FEB173

FEB173 Datasheet

February 2007

Part	Datasheet
FEB173	FEB173 (pdf)

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FAN5336 Evaluation Board User Manual February 2007 FAN5336 Evaluation Board User Manual to 5.5V Input Range 9V to 33V Output Range 1.5A Peak Switch Current Low Noise Low Shutdown Current <1uA MHz Fixed-Frequency PWM Operation Over Voltage Protection, Shutdown Mode and Soft Start Excellent Regulation Small 6-lead 3x3mm MLP Package Figure 1 FAN5336MPX Description: The FAN5336 Evaluation Board is a compact circuit including the FAN5336 MPX in an MLP package and two small capacitors which can provide regulated output voltage to the load. The inductor-Schottky diode combination and two typically valued resistors are also included to form a resistor divider to the feedback pin. A feed forward capacitor is provided for stability as well. The FAN5336 demo board, a completely assembled and tested surface mount board, provides easy probe access points to all inputs and outputs so that electrical characteristics and waveforms can be easily measured. Figure 2 Schematic Diagram 2007 Fairchild Semiconductor Corporation FAN5336 Version FAN5336 Evaluation Board User Manual Where To Begin: 1 Connect VIN to 5.5V and Gnd 0V . 2 To verify supply current in “ON” and “OFF” modes, observe that in shutdown mode, supply current will drop to the current pulled by the resistor divider. I = VIN / R1 + R2 . Note Use Jumper J1 to connect VIN directly to "ON" or Gnd to "OFF" 3 Observe that VOUT = + VREF = 1.23V typical . 4 Verify that VOUT is independent of VIN when it decreases from 5.5V to 2.7V if the load current does not exceed its maximum value, a function of VIN. Note Although the load current is indirectly limited by the maximum inductor current, VOUT is not allowed to be shorted to ground. Failure results in damaging the Schottky diode and/or the IC Note The Schottky diode D1, rectifies the voltage pulses generated by the inductor Figure 3 PCB Layout 2007 Fairchild Semiconductor Corporation FAN5336 Version FAN5336 Evaluation Board User Manual Figure 4 Start-Up Waveform Table 1 FAN5336 List of Materials Hardware Connector Header SINGLE STR 36POS Qty Ref. Vendor 7 GND,VIN, Digi-Key VOUT,ON/OFF Hardware, SHUNT, PHBR 15 AU Inductor 6.8uH, 1.5A, 35mohm, low profile, 20%, SMD IC System Regulator, MLP-6, FSID FAN5336 Capacitor 180pF, 10%, 50V, COG, 0805 Resistor 10 Kohm, 1%, 0805 Resistor 160 Kohm, 1%, 0805 Capacitor 10 uF/6.3V, 10%, 1206 Capacitor uF/25V, 10%, 1206 Diode Schottky, 30V, 0.2A , SOT-23, FSID BAT54 1 ON/OFF 1 L1 1 R2 1 R1 1 CIN 1 COUT 1 D1 Digi-Key TDK Fairchild Any Panasonic Fairchild S1011-36-ND A26227-ND SLF6028T-6R8M1R5 FAN5332MPX ECJ-3YB0J106K BAT54 Table 2 Ordering Information Product Number Package Type FAN5336 6-Lead MLP Order Code FAN5336MPX 2007 Fairchild Semiconductor Corporation FAN5336 Version

PDF Datasheet Preview

FAN5336 Evaluation Board User Manual

February 2007

FAN5336 Evaluation Board User Manual
to 5.5V Input Range 9V to 33V Output Range 1.5A Peak Switch Current Low Noise Low Shutdown Current <1uA MHz Fixed-Frequency PWM Operation Over Voltage Protection, Shutdown Mode and Soft Start Excellent Regulation Small 6-lead 3x3mm MLP Package

Figure 1 FAN5336MPX

Description:

The FAN5336 Evaluation Board is a compact circuit including the FAN5336 MPX in an MLP package and two small capacitors which can provide regulated output voltage to the load. The inductor-Schottky diode combination and two typically valued resistors are also included to form a resistor divider to the feedback pin. A feed forward capacitor is provided for stability as well. The FAN5336 demo board, a completely assembled and tested surface mount board, provides easy probe access points to all inputs and outputs so that electrical characteristics and waveforms can be easily measured.

Figure 2 Schematic Diagram
2007 Fairchild Semiconductor Corporation

FAN5336 Version

FAN5336 Evaluation Board User Manual

Where To Begin:
1 Connect VIN to 5.5V and Gnd 0V . 2 To verify supply current in “ON” and “OFF” modes, observe that in shutdown mode, supply current will drop to the current pulled by the resistor divider. I = VIN / R1 + R2 . Note Use Jumper J1 to connect VIN directly to "ON" or Gnd to "OFF" 3 Observe that VOUT = + VREF = 1.23V typical . 4 Verify that VOUT is independent of VIN when it decreases from 5.5V to 2.7V if the load current does not exceed its maximum value, a function of VIN. Note Although the load current is indirectly limited by the maximum inductor current, VOUT is not allowed to be shorted to ground. Failure results in damaging the Schottky diode and/or the IC Note The Schottky diode D1, rectifies the voltage pulses generated by the inductor

Figure 3 PCB Layout
2007 Fairchild Semiconductor Corporation

FAN5336 Version

FAN5336 Evaluation Board User Manual

Figure 4 Start-Up Waveform

Table 1 FAN5336 List of Materials

Hardware Connector Header SINGLE STR 36POS

Qty Ref.

Vendor
7 GND,VIN,

Digi-Key

VOUT,ON/OFF

Hardware, SHUNT, PHBR 15 AU Inductor 6.8uH, 1.5A, 35mohm, low profile, 20%, SMD IC System Regulator, MLP-6, FSID FAN5336 Capacitor 180pF, 10%, 50V, COG, 0805

Resistor 10 Kohm, 1%, 0805 Resistor 160 Kohm, 1%, 0805 Capacitor 10 uF/6.3V, 10%, 1206 Capacitor uF/25V, 10%, 1206 Diode Schottky, 30V, 0.2A , SOT-23, FSID BAT54
1 ON/OFF 1 L1
1 R2 1 R1 1 CIN 1 COUT 1 D1

Digi-Key TDK

Fairchild

Any Panasonic Fairchild

S1011-36-ND

A26227-ND SLF6028T-6R8M1R5 FAN5332MPX

ECJ-3YB0J106K BAT54
Table 2 Ordering Information

Product Number

Package Type

FAN5336
6-Lead MLP

Order Code FAN5336MPX
2007 Fairchild Semiconductor Corporation

FAN5336 Version

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Datasheet ID: FEB173 514466