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The MB39A110 is a 4-channel DC/DC converter IC using pulse width modulation (PWM). This IC is ideal for up conversion, down conversion, and up/down conversion.
This is built-in 4ch in TSSOP-38P package and operates at 2 MHz Max. Each channel can be controlled, and soft-start.
This is an ideal power supply for high-performance portable devices such as digital still cameras.
This product is covered by US Patent Number 6,147,477.
MB39A110 Maximum Ratings
Parameter
Symbol
Conditions
Rating
Unit
Min
Max
Power supply voltage
VCC
VCC, VCCO terminal
-
12
V
Output current
IO
OUT1 to OUT4 terminal
-
20
mA
Peak output current
IOP
OUT1 to OUT4 terminal, Duty 5%(t = 1/fOSC*Duty)
-
400
mA
Power dissipation
PD
Ta +25 °C
-
1680*
mW
Storage temperature
Tstg
-
-55
+125
°C
* : The packages are mounted on the epoxy board (10 cm * 10 cm).
WARNING: Semiconductor devices can be permanently damaged by application of stress (voltage, current, temperature, etc.) in excess of absolute maximum ratings. Do not exceed these ratings.
MB39A110 Features
• Supports for down-conversion and up/down Zeta conversion (CH1 to CH3) • Supports for up-conversion and up/down Sepic conversion (CH4) • For synchronous rectification (CH1, CH2) • Power supply voltage range : 2.5 V to 11 V • Reference voltage : 2.0 V ± 1 % • Error amplifier threshold voltage : 1.23 V ± 1% • High-frequency operation capability: 2 MHz (Max) • Standby current : 0 mA (Typ) • Built-in soft-start circuit independent of loads • Built-in totem-pole type output for MOS FET • Short-circuit detection capability by external signal (-INS terminal)