ISL6236 Datasheet, PDF (14/35 Pages) Intersil Corporation – High-Efficiency, Quad-Output, Main Power Supply Controllers for Notebook Computers

ISL6236
Typical Performance Curves
Circuit of Figures 66, 67 and 68, no load on LDO, OUT1, OUT2, V_REF3, and REF, V_IN = 12V,
EN2 = EN1 = VCC, V_BYP = 5V, PVCC = 5V, V_{EN LDO} = 5V, T_A = -40°C to +100°C, unless
otherwise noted. Typical values are at T_A = +25°C. (Continued)
50
1400
45
40
35
30
25
20
7 9 11 13 15 17 19 21 23 25
INPUT VOLTAGE (V)
FIGURE 33. PWM NO LOAD INPUT CURRENT vs V_IN
(EN = EN2 = EN LDO = VCC)
1200
1000
800
600
400
200
0.0
7
9 11 13 15 17 19 21 23 25
INPUT VOLTAGE (V)
FIGURE 34. SKIP NO LOAD INPUT CURRENT vs V_IN
(EN1 = EN2 = EN LDO = VCC)
177.5
177.0
176.5
176.0
175.5
175.0
174.5
174.0
173.5
173.0
7
9 11 13 15 17 19 21 23 25
INPUT VOLTAGE (V)
FIGURE 35. STANDBY INPUT CURRENT vs V_IN
(EN = EN2 = 0, EN LDO = VCC)
26.5
26.0
25.5
25.0
24.5
24.0
23.5
23.0
22.5
22.0
7
9 11 13 15 17 19 21 23 25
INPUT VOLTAGE (V)
FIGURE 36. SHUTDOWN INPUT CURRENT vs V_IN
(EN = EN2 = EN LDO = 0)
V_REF3 500mV/DIV
LDO 1V/DIV
CP 5V/DIV
REF 1V/DIV
FIGURE 37. REF, VREF3, LDO = 5V, CP, NO LOAD
14
EN1 5V/DIV
V_OUT1 2V/DIV
IL1 2A/DIV
POK1 2V/DIV
FIGURE 38. START-UP V_OUT1 = 5V (NO LOAD, SKIP MODE)
FN6373.6
April 29, 2010