ISL78419 Datasheet, PDF (10/20 Pages) Intersil Corporation – Integrated Automotive TFT-LCD Power Supply Regulator

ISL78419
Typical Performance Curves (Continued)
VGHM
CE = 10pF, RE = 50kΩ
VGHM
CE = 10pF, RE = 150kΩ
FIGURE 7. GPM CIRCUIT WAVEFORM
FIGURE 8. GPM CIRCUIT WAVEFORM
VGHM
FIGURE 9. V_GHM FOLLOWS V_GH WHEN THE SYSTEM POWERS OFF
2.4854
2.4852
2.4850
2.4848
2.4846
2.4844
2.4842
I_LDO = 1mA
2.4840
2.4838
2.4836
3.0
3.5
4.0
4.5
VLDO_IN (V)
5.0
5.5
FIGURE 11. LDO LINE REGULATION vs V_IN
FIGURE 10. VCOM RISING SLEW RATE
0.000
-0.005
-0.010
-0.015
-0.020
V_LDO = 2.5V
-0.025
-0.030
0
50
100
150
200
250
300 350
I_LDO (mA)
FIGURE 12. LDO LOAD REGULATION vs I_LDO
10
FN8292.1
December 3, 2012