn-on delay time	Case 1 (Note 5)		3		ms
Turn-on delay time	Case 2 (Note 6)		3		ms