Part Number: MAX1518B

Function: TFT-LCD DC-DC Converter

Package: QFN 32 Pin Type

Manufacturer: Maxim Integrated

Pinouts:

 

Description

The MAX1518B includes a high-performance step-up regulator, two linear-regulator controllers, and high-current operational amplifiers for active-matrix, thin-film tran
sistor (TFT), liquid-crystal displays (LCDs). Also included is a logic-controlled, high-voltage switch with adjustable delay.

The step-up DC-DC converter provides the regulated supply voltage for the panel source driver ICs. The converter is a high-frequency (1.2MHz) current-mode regulator with an integrated 14V n-channel MOSFET that allows the use of ultra-small inductors and ceramic capacitors. It provides fast transient response to pulsed loads while achieving efficiencies over 85%.

Features

1. 2.6V to 6.5V Input Supply Range

2. 1.2MHz Current-Mode Step-Up Regulator
(1) Fast Transient Response to Pulsed Load
(2) High-Accuracy Output Voltage (1.5%)
(3) Built-In 14V, 2.4A, 0.16Ωn-Channel MOSFET
(4) High Efficiency (90%)
3. Linear-Regulator Controllers for VGONand VGOFF

4. High-Performance Operational Amplifiers
(1) ±150mA Output Short-Circuit Current
(2) 13V/µs Slew Rate
(3) 12MHz, -3dB Bandwidth
(4) Rail-to-Rail Inputs/Outputs

5. Logic-Controlled, High-Voltage Switch with Adjustable Delay

MAX1518B Datasheet PDF Download

Other data sheets are available within the file: MAX1518, MAX1518BETJ

Part Number: TPS62175

Marking : 62175

Function: 28V, 0.5A Step-Down Converter with SNOOZE Mode

Package: WSON 10 Pin Type

Manufacturer: Texas Instruments

Pinouts:

 

Description

The TPS62175, TPS62177 is a high efficiency synchronous step-down DC-DC converter, based on the DCS-Control topology.

With a wide operating input voltage range of 4.75 to 28V, the device is ideally suited for systems powered from multi cell Li-Ion as well as 12V and even higher intermediate supply rails, providing up to 500mA output current.

The TPS62175, TPS62177 automatically enters Power Save Mode at light loads, to maintain high efficiency across the whole load range. As well, it features a Sleep Mode to supply applications with advanced power save modes like ultra low power micro controllers. The Power Good output may be used for power sequencing and/or Power On Reset.

Features

1. DCS-Control Topology

2. Input Voltage Range 4.75 V to 28 V

3. Quiescent Current Typically 4.8 µA (Sleep Mode)

4. 100% Duty Cycle Mode

5. Active Output Discharge

6. Power Good Output

7. Output Current of 500 mA

TPS62175 Datasheet PDF Download

Other data sheets are available within the file:

TPS62175DQC, TPS62175DQCR, TPS62175DQCT, TPS62177