Step-Down

T6322 Datasheet – PWM Control 1.5A Step-Down Converter

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Part Number: T6322, T6322A-AXG, T6322A-ADG

Function: PWM Control 1.5A Step-Down Converter

Package : SOT-23, SOP-8 type

Manufacturer: TM Technology

Image :

T6322 pwm converter
 

Description

The T6322 is a continuous mode inductive step-down converter, designed for driving single or multiple series connected LEDs efficiently from a voltage source higher than the LED voltage. The device operates from an input supply between 7V and 30V and provides an externally adjustable output current of up to 1.5A. Depending upon supply voltage and external components, this can provide up to 42 watts of output power. The T6322A includes the output switch and a high side output current sensing circuit, which uses an external resistor to set the nominal average output current.

Applications Circuit
T6322 circuit
Features

• Wide Input Voltage Range: 7V to 30V
• LED Output Current Up to 1.5A
• Soft-start
• Single pin on/off and brightness control using DC voltage or PWM
• High efficiency (up to 97%)
• Up to 1MHz switching frequency
• Typical 5% output current accuracy

Pinout
T6322 datasheet pinout
Applications
• LED/Display Back Light Driver
• Lightings
• Portable Communication Devices
• Handheld Electronics

T6322 Datasheet PDF Download


 

AAT1171 Datasheet – 600mA, Voltage-Scaling Step-Down Converter

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Part Number: AAT1171

Function: 600mA, Voltage-Scaling Step-Down Converter for RF Power Amplifier

Pacage : TDFN33-12 ( 3x3mm 12-pin )

Manufacturer: Advanced Analogic Technologies

Pinouts:

AAT1171 datasheet

Description

The AAT1171 SwitchReg dynamically controls the operating voltage of a WCDMA or CDMA power amplifier inside single-cell, lithium-ion battery-powered systems. The AAT1171 outputs a voltage between 0.6V and 3.6V, thereby optimizing the amplifier efficiency at both low and high transmit levels.

Features

1. VIN Range: 2.7V to 5.5V
2. Variable Output Voltage: 0.6V to 3.6V
3. 600mA Output Current
4. DAC Input: 0.2V to 1.2V
5. High Output Accuracy : ±3%
6. 45µA No Load Quiescent Current
7. Internal Soft Start Limits Startup Current and Output Voltage Overshoot
8. Synchronizable to External 19.8MHz System Clock

Applications

1. WCDMA or CDMA PA in Cellular Phones, Smartphones, Feature Phones, etc.
2. Express Card
3. PCMCIA Data Cards

Other data sheets are available within the file: AAT1171IWP-1-T1, AAT1171IWP-4-T1, AAT1171IWP-5-T1

AAT1171 Datasheet PDF Download

AAT1171 pdf