LT1930 - 1A, 1.2MHz/2.2MHz, Step-Up DC/DC Converters in ThinSOT

A constant frequency internally compensated current mode PWM architecture results in low, predictable output noise that is easy to filter. Low ESR ceramic capacitors can be used at the output, further reducing noise to the millivolt level. The high voltage switch on the LT1930/LT1930A is rated at 36V, making the device ideal for boost converters up to 34V as well as for single-ended primary inductance converter (SEPIC) and flyback designs. The LT1930 can generate 5V at up to 480mA from a 3.3V supply or 5V at 300mA from four alkaline cells in a SEPIC design.

The LT1930/LT1930A are available in the 5-lead ThinSOT package.

Features

1.2MHz Switching Frequency (LT1930)
2.2MHz Switching Frequency (LT1930A)
Low VCESAT Switch: 400mV at 1A
High Output Voltage: Up to 34V
5V at 480mA from 3.3V Input (LT1930)
12V at 250mA from 5V Input (LT1930A)
Wide Input Range: 2.6V to 16V
Uses Small Surface Mount Components
Low Shutdown Current: <1µA
Low Profile (1mm) ThinSOT™ Package
Pin-for-Pin Compatible with the LT1613

Typical Application

Applications

TFT-LCD Bias Supply
Digital Cameras
Cordless Phones
Battery Backup
Medical Diagnostic Equipment
Local 5V or 12V Supply
External Modems
PC Cards
xDSL Power Supply

Packaging

Order Information

Part Number	Package	Temp	Price(1-99)	Price (1k)*
LT1930AES5#PBF	SOT-23	E	$2.31
LT1930AES5#TRMPBF	SOT-23	E	$2.31	$1.98
LT1930AES5#TRPBF	SOT-23	E	$2.31	$1.96
LT1930ES5#PBF	SOT-23	E	$2.31
LT1930ES5#TRMPBF	SOT-23	E	$2.31	$1.98
LT1930ES5#TRPBF	SOT-23	E	$2.31	$1.96

Demo Boards

Part Number	Description	Price
DC383B	LTC1930ES5/LTC1931ES5 Demo Board \| 3 Circuits: Boost/SEPIC/Inverter, 5Vin to 12Vout1@300mA, 10V-16Vin to 12Vout2@300mA, 12Vin to -12Vout3@350mA	$75.00
DC397A	LT1930AES5/LT1931AES5 Demo Board \| 3 Circuits: Boost/SEPIC/Inverter: 5Vin to 12Vout1@250mA, 10V-16Vin to 12Vout2@250mA, 12Vin to -12Vout3@250mA	$75.00
DC634A	LT1930AES5 Demo Board \| APD Bias Supply, 3V to 5.5V Input, Vout = 30V to 90V @ Up to 2mA	$75.00