Regulator archives - Page 180 of 501

Part Number: LM5001-Q1

Function: 3.1-75V Wide Vin, 1A Current Mode Non-Synchronous Switch Mode Regulator

Package: SOIC 8 Pin Type

Pinouts:

LM5001-Q1 datasheet

Description

The LM5001-Q1 high-voltage switch-mode regulator features all of the functions necessary to implement efficient high-voltage Boost, Flyback, SEPIC and Forward converters, using few external components.

This easy-to-use regulator integrates a 75-V N Channel MOSFET with a 1-A peak current limit. Current mode control provides inherently simple loop compensation and line-voltage feed-forward for superior rejection of input transients. The switching frequency is set with a single resistor and is programmable up to 1.5 MHz. The oscillator can also be synchronized to an external clock. Additional protection features include: current limit, thermal shutdown, undervoltage lockout and remote shutdown capability.

High-Voltage VCC Regulator

The LM5001 VCC Low Drop Out (LDO) regulator allows the LM5001 to operate at the lowest possible input voltage. The VCC pin voltage is very nearly equal to the input voltage from 2.8 V up to approximately 6.9 V. As the input voltage continues to increase, the VCC pin voltage is regulated at the 6.9 V set-point. The total input operating range of the VCC LDO regulator is 3.1 V to 75 V.

The output of the VCC regulator is current limited to 20 mA. During power up, the VCC regulator supplies current into the required decoupling capacitor (0.47 µF or greater ceramic capacitor) at the VCC pin. When the voltage at the VCC pin exceeds the VCC UVLO threshold of 2.8 V and the EN pin is greater than 1.26 V the PWM controller is enabled and switching begins. The controller remains enabled until VCC falls below 2.7 V or the EN pin falls below 1.16 V.

Features

1. Integrated 75-V N-Channel MOSFET

2. Ultra-Wide Input Voltage Range from 3.1 V to 75 V

3. Integrated High Voltage Bias Regulator

4. Adjustable Output Voltage

5. 1.5% Output Voltage Accuracy

6. Current Mode Control with Selectable Compensation

Official Site : https://www.ti.com/product/lm5001-q1

LM5001-Q1 Datasheet

Other data sheets are available within the file: LM5001, LM5001Q1

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Description

The MAX1515 constant-off-time, pulse-width-modulated(PWM) source/sink step-down DC-DC converter is optimized for use in low-voltage active-termination power rails or chipset power supplies in notebook and sub notebook computers. This device features dual internal n-channel MOSFET power switches for high efficiency and reduced component count. External Schottky diodes are not required. An integrated boost switch eliminates the need for an external boost diode. The internal 40mΩNMOS power switches easily source and sink continuous load currents up to 3A. The MAX1515 produces an adjustable output from +0.5V to +2.7V and achieves efficiencies as high as 95%.

Features

1. Dual 40mΩ Internal n-Channel MOSFETs
2. Integrated Boost Switch
3. +1.3V to +3.6V Input Voltage Range
4. 1% VOUTAccuracy Over Line and Load
5. 1MHz Maximum Switching Frequency
6. DDR Termination Regulator (DDR Mode)
(1) Tracking Output Voltage
(2) Source/Sink Pulse Skipping
(3) ±5mA Reference Buffer

7. Output Voltage (Non-DDR Mode)
(1) +2.5V, +1.8V, or +1.5V Pin Selectable
(2) +0.5V to +2.7V Adjustable

8. 1.1V ±0.75% Reference Output
9. Adjustable Soft-Start Inrush Current Limiting
10. < 1µA (typ) Shutdown Supply Current
11. < 800µA (max) Operating Supply Current
12. Selectable Pulse-Skipping Operation at Light Loads
13. Positive and Negative Current Limit
14. Power-Good Window Comparator
15. Output Short-Circuit Protection

Regulator

LM5001-Q1 Datasheet PDF – Switch-mode Regulator

Description

Features

LM5001-Q1 Datasheet

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MAX1515 Datasheet PDF – Step-Down / DDR Regulator

Description

Features

MAX1515 Datasheet PDF Download