TCR5SB15 Datasheet, PDF (6/17 Pages) Toshiba Semiconductor – 200mA CMOS Low-Dropout Regulator (Point Regulator)

Application Note
1. Recommended Application Circuit
V_OUT
NC
Control Level
HIGH
LOW
TCR5SB15～TCR5SB50
Operation
ON
OFF
V_IN GND CONTROL
The figure above shows the recommended configuration for using a Low-Dropout regulator. Insert a capacitor at
Vout and Vin pins for stable input/output operation. (Ceramic capacitors can be used)
If the control function is not to be used, Toshiba recommend that the control pin is connected to the V_IN pin.
2. Power Dissipation
Power dissipation of TCR5SBxx series is independent and shows in Absolute Maximum Ratings when it is
mounted on the board. Testing size and pattern shows below.
Testing Board of Thermal Resistance
V_OUT
NC
C_OUT
C_IN
V_IN
GND CONTROL
Board material: Glass Epoxy, Board dimension 30 mm × 30 mm
Copper
area:
50
2
mm ,
t
=
0.8
mm
400
①
300
P_D – Ta
200
②
100
① Board dimension 30 mm × 30 mm,
t = 0.8 mm Copper area 50 mm²,
mounted on Glass Epoxy Board
0 ^{② Unit Rating}
−40
0
40
80
120
Ambient temperature T_a (°C)
3. Ripple Rejection
TCR5SBxx series are designed for superior ripple rejection characteristic. Even an output changes with steep
6
2007-11-01