isl6237 Intersil Corporation, isl6237 Datasheet - Page 16

• Manufacturer Part Number: isl6237
• Description: High-efficiency, Quad-output, Main Power Supply Controllers For Notebook Computers
• Manufacturer: Intersil Corporation

Typical Performance Curves
LGATE1 5V/DIV
V
LGATE1 5V/DIV
FIGURE 46. LOAD TRANSIENT V
OUT1
FIGURE 48. LDO TRACKING TO LDOREFIN
FIGURE 44. LOAD TRANSIENT V
RIPPLE 50mV/DIV
LDOREFIN 0.5V/DIV
IL1 5A/DIV
V
OUT1
V
V
V
IL2 5A/DIV
OUT2
OUT
V
OUT2
OUT2
RIPPLE 20mV/DIV
RIPPLE 20mV/DIV
RIPPLE 50mV/DIV
LDO 1V/DIV
RIPPLE 50mV/DIV
RIPPLE 50mV/DIV
16
OUT1
OUT1
= 3.3V (PWM)
Circuit of Figure 62 and Figure 63, no load on LDO, OUT1, OUT2, and REF, V
EN2 = EN1 = VCC, VBYP = 5V, PVCC = 5V, V
otherwise noted. Typical values are at T
= 5V
ISL6237
FIGURE 49. START-UP V
POK1 2V/DIV
FIGURE 47. LOAD TRANSIENT V
FIGURE 45. LOAD TRANSIENT V
A
EN1 5V/DIV
= +25°C. (Continued)
V
V
OUT1
EN_LDO
V
OUT2
OUT2
LGATE2 5V/DIV
LGATE1 5V/DIV
0.5V/DIV
RIPPLE 50mV/DIV
V
IL2 5A/DIV
IL1 5A/DIV
RIPPLE 50mV/DIV
OUT1
= 5V, T
OUT1
RIPPLE 100mV/DIV
A
= 1.5V (NO LOAD, SKIP MODE)
= -40°C to +100°C , unless
V
OUT1
OUT1
OUT1
RIPPLE 20mV/DIV
IL1 2A/DIV
= 3.3V (SKIP)
= 5V (SKIP)
IN
= 12V,
March 16, 2007
FN6418.1