TC1303A_08 Datasheet, PDF (17/38 Pages) Microchip Technology – 500 mA Synchronous Buck Regulator, + 300 mA LDO with Power-Good Output

TC1303A/TC1303B/TC1303C/TC1304
Note: Unless otherwise indicated, V_IN1 = V_IN2 = SHDN1,2 = 3.6V, C_OUT1 = C_IN = 4.7 µF, C_OUT2 = 1 µF, L = 4.7 µH,
V_OUT1 (ADJ) = 1.8V, T_A = +25°C. Boldface specifications apply over the T_A range of -40°C to +85°C. T_A = +25°C. Adjustable- or fixed-
output voltage options can be used to generate the Typical Performance Characteristics.
FIGURE 2-37:
vs. Time.
V_OUT2 Load Step Response
FIGURE 2-40:
Waveforms.
V_OUT1 and V_OUT2 Shutdown
FIGURE 2-38:
V_OUT1 and V_OUT2 Line Step
Response vs. Time.
FIGURE 2-41:
Power-Good Output Timing.
FIGURE 2-39:
Waveforms.
V_OUT1 and V_OUT2 Start-up
FIGURE 2-42:
(TC1304).
Start-up Waveforms
© 2008 Microchip Technology Inc.
DS21949C-page 17