EL7535

Features:

• Extremely small 350mA DC/DC converter
• Max height 1.1mm MSOP10 package
• Possibly uses only five tiny external components with fixed output
• Power-On-Reset output (POR)
• Internally-compensated voltage mode controller
• Up to 94% efficiency
• <1µA shut-down current
• Overcurrent and over-temperature protection
• Pb-Free plus anneal available (RoHS compliant)


Application

• PDA and pocket PC computers
• Bar code readers
• Cellular phones
• Portable test equipment
• Li-Ion battery powered devices
• Small form factor (SFP) modules



Pinout




Specifications

V_IN, V_DD, POR to SGND. . . . . . . . . . . . . . . . . . . . . . -0.3V to +6.5V
L_X to PGND . . . . . . . . . . . . . . . . . . . . . . . . . -0.3V to (V_IN + +0.3V)
RSI, EN, V_O, FB to SGND . . . . . . . . . . . . . . . -0.3V to (V_IN + +0.3V)
PGND to SGND . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.3V to +0.3V
Peak Output Current . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 500mA
Operating Ambient Temperature . . . . . . . . . . . .  .-40°C to +85°C
Storage Temperature . . . . . . . . . . . . . . . . . . . . .-65°C to +150°C
Junction Temperature . . . . . . . . . . . . . . . . . . . . . . .. . . . . +145°C



Description

   The EL7535 is a synchronous, integrated FET 350mA stepdown regulator in a MSOP10 package. The regulator is internally compensated, which makes it possible to use just five tiny external components to form a complete DC/DC converter. The regulator operates with an input voltage range from 2.5V to 6V, which accommodates supplies of 3.3V, 5V, or a Li-Ion battery source. The output can be externally set from 0.8V to V_IN with a resistive divider.

   The EL7535 features PWM mode control. The operating frequency is typically 1.4MHz. Additional features include <1µA shut-down current, short-circuit protection, and overtemperature protection.

   The EL7535 is available in the 10-pin MSOP package and is specified for operation over the full -40°C to +85°C temperature range.