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Fujitsu MB39C026 Manual
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Fujitsu MB39C026 Manual

Fujitsu MB39C026 Manual

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Fujitsu ASSP Product
Power Management
1/14
Evaluation Board Manual
Evaluation Board Manual
MB39C026
MB39C026
(SON
-
10)
(SON
-
10)
MB39C022
-
EVB03
MB39C022
-
EVB03
(MB39C026 and MB39C022 share the same evaluation board)
(MB39C026 and MB39C022 share the same evaluation board)
Rev 1.0E
June, 2008
MB39C026 Evaluation Board

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Summary of Contents for Fujitsu MB39C026

  • Page 1 Power Management 1/14 Evaluation Board Manual Evaluation Board Manual MB39C026 MB39C026 (SON (SON MB39C022 EVB03 MB39C022 EVB03 (MB39C026 and MB39C022 share the same evaluation board) (MB39C026 and MB39C022 share the same evaluation board) Rev 1.0E June, 2008 MB39C026 Evaluation Board...

  • Page 2: Evaluation Board Specification

    1. Description 1. Description The MB39C026 is a two channels power supply IC. It consists of one channel DC/DC Converter and one channel LDO regulator. The DC/DC converter has fast line transient response and load regulation with current mode control topology.

  • Page 3: Terminal Information

    • Turn on the power to VIN(power supply voltage). •When IC operates normally, the voltage level at each output are as follows: MB39C026G: VO1=1.2V, VO2=3.3V, POR=VIN MB39C026J: VO1=1.2V, VO2=2.85V, POR=VIN MB39C026L: VO1=1.2V, VO2=1.8V, POR=VIN MB39C026N: VO1=1.8V, VO2=1.2V, POR=VIN MB39C026 Evaluation Board...

  • Page 4: Evaluation Board Layout

    Fujitsu ASSP Product Power Management 4/14 5. Evaluation Board Layout 5. Evaluation Board Layout MB39C022-EVB03 Rev 1.0 (Top View) Top Side Silkscreen Bottom Side Silkscreen MB39C026 Evaluation Board...
  • Page 5 Fujitsu ASSP Product Power Management 5/14 Board Layout (Top View) MB39C022-EVB03 Rev 1.0 Top Side Metal Bottom Side Metal MB39C026 Evaluation Board...

  • Page 6: Circuit Diagram

    VIN, VO1, VO2, POR, PGND, PGND1, Connecting Pins WT-2-1 MacEight AGND, EN1, EN2 No Mount JP1, JP2 Header 1X2 No Mount R4 No Mount C6 Capacitor 4.7uF (10V) Short JP3, JP4 Jumper (pattern short) TDK: TDK Corporation MB39C026 Evaluation Board...

  • Page 7: Output Voltage Setting

    R4 is open; the POR will be connected VIN. When R4 has a 1M resistor and R3 is open; the POR pin will be connected to VO1. By default, only R3 require a 1M resistor while R4 is open. MB39C026 Evaluation Board...

  • Page 8: Reference Data

    VO1=1.8V; C1=C2=4.7uF CH1 Load Regulation CH1 Load Regulation 1.88 1.28 1.86 1.26 1.84 1.24 1.82 1.22 1.78 1.18 VIN=3.7V VIN=3.7V 1.76 1.16 VIN=4.3V VIN=4.3V 1.74 1.14 VIN=5.5V VIN=5.5V 1.72 1.12 IO1 Load Current (A) IO1 Load Current (A) MB39C026 Evaluation Board...

  • Page 9: Switching Waveform

    VIN Input Voltage (V) (4) Switching Waveform CH1 Test Condition: CH1 Test Condition: EN1=EN2=VIN; EN1=EN2=VIN; VO1=1.8V; IO1=250mA; C1=C2=4.7uF VO1=1.8V; IO1=20mA; C1=C2=4.7uF VO2=3.3V; IO2=150mA; C4=C5=1uF VO2=3.3V; IO2=150mA; C4=C5=1uF 5V/div 5V/div 100mA/div 100mA/div 20mV/div 20mV/div 20mV/div 20mV/div 500ns/div 5us/div MB39C026 Evaluation Board...
  • Page 10 VO2=1.2V; C4=C5=1uF CH2 Load Regulation CH2 Load Regulation 1.88 1.28 1.86 1.26 1.84 1.24 1.82 1.22 1.78 1.18 VIN=3.7V VIN=3.7V 1.76 1.16 VIN=4.3V VIN=4.3V 1.14 1.74 VIN=5.5V VIN=5.5V 1.72 1.12 IO2 Load Current (A) IO2 Load Current (A) MB39C026 Evaluation Board...
  • Page 11 VO2=1.2V; C4=C5=1uF CH2 Line Regulation CH2 Line Regulation 1.88 1.28 1.86 1.26 1.84 1.24 1.82 1.22 1.18 IO2=0mA 1.78 IO2=0mA 1.16 1.76 IO2=120mA IO2=120mA 1.14 1.74 IO2=300mA 1.12 IO2=300mA 1.72 VIN Input Voltage (V) VIN Input Voltage (V) MB39C026 Evaluation Board...
  • Page 12 MB39C026N CH2 Test Condition: EN2=VIN; EN1=0V EN2=VIN; EN1=0V VO2=1.8V; IO2=100mA; Cin=0 VO2=1.2V; IO2=100mA; Cin=0 Power Supply Rejection Ratio IO2=100mA Power Supply Rejection Ratio IO2=100mA VIN=3.7V VIN=3.7V VIN=4.3V VIN=4.3V 1000 10000 100000 1000000 1000 10000 100000 1000000 Freq (Hz) Freq (Hz) MB39C026 Evaluation Board...
  • Page 13 20mV/div 20us/div 10us/div CH1 Load Transients CH2 Load Transients (9) Startup Sequence Test Condition: VIN=EN1=EN2=3.7V; VO1=1.2V; C1=C2=4.7uF; IO1=250mA; VO2=3.3V; C4=C5=1uF; IO2=150mA 2V/div 2V/div IO1=250mA IO1=250mA 2V/div 2V/div IO2=150mA IO2=150mA 2V/div 2V/div 20ms/div 50us/div POR Waveform Startup Waveform MB39C026 Evaluation Board...

  • Page 14: Order Number

    Also, FUJITSU is unable to assume responsibility for infringement of any patent rights or other rights of third parties arising from the use of this information or circuit diagrams.

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