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Part Name(s) : BD95830MUV BD95830MUV BD95830MUV-E2 ROHM
ROHM Semiconductor
Description : Built-in FET Synchronous Rectification Type DC/DC converters H3Reg™ Type View

2ch DC/DC converter IC

FEATURES
・ Built in 2ch H3Reg DC/DC converter controller
・ Adjustable output voltage setting (0.8V~ 5.5V)

Part Name(s) : MB39A108_03 Fujitsu
Fujitsu
Description : 5-Channel DC/DC Converter IC with Synchronous Rectification View

Product Description
FUJITSU has been putting a great deal of effort into the development of ICs for power managements in high performance portable devices such as digital still cameras. Building on the technological foundation of eight predecessor series (MB3785A, MB3825A, MB3827, MB3881, MB3883, MB39A102, MB39A103, and MB39A110), the company has recently completed“MB39A108”, a 5-channel DC/DC converter IC with Synchronous Rectification. MB39A108 is optimal for multi power supply systems Built-in high performance portable devices.
With the ongoing advancement of high functionality in portable devices, the demand for the miniaturization of Built-in power supplies will continue to grow. This product is a 5-channel DC/DC converter IC with a Synchronous Rectification function based on the pulse width modulation Type (PWM Type). Up-conversion, down-conversion, and up/down conversion are all supported, and each of five channels Built-in a TSSOP-38P package can be controlled and soft-started independently. A soft-start circuit and timer latch short-circuit detection circuit are also mounted to prevent inrush current at power start-up and overcurrent due to output short-circuits. These features make MB39A108 optimal for power supplies in high-performance portable devices such as digital still cameras.

Product Features
■ Supports down-conversion (Synchronous Rectification)
   (CH1)
■ Supports down-conversion and up/down Zeta conversion
   (CH2 to CH3)
■ Supports up-conversion and up/down SEPIC conversion
   (CH4 to CH5)
■ Supports the Synchronous Rectification method
■ Lower starting voltage (CH4 to CH5) : 1.7V
■ Power supply voltage range: 2.5V to 11V
■ Reference voltage: 2.0V±1%
■ Error amplifier threshold voltage:
   1.0V±1% (CH1), 1.23V±1% (CH2 to CH5)
■ Oscillating frequency range: 200kHz to 2.0MHz
■ Standby current: 0μA (Typ.)
Built-in soft-start circuit without load dependency
■ Build-in totem-pole Type output for MOS FET
■ Short-circuit detection from short-circuit input possible
   using external signal (-INS terminal)
■ Package: TSSOP-38P

Part Name(s) : MB39A110 MB39A110EVB MB39A110PFT-E1 Fujitsu
Fujitsu
Description : 4-ch DC/DC Converter IC with Synchronous Rectification View

■DESCRIPTION

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 4 ch 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.



■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 µA (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)

• One Type of package (TSSOP-38 pin : 1 Type)



■APPLICATIONS

• Digital still camera(DSC)

• Digital video camera(DVC)

• Surveillance camera etc.


Part Name(s) : MB39A115 MB39A115PFT MB39A115PV2 Fujitsu
Fujitsu
Description : 5ch DC/DC Converter IC with Synchronous Rectification View

■ DESCRIPTION

The MB39A115 is a 5-channel DC/DC converter IC using pulse width modulation (PWM) , and the MB39A115 is suitable for up conversion, down conversion, and up/down converstion. The MB39A115 is built in 5 channels into TSSOP-38P/BCC-40P package and operates at 2 MHz maximum and, this IC can control and soft-start at each channel. The MB39A115 is suitable for power supply of high performance potable instruments such as a digital still camera (DSC).



■ FEATURES

• Supports for down-conversion with Synchronous Rectification (ch.1)

• Supports for down-conversion and up/down Zeta conversion (ch.2 to ch.4)

• Supports for up-conversion and up/down Sepic conversion (ch.5)

• Low voltage start-up (ch.5) : 1.7 V

• Power supply voltage range : 2.5 V to 11 V

• Reference voltage : 2.0 V ± 1%

• Error amplifier threshold voltage : 1.0 V ± 1% (ch.1) , 1.23 V ± 1% (ch.2 to ch.5)

• Oscillation frequency range : 200 kHz to 2.0 MHz

• Standby current : 0 µA (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)



Part Name(s) : MB39A119 MB39A119QN Fujitsu
Fujitsu
Description : DC/DC Converter IC of Synchronous Rectification for charging Li-ion battery View

■DESCRIPTION

The MB39A119 is the N-ch MOS drive of the SynchronousRectification Type DC/DC converter IC using pulse width modulation (PWM) Type that can charge Li-ion batteryfrom 1 cell to 4 cells and suitable for down-conversion. This IC integrates Built-in comparator for the voltage detection of the AC adapter and switches the power supply to the AC adapter or battery automatically, enabling supply it to system. In addition, the constant voltage control state detection function is built in, which prevents mis-detecting the full charge. The MB39A119 provides a wide range of power supply voltage and low standby current, high efficiency, making it ideal for use as a Built-in charge device in products such as notebook PC.





■FEATURES

• High efficiency : 97 % (Max)

• High-frequency operation : 1 MHz (Max)

Built-in off time control function

Built-in voltage detection function ofAC adapter (ACOK, XACOK terminal)

• Preventing mis-detection for the full charge by the constant voltage control state detection function (CVM terminal)

Built-in two constant current control circuits

• Analog control of constant current value is possible ( +INE1, +INE2 terminal)

Built-in output stage for N-ch MOS FET Synchronous Rectification

Built-in charge stop function at low input voltage

• Output voltage setting accuracy : 4.2 V ±0.74 % (Ta= −10 °C to +85 °C)

Built-in high accuracy charge current detection amplifier : ±4 %

(At input voltage difference 100 mV with Voltage gain 24.5 (V/V)

Built-in high accuracy input current detection amplifier : ±3 %

(At input voltage difference 100 mV with Voltage gain 25 (V/V)

• Arbitrary output voltage can be set by external resistor

• In IC standby mode, output voltage setting resistor is made to be open to prevent inefficient current loss

• Quiescent current : 1.9 mA (Typ)

• Standby current : 0 µA (Typ)

• Package : QFN28


Part Name(s) : MB39A108 MB39A108_06 MB39A108PFT MB39A108PFT-E1 MB39A108PV2 MB39A108PV2-E1 Fujitsu
Fujitsu
Description : 5 ch DC/DC Converter IC with Synchronous Rectification View

ASSP for Power Supply Applications
(DC/DC converter for DSC/camcorder)

■ DESCRIPTION
The MB39A108 is 5-channel DC/DC converter IC using pulse width modulation (PWM), and is suitable for up conversion, down conversion, and up/down conversion. The MB39A108 is built in 5 channels into TSSOP-38P/BCC-40P package and operates at 2 MHz maximum. Each channel can be controlled with soft-start.
The MB39A108 is suitable for power supply of high performance portable instruments such as DSC.

■ FEATURES
• Supports for down-conversion with Synchronous Rectification (CH1)
• Supports for down-conversion and up/down Zeta conversion (CH2, CH3)
• Supports for up-conversion and up/down Sepic conversion (CH4, CH5)
• Low voltage start-up (CH4, CH5) : 1.7 V
• Power supply voltage range : 2.5 V to 11 V
• Reference voltage : 2.0 V ± 1%
• Error amplifier threshold voltage : 1.00 V ± 1% (CH1), 1.23 V ± 1% (CH2 to CH5)
• Oscillation frequency range : 200 kHz to 2.0 MHz
• Standby current : 0 µA (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)
• Two Types of package (TSSOP-38 pin : 1 Type, BCC-40 pin : 1 Type)

■ APPLICATIONS
• Digital still camera (DSC)
• Digital video camera (DVC)
• Surveillance camera etc.

Part Name(s) : DI-31 Power-Integrations
Power Integrations, Inc
Description : DPA-Switch™ 5 V, 70 W DC-DC Converter with Synchronous Rectification View

Design Highlights
• Extremely low component count
• High efficiency, 90% using Synchronous Rectification
• No current sense resistor or current transformer required
• Output overload, open loop and thermal protection
• Accurate input under/overvoltage meets ETSI standards
• 300 kHz switching frequency – optimizes efficiency using simple self-driven Synchronous Rectification

Part Name(s) : MB3885PFV MB3885 Fujitsu
Fujitsu
Description : 1-channel DC/DC Converter IC with Synchronous Rectifier View

■ DESCRIPTION
The MB3885 is a 1-channel DC/DC converter IC using pulse width modulation (PWM) and Synchronous Rectification, designed for down conversion applications.
This device is a power supply with high output drive capacity. Synchronous Rectification also provides for high efficiency.
In addition, a 5 V regulator is built in to reduce the number of system components. The result is an ideal Built-in power supply for driving products with high speed CPU’s such as home TV game devices and notebook PC’s.

■ FEATURES
Synchronous Rectification for high efficiency
• Supply voltage range : 5.5 V to 18 V
Built-in high-precision reference voltage circuit : 2.5 V ± 1%
• Error Amp. threshold voltage : 1.25 V ± 1% (0 °C to 85 °C)
• Oscillator frequency range : 10 kHz to 500 kHz
Built-in soft start circuit with error Amp. input control
• Totem pole Type output for N-ch MOSFET

Part Name(s) : MB3882PFV MB3882 Fujitsu
Fujitsu
Description : 2-channel DC/DC Converter IC with Synchronous Rectifier View

■ DESCRIPTION
The MB3882 is a 2-channel DC/DC converter IC using pulse width modulation (PWM) and Synchronous Rectification, designed for down conversion applications.
This device is a power supply with high output drive capacity. Synchronous Rectification also provides for high efficiency.
In addition, a 5 V regulator is built in to reduce the number of system components. The result is an ideal Built-in power supply for driving products with high speed CPU’s such as home TV game devices and notebook PC’s.

■ FEATURES
Synchronous Rectification for high efficiency
• Supply voltage range : 5.5 V to 18 V
• High-precision reference voltage : 2.5 V ± 1%
• Error Amp. threshold voltage : 1.25 V ± 1% (0 °C to 85 °C)
• Oscillator frequency range : 10 kHz to 500 kHz
Built-in soft start circuit with error Amp. input control
• Totem pole Type output for N-ch MOSFET

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