SC4503TSKTRT
IC-4503 REG BOOST ADJ 1.4A TSOT23-5 

The SC4503 is a 1.3MHz current-mode step-up switching regulator with an integrated 1.4A power transistor. Its high switching frequency allows the use of tiny surface-mount external passive components. The SC4503 features a combined shutdown and soft-start pin. The optional soft-start function eliminates high input current and output overshoot during start-up. The internal compensation network accommodates a wide range of voltage conversion ratios. The internal switch is rated at 34V making the device suitable for high voltage applications such as Boost and SEPIC.The SC4503 is available in low-profi le 5-lead TSOT-23 and 8-lead 2X2mm MLPD-W packages. The SC4503’s low shutdown current (< 1μA), high frequency operation and small size make it suitable for portable applications.

Key Features

Low Saturation Voltage Switch: 260mV at 1.4A
1.3MHz Constant Switching Frequency
Peak Current-mode Control
Internal Compensation
Programmable Soft-Start
Input Voltage Range From 2.5V to 20V
Output Voltage up to 27V
Uses Small Inductors and Ceramic Capacitors
Low Shutdown Current (< 1μA)
Low Profi le 5-Lead TSOT-23 and 8-Lead 2X2mm MLPD-W packages
Fully WEEE and RoHS compliant

Ürün Özellikleri:
        
Features    1.3MHz Step-Up Switching Regulator with 1.4A Switch   
Manufacturer    SEMTECH    
Mounting Type    SMT    
Package / Case    TSOT23-5    
Switching Function    Step Up    
Output Type    Adjustable    
Output Voltage    2.5V to 27V    
Input Voltage    2.5V to 20V    
Output Current    1.4A    
Switching Frequency    1.3Mhz    
Operating Temperature    -40°C~+85°C    
Series:    SC450    
Shutdown:    Shutdown    
Development Kit:    SC4503EVB    
Operating Supply Current:    800 uA    
Product Type:    Switching Voltage Regulators        
Subcategory:    PMIC - Power Management ICs    
Supply Voltage - Min:    2.5 V    
Unit Weight:    30 mg

Paket İçeriği:

1 Adet SC4503TSKTRT