Shared Projects by mousebitelabs

This is a simple test board using the TPS61202 chip to create a more stable 5V power supply for the Game Boy Color. Also included are locations for the original 3.3V regulator and a replacement TPS62203 buck converter, in order to compare power consumption between the two chips. I also included a region at the top of the board for a TPS61202 breakout for breadboarding.

The enable pin on the left goes to the PS and EN pins of the 61202. The UVLO is programmed to turn off when VCC input is less than 1.8V with the parts list below.

U1: TPS61202

U2: TPS62203

U3: RN5RT33A (GBC 3.3V regulator)

R1 = R3 = 10kΩ

R2 = 61.9kΩ

C1 = C5 = C6 = C10 = 10uF

C3 = C7 = 0.1uF

C4 = C8 = 1uF

C9 = 4.7uF

This is a test board for the GBC that uses the LM4853 for cleaner, louder audio. This design is untested!

U1 - LM4853

RFL = RFR = 20kΩ

RDL = RDR = 1kΩ

RPU = 100kΩ

CS = CB = 1uF

COR = COL = 100uF

(100uF, 6.3V cap: EEE-FT0J101AR)

INPUT:

L - LIN net

R - RIN net

POWER:

G - GND

V - VDD

PHONE:

S - Jack switch

G - GND

R - Right

L - Left

This is a test board for the GBC that uses the LM4853 for cleaner, louder audio. This design is untested! I added a breakout on the top of the board for easy breadboarding.

U1 - LM4853

RFL = RFR = 20kΩ

RDL = RDR = 1kΩ

RPU = 100kΩ

CS = CB = 1uF

COR = COL = 100uF

(100uF, 6.3V cap: EEE-FT0J101AR)

INPUT:

L - LIN net

R - RIN net

POWER:

G - GND

V - VDD

PHONE:

S - Jack switch

G - GND

R - Right

L - Left