A factory customer in France purchased a batch of power management chips from us, including linear regulators and switching regulators.
Part Number：LM1117DTX-5.0/NOPB
Category ：Integrated Circuit Power Management (PMIC) Voltage Regulators - Linear
Description ：IC REG LINEAR 5V 800MA TO252-3
AProtection Features：Over Current, Over Temperaturepplications：
• AC drive power stage modules
• Merchant network and server PSU
• Industrial AC/DC
• Ultrasound scanners
• Servo drive control modules
The LM1117 is a low dropout voltage regulator with a dropout of 1.2 V at 800 mA of load current.
The LM1117 is available in an adjustable version, which can set the output voltage from 1.25 to 13.8V with only two external resistors. In addition, it is available in five fixed voltages, 1.8 V, 2.5 V, 3.3 V, and 5 V.
The LM1117 offers current limiting and thermal shutdown. Its circuit includes a Zener trimmed bandgap reference to assure output voltage accuracy to within ±1%.
A minimum of 10-µF tantalum capacitor is required at the output to improve the transient response and stability.
Part Number：LP2985AIM5-5.0/NOPB
Category ：Integrated Circuit Power Management (PMIC) Voltage Regulators - Linear
Description ：Linear Voltage Regulator IC Positive Fixed 1 Output 150mA SOT-23-5
Protection Features：Over Current, Over Temperature, Short Circuit
The LP2985-N is a linear voltage regulator operating from 2.5 V to 16 V on the input and regulates voltages between 2.5 V to 6.1 V with 1% accuracy and 150-mA maximum output current. Efficiency is defined by the ratio of output voltage to input voltage because the LP2985-N is a linear voltage regulator. To achieve high efficiency, the dropout voltage (VIN – VOUT) must be as small as possible, thus requiring a very-low-dropout LDO.
Successfully implementing an LDO in an application depends on the application requirements. If the requirements are simply input voltage and output voltage, compliance specifications (such as internal power dissipation or stability) must be verified to ensure a solid design. If timing, start-up, noise, power supply rejection ratio (PSRR), or any other transient specification is required, then the design becomes more challenging.
Part Number：TPS61020DRCR
Category ：Integrated Circuit Power Management (PMIC) Voltage Regulators - DC DC Switching Regulators
Description ：Boost Switching Regulator IC Positive Adjustable 1.8V 1 Output 1.5A (Switch) 10-VFDFN Exposed Pad
Applications ：
• All One-Cell, Two-Cell, and Three-Cell Alkaline,NiCd or NiMH, or One-Cell Li-Ion or Li-Polymer Battery-Powered Products
• Portable Audio Players
• PDAs
• Cellular Phones
• Personal Medical Products
• Camera White LED Flash Lights
The TPS6102x family of devices provide a power supply solution for products powered by either a one-cell, two-cell, or three-cell alkaline, NiCd or NiMH, or one-cell Li-Ion or Li-polymer battery. Output currents can go as high as 200 mA while using a single-cell alkaline battery, and discharge it down to 0.9 V. The device can also be used for generating 5 V at 500 mA from a 3.3-V rail or a Li-Ion battery. The boost converter is based on a fixed-frequency, pulse width modulation (PWM) controller using a synchronous rectifier to obtain maximum efficiency. At low load currents the converter enters the power save mode to maintain a high efficiency over a wide-load current range. The Power Save mode can be disabled,forcing the converter to operate at a fixed switching frequency. The maximum peak current in the boost switch is limited to a value of 800 mA, 1500 mA, or 1800 mA depending on the version of the device.
The TPS6102x devices keep the output voltage regulated even when the input voltage exceeds the nominal output voltage. The output voltage can be programmed by an external resistor divider, or is fixed internally on the chip. The converter can be disabled to minimize battery drain. During shutdown,the load is completely disconnected from the battery.
A low-EMI mode is implemented to reduce ringing and, in effect, lower radiated electromagnetic energy when the converter enters the discontinuous conduction mode. The device is packaged in a 10-pin VSON PowerPAD™ package measuring 3 mm x 3mm (DRC).
Part Number：TPS62163DSGR
Category ：Integrated Circuit Power Management (PMIC) Voltage Regulators - DC DC Switching Regulators
Description ：Buck Switching Regulator IC Positive Fixed 5V 1 Output 1A 8-WFDFN Exposed Pad
Applications
• Standard 12-V Rail Supplies
• POL Supply From Single or Multiple Li-Ion Battery
• LDO Replacement
• Embedded Systems
• Digital Still Camera, Video
• Mobile PCs, Tablet-PCs, Modems
The TPS6216x device family are easy to use synchronous step-down DC/DC converters optimized for applications with high power density. A high switching frequency of typically 2.25 MHz allows the use of small inductors and provides fast transient response as well as high output voltage accuracy by utilization of the DCS-Control™ topology.
With its wide operating input voltage range of 3 V to 17 V, the devices are ideally suited for systems powered from either a Li-Ion or other battery as well as from 12-V intermediate power rails. It supports up to 1-A continuous output current at output voltages between 0.9 V and 6 V (with 100% duty cycle mode).
Power sequencing is also possible by configuring the enable and open-drain power good pins.
In power save mode, the devices show quiescent current of about 17 μA from VIN. Power save mode, entered automatically and seamlessly if the load is small, maintains high efficiency over the entire load range. In shutdown mode, the device is turned off and shutdown current consumption is less than 2 μA.
The device, available in adjustable and fixed output voltage versions, is packaged in an 8-pin WSON package measuring 2.00 mm × 2.00 mm (DSG) or 8-pin VSSOP package measuring 3.00 mm x 3.00 mm (DGK).
There are various types of power management chips, and they are widely used in a wide range of industries. They have always been one of our best-selling products. If you also need to purchase chips, you can contact us directly. We will provide you with chips with high quality and competitive price.
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