Datasheet

MAX17014
Low-Cost Multiple-Output
Power Supply for LCD TVs
12 ______________________________________________________________________________________
Typical Operating Characteristics (continued)
(Circuit of Figure 1. V
IN
= V
INL
= V
SUP
= 12V, AV
DD
= 16V, V
GON
= 34.5V, V
GOFF
= -6V, V
OUT1
= 3.3V, T
A
= +25°C, unless other-
wise noted.)
POSITIVE CHARGE-PUMP REGULATOR
NORMALIZED LOAD REGULATION
MAX17014 toc16
LOAD CURRENT (mA)
OUTPUT VOLTAGE ERROR (%)
75
-0.8
-1.2
-1.6
-0.4
0
0.4
-2.0
015010025 50 125
POSITIVE CHARGE-PUMP REGULATOR
LOAD-TRANSIENT RESPONSE
MAX17014 toc17
40.0µs/div
A: V
SRC
, 100mV/div
B: LOAD CURRENT, 20mA/div
A
70mA
10mA
34.8V
B
NEGATIVE CHARGE-PUMP REGULATOR
NORMALIZED LINE REGULATION
MAX17014 toc18
V
IN
(V)
OUTPUT VOLTAGE ERROR (%)
1511 13
-0.35
-0.55
-0.15
0.05
0.25
-0.75
9161410
12
NEGATIVE CHARGE-PUMP REGULATOR
NORMALIZED LOAD REGULATION
MAX17014 toc19
LOAD CURRENT (mA)
OUTPUT VOLTAGE ERROR (%)
100 200
-0.4
-0.6
-0.8
-1.0
-0.2
0
0.2
-1.2
025050
150
NEGATIVE CHARGE-PUMP REGULATOR
LOAD-TRANSIENT RESPONSE
MAX17014 toc20
20.0µs/div
A: V
GOFF
, 100mV/div
B: LOAD CURRENT, 65mA/div
A
110mA
10mA
-6V
B
POWER-UP SEQUENCE
MAX17014 toc21
20.0ms/div
A: V
EN1
, 5V/div
B: V
OUT
, 5V/div
C: V
DEL1
, 5V/div
D: V
GOFF
, 5V/div
E: V
AVDD
, 10V/div
F: V
DEL2
, 5V/div
G: V
SRC
, 20V/div
A
0V
0V
0V
0V
0V
0V
B
C
D
E
F
G
V
EN2
= VL