MAX16928CGUP/V+T Maxim Integrated, MAX16928CGUP/V+T Datasheet - Page 6

• Manufacturer Part Number: MAX16928CGUP/V+T
• Description: LCD Drivers Automotive TFT Power Supply
• Manufacturer: Maxim Integrated

Specifications of MAX16928CGUP/V+T

• Rohs: yes

(V
Maxim Integrated
INA
-0.2
-0.4
-0.6
-0.8
-1.0
1.0
0.8
0.6
0.4
0.2
0
= +5V, V
20
(POSITIVE-GATE VOLTAGE REGULATOR)
21
Automotive TFT-LCD Power Supply with Boost
22 23 24 25
SH
LINE REGULATION
I
I
= +12V, V
LOAD
LOAD
V
-0.05
-0.10
-0.15
-0.20
-0.25
-0.30
-0.35
-0.40
CP
= 10mA
= 20mA
VOLTAGE (V)
0
0
LOAD REGULATION (3.3V REGULATOR)
EXTERNAL NPN TRANSISTOR USED
SUPPLY SEQUENCING WAVEFORMS
26 27
50 100 150
GH
Converter and Gate Voltage Regulators
= +18V, V
28
LOAD CURRENT (mA)
(V
200
29
SEQ
10ms/div
250 300
30
= V
GL
INA
= -6V, V
)
350
400
Typical Operating Characteristics (continued)
MAX16928 toc08
8
7
6
5
4
3
2
1
0
(NEGATIVE-GATE VOLTAGE REGULATOR)
0
REG
450
2
500
= 3.3V, T
V
5V/div
V
5V/div
V
5V/div
V
5V/div
V
5V/div
4
ENP
GH
SH
REG
GL
LOAD REGULATION
LOAD CURRENT (mA)
6
8
A
10 12
= +25NC, unless otherwise noted.)
14
450mA
50mA
-0.4
-0.8
-1.2
-1.6
-2.0
-2.4
-2.8
-3.2
-3.6
-4.0
16
0
0
(POSITIVE-GATE VOLTAGE REGULATOR)
18
2
20
LOAD-TRANSIENT RESPONSE
(3.3V LINEAR REGULATOR)
4
LOAD REGULATION
LOAD CURRENT (mA)
6
-0.08
-0.16
-0.24
-0.32
-0.40
0.40
0.32
0.24
0.16
0.08
8
100µs/div
0
10
-24
(NEGATIVE-GATE VOLTAGE REGULATOR)
12 14
-22
-20 -18
MAX16928
16
LINE REGULATION
I
MAX16928 toc14
LOAD
V
I
LOAD
CN
18
= 10mA
VOLTAGE (V)
= 20mA
-16 -14
20
I
500mA/div
V
(AC-COUPLED)
100mV/div
OUT
REG
-12
-10
-8
6