供应DC/DC转换器XC6368A503MR

XC6367/XC6368 Series

XC6368A503MR

PWM Controlled, PWM/PFM Switchable Step-up DC/DC Controllers

The XC6367/XC6368A503MR series are multi-functional step-up DC/DC controllers which provide high efficiency outputs by using an externally connected transistor, coil, diode and capacitor. Output voltage is selectable in 0.1V increments within a range of 1.5V ~ 6.5V (±2.5%). For output voltages outside this range, we recommend FB version, which has a 1.0V internal reference voltage. Using the FB version, the required output voltage can be set-up using 2 external resistors.

With a 300kHz oscillation frequency, the size of the external components can be reduced.

Control switches from PWM to PFM during light loads with the XC6368A503MR (PWM/PFM switchable) and the series is highly

efficient from light loads to large output currents.

Soft start time of XC6367/ XC6368A503MRA, B, and E series is internally set to 10ms and XC6367/XC6368A503MRC, D, and F series regulate

soft-start time by connecting resistors and capacitors externally.

During stand-by (CE pin "Low"), supply current is reduced to less than 0.5μA.

APPLICATIONS （用途）：

1.Electronic information organizers

2.Palmtops

3.Cellular and portable phones

4.Portable audio systems

5.Various multi-function power supplies

FEATURES（特点）：

Input Voltage Range : 0.9V ~ 10V

Operating Voltage Range : 2.0V ~ 10V

Output voltage Range : 1.5V ~ 6.5V (0.1V increments) (±2.5%)

Oscillation Frequency : 300kHz, 100kHz (±15%)

Custom products for 180kHz, 500kHz

Output Current : More than 200mA (VIN=1.8V, VOUT=3.3V)

High Efficiency : 84% (TYP.)

Stand-by capability : ISTB=0.5μA (MAX.)

Selection : Soft-start set-up external

Output voltage set-up internal (VOUT)

Output voltage set-up external (FB)

PWM/PFM Control (XC6368)

Package : SOT-25

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