PMIC - Voltage Regulators - DC DC Switching Regulators

Category Introduction

Products in the DC-DC switching regulator PMIC (Power Management Integrated Circuit) family are component-level devices used in applications requiring stabilization of a DC input voltage and/or transformation thereof to an output voltage of different magnitude. They are distinguished from similar products called "controller" PMICs by virtue of integrating the main switching element through which the power delivered by the device passes.

Product List

3106 Items

Mfr Part #	Quantity Available	UnitPrice	Series	Packaging	Product Status	Function	Output Configuration	Topology	Output Type	Number of Outputs	Voltage - Input (Min)	Voltage - Input (Max)	Voltage - Output (Min/Fixed)	Voltage - Output (Max)	Current - Output	Frequency - Switching	Synchronous Rectifier	Operating Temperature	Mounting Type	Package / Case	Supplier Device Package
RT8059GJ5 IC REG BUCK ADJ 1A TSOT23-5 Richtek USA Inc.	440	$0.45		Tape & Reel (TR)	Active	Step-Down	Positive	Buck	Adjustable	1	2.8V	5.5V	0.6V	5.5V	1A	1.5MHz	Yes	-40°C ~ 85°C (TA)	Surface Mount	SOT-23-5 Thin, TSOT-23-5	TSOT-23-5
MC34063ADR2G IC REG BUCK BST ADJ 1.5A 8SOIC onsemi	1,346	$0.65		Tape & Reel (TR)	Active	Step-Up, Step-Down	Positive or Negative	Buck, Boost	Adjustable	1	3V	40V	1.25V	40V (Switch)	1.5A (Switch)	100kHz	No	0°C ~ 70°C (TA)	Surface Mount	8-SOIC (0.154", 3.90mm Width)	8-SOIC
MC34063ABD-TR IC REG BUCK BST ADJ 1.5A 8SO STMicroelectronics	143	$0.91		Tape & Reel (TR)	Active	Step-Up, Step-Down	Positive or Negative	Buck, Boost	Adjustable	1	3V	40V	1.25V	38V	1.5A (Switch)	33kHz	No	-40°C ~ 85°C (TA)	Surface Mount	8-SOIC (0.154", 3.90mm Width)	8-SOIC
RT8289GSP IC REG BUCK ADJUSTABLE 5A 8SOP Richtek USA Inc.	663	$1.11		Tape & Reel (TR)	Active	Step-Down	Positive	Buck	Adjustable	1	5.5V	32V	1.222V	26V	5A	500kHz	No	-40°C ~ 85°C (TA)	Surface Mount	8-SOIC (0.154", 3.90mm Width) Exposed Pad	8-SOP-EP
LM2766M6X/NOPB IC REG CHARGE PUMP 2VIN SOT23 Texas Instruments	793	$1.12		Tape & Reel (TR)	Active	Ratiometric	Positive	Charge Pump	Fixed	1	1.8V	5.5V	2Vin	-	20mA	200kHz	No	-40°C ~ 85°C (TA)	Surface Mount	SOT-23-6	SOT-23-6
LMR62014XMF/NOPB IC REG BOOST ADJ 2A SOT23-5 Texas Instruments	110	$1.14	SIMPLE SWITCHER®	Tape & Reel (TR)	Active	Step-Up	Positive	Boost	Adjustable	1	2.7V	14V	3V	20V	2A (Switch)	1.6MHz	No	-40°C ~ 125°C (TJ)	Surface Mount	SC-74A, SOT-753	SOT-23-5
NCP1421DMR2G IC REG BOOST ADJ 1.5A MICRO8 onsemi	126	$1.40		Tape & Reel (TR)	Active	Step-Up	Positive	Boost	Adjustable	1	1V	5V	1.5V	5V	1.5A (Switch)	1.2MHz	Yes	-40°C ~ 85°C (TA)	Surface Mount	8-TSSOP, 8-MSOP (0.118", 3.00mm Width)	8-MSOP
LM2767M5/NOPB IC REG CHRG PUMP 2VIN 15MA SOT23 Texas Instruments	150	$1.18		Tape & Reel (TR)	Active	Ratiometric	Positive	Charge Pump	Adjustable	1	1.8V	5.5V	3.6V	11V	15mA	11kHz	No	-40°C ~ 85°C (TA)	Surface Mount	SC-74A, SOT-753	SOT-23-5
MP2456GJ-Z IC REG BUCK ADJ 500MA TSOT23-6 Monolithic Power Systems Inc.	32	$1.42		Tape & Reel (TR)	Active	Step-Down	Positive	Buck	Adjustable	1	4.5V	50V	0.81V	45V	500mA	1.2MHz	No	-40°C ~ 125°C (TJ)	Surface Mount	SOT-23-6 Thin, TSOT-23-6	TSOT-23-6
LM2664M6 IC REG CHARG PUMP INV 40MA SOT23 Texas Instruments	324	$1.24		Tape & Reel (TR)	Not For New Designs	Ratiometric	Positive or Negative	Charge Pump	Fixed	1	1.8V	5.5V	-Vin, 2Vin	-	40mA	80kHz	No	-40°C ~ 85°C (TJ)	Surface Mount	SOT-23-6	SOT-23-6
LM27761DSGR IC REG CHARGE PUMP ADJ 8WSON Texas Instruments	401	$1.63		Tape & Reel (TR)	Active	Step-Up/Step-Down	Negative	Charge Pump	Adjustable	1	2.7V	5.5V	-1.5V	-5V	250mA	2MHz	No	-40°C ~ 85°C (TA)	Surface Mount	8-WFDFN Exposed Pad	8-WSON (2x2)
TL7660CDR IC REG CHARGE PUMP INV 8SOIC Texas Instruments	507	$1.66		Tape & Reel (TR)	Active	Ratiometric	Positive or Negative	Charge Pump	Fixed	1	1.5V	10V	-Vin, 2Vin	-	-	10kHz	No	-40°C ~ 85°C (TA)	Surface Mount	8-SOIC (0.154", 3.90mm Width)	8-SOIC
TPS61291DRVR IC REG BOOST PROG 700MA 6SON Texas Instruments	48	$1.68		Tape & Reel (TR)	Active	Step-Up	Positive	Boost	Programmable	1	0.9V	5V	2.5V, 3V, 3.3V	-	700mA (Switch)	-	Yes	-40°C ~ 85°C (TA)	Surface Mount	6-WDFN Exposed Pad	6-WSON (2x2)
ADP2108AUJZ-1.8-R7 IC REG BUCK 1.8V 600MA TSOT23-5 Analog Devices Inc.	208	$2.11		Tape & Reel (TR)	Active	Step-Down	Positive	Buck	Fixed	1	2.3V	5.5V	1.8V	-	600mA	3MHz	Yes	-40°C ~ 125°C (TA)	Surface Mount	SOT-23-5 Thin, TSOT-23-5	TSOT-23-5
LM2594DADJR2G IC REG MULTI CONFG ADJ 8SOIC onsemi	231	$2.31		Tape & Reel (TR)	Active	Step-Up, Step-Down, Step-Up/Step-Down	Positive or Negative	Buck, Boost, Buck-Boost	Adjustable	1	4.5V	40V	1.23V	37V	500mA	150kHz	No	-40°C ~ 125°C (TJ)	Surface Mount	8-SOIC (0.154", 3.90mm Width)	8-SOIC
MP3422GG-Z IC REG BOOST ADJ 6.5A 14QFN Monolithic Power Systems Inc.	177	$2.30		Tape & Reel (TR)	Active	Step-Up	Positive	Boost	Adjustable	1	1.9V	5.5V	2.5V	5.5V	6.5A (Switch)	600kHz	Yes	-40°C ~ 125°C (TJ)	Surface Mount	14-PowerVFQFN	14-QFN (2x2)
LM2623AMM/NOPB IC REG BOOST ADJ 2.2A 8VSSOP Texas Instruments	431	$1.98		Tape & Reel (TR)	Active	Step-Up	Positive	Boost	Adjustable	1	0.8V	14V	1.24V	14V	2.2A (Switch)	300kHz ~ 2MHz	No	-40°C ~ 85°C (TA)	Surface Mount	8-TSSOP, 8-MSOP (0.118", 3.00mm Width)	8-VSSOP
LM27313XMF/NOPB IC REG BOOST ADJ 800MA SOT23-5 Texas Instruments	196	$2.15		Tape & Reel (TR)	Active	Step-Up	Positive	Boost	Adjustable	1	2.7V	14V	5V	28V	800mA (Switch)	1.6MHz	No	-40°C ~ 125°C (TJ)	Surface Mount	SC-74A, SOT-753	SOT-23-5
ST1PS01EJR IC REG BUCK 8FLIPCHIP STMicroelectronics	300	$2.27		Tape & Reel (TR)	Active	Step-Down	Positive	Buck	Fixed	1	1.8V	5.5V	1.8V, 2.7V, 3V, 3.3V	-	400mA	2MHz	Yes	-40°C ~ 85°C (TA)	Surface Mount	8-UFBGA, FCBGA	8-FlipChip (1.11x1.41)
ST1S40IDR IC REG BUCK ADJUSTABLE 3A 8SO STMicroelectronics	288	$2.25		Tape & Reel (TR)	Active	Step-Down	Positive	Buck	Adjustable	1	4V	18V	0.8V	18V	3A	850kHz	Yes	-40°C ~ 150°C (TJ)	Surface Mount	8-SOIC (0.154", 3.90mm Width)	8-SOIC

About DC DC Switching Regulators in Voltage Regulators

What are DC DC Switching Regulators in Voltage Regulators?

DC DC Switching Regulators in Voltage Regulators

DC DC Switching Regulators are a type of voltage regulator used in power management integrated circuits (PMICs) to efficiently convert one DC voltage level to another. They operate by rapidly switching an inductor or transformer on and off, storing energy in the magnetic field, and then releasing it to the output at the desired voltage level. This switching action allows them to achieve high efficiency, often exceeding 90%, making them ideal for applications where power conservation is crucial. The basic operating principle involves pulse-width modulation (PWM) or pulse-frequency modulation (PFM) to control the output voltage, ensuring a stable supply despite variations in input voltage or load conditions.

Types of DC DC Switching Regulators in Voltage Regulators

1. Buck Converters

Buck converters, also known as step-down converters, reduce the input voltage to a lower output voltage. They are widely used in applications where the supply voltage is higher than the required load voltage, such as in battery-powered devices. Their efficiency and simplicity make them a popular choice for portable electronics.

2. Boost Converters

Boost converters, or step-up converters, increase the input voltage to a higher output voltage. They are essential in applications where the input voltage is lower than the desired output, such as in solar power systems or LED drivers. Their ability to provide a higher voltage output from a lower voltage source makes them invaluable in energy harvesting applications.

3. Buck-Boost Converters

Buck-boost converters can either step up or step down the input voltage, providing flexibility in applications where the input voltage can vary above or below the desired output voltage. They are particularly useful in battery-operated devices where the battery voltage decreases over time.

4. Inverting Converters

Inverting converters change the polarity of the input voltage, providing a negative output voltage. These are used in applications requiring dual power supply rails, such as operational amplifiers or analog circuits.

How to choose DC DC Switching Regulators in Voltage Regulators?

When selecting a DC DC Switching Regulator, several key parameters should be considered:

Output Voltage and Current: Ensure the regulator can provide the required voltage and current for your application.
Efficiency: Higher efficiency reduces heat generation and improves battery life in portable devices.
Switching Frequency: A higher frequency can reduce the size of external components but may increase electromagnetic interference (EMI).
Load Regulation: The ability to maintain a constant output voltage despite changes in load current.
Thermal Performance: Consider the thermal management requirements, especially in high-power applications.

Evaluating product quality and reliability involves reviewing supplier datasheets, customer reviews, and industry certifications. Environmental factors such as temperature range, humidity, and potential exposure to harsh conditions should also be considered. Installation requirements, including PCB layout and component placement, can impact performance and should be carefully planned.

Applications of DC DC Switching Regulators in Voltage Regulators

1. Consumer Electronics

In consumer electronics, DC DC Switching Regulators are used to manage power in smartphones, tablets, and laptops. They ensure efficient power conversion, extending battery life and reducing heat generation, which is crucial for compact devices.

2. Automotive Industry

In the automotive sector, these regulators are used in electric vehicles (EVs) and hybrid vehicles to manage power distribution from the battery to various electronic systems. They help in maintaining stable voltage levels for infotainment systems, lighting, and engine control units.

3. Telecommunications

Telecommunications equipment, such as base stations and networking devices, rely on DC DC Switching Regulators to provide stable power supply, ensuring reliable communication and data transmission even under varying load conditions.

4. Industrial Automation

In industrial automation, these regulators are used in control systems and robotics to provide precise voltage levels, ensuring accurate operation of sensors, actuators, and control units.

5. Renewable Energy Systems

DC DC Switching Regulators are integral to renewable energy systems, such as solar panels and wind turbines, where they convert and stabilize the variable output from these sources to a usable voltage level for storage or grid integration.