MB39A136
MB39A136 is 2ch PFM/PWM DC/DC Converter IC manufactured by Cypress.
2ch PFM/PWM DC/DC Converter IC with Synchronous Rectification
MB39A136 is 2ch step-down DC/DC converter IC of the current mode N-ch/N-ch synchronous rectification method. It contains the enhanced protection Features
, and supports the symmetrical-phase method and the ceramic capacitor. MB39A136 realizes rapid response, high efficiency, and low ripple voltage, and its high-frequency operation enables the miniaturization of inductors and I/O capacitors.
Features
- High efficiency
- For frequency setting by external resistor : 100 k Hz to 1 MHz
- Error Amp threshold voltage
: 0.7 V ± 1.0%
- Minimum output voltage value
: 0.7 V
- Wide range of power-supply voltage
: 4.5 V to 25 V
- PFM/PWM auto switching mode and fixed PWM mode selectable
- Supports Symmetrical-Phase method
- With built-in over voltage protection function
- With built-in under voltage protection function
- With built-in over current protection function
- With built-in over-temperature protection function
- With built-in soft start/stop circuit without load dependence
- With built-in synchronous rectification type output steps for N-ch MOS FET
- Standby current : 0 [μA] Typ
- Small package : TSSOP-24
Application
- Digital TV
- Photocopiers
- Surveillance cameras
- Set-top boxes (STB)
- DVD players, DVD recorders
- Projectors
- IP...