参数资料
型号: MAX8795A+
厂商: MAXIM INTEGRATED PRODUCTS INC
元件分类: 稳压器
英文描述: 1.6 A SWITCHING REGULATOR, 1400 kHz SWITCHING FREQ-MAX, QCC32
封装: 5 X 5 MM, 0.80 MM HEIGHT, LEAD FREE, MO-220WHHD-2, TQFN-32
文件页数: 22/24页
文件大小: 387K
代理商: MAX8795A+
MAX8795A
TFT-LCD DC-DC Converter with
Operational Amplifiers
_______________________________________________________________________________________
7
STEP-UP REGULATOR SOFT-START
(HEAVY LOAD)
MAX8795A toc04
2ms/div
A: VIN, 5V/div
B: VMAIN, 5V/div
C: INDUCTOR CURRENT, 1A/div
0V
A
B
0V
C
0A
10
s/div
STEP-UP REGULATOR PULSED
LOAD-TRANSIENT RESPONSE
13.9V
50mA
C
MAX8795A toc05
B
0A
A
A: LOAD CURRENT, 1A/div
B: VMAIN, 200mV/div, AC-COUPLED
C: INDUCTOR CURRENT, 1A/div
TIMER-DELAYED OVERLOAD PROTECTION
MAX8795A toc06
40ms/div
A: VMAIN, 2V/div
B: INDUCTOR CURRENT, 1A/div
A
B
0A
0U
REF VOLTAGE LOAD REGULATION
MAX8795A
toc07
LOAD CURRENT (
A)
REF
VOLTAGE
(V)
40
30
20
10
1.2475
1.2480
1.2485
1.2490
1.2495
1.2500
1.2470
050
Typical Operating Characteristics (continued)
(Circuit of Figure 1, VIN = 5V, VMAIN = 14V, VGON = 25V, VGOFF = -10V, TA = +25°C, unless otherwise noted.)
GATE-ON REGULATOR LINE REGULATION
MAX8795A
toc08
INPUT VOLTAGE (V)
VOLTAGE
ERROR
(%)
29
28
27
26
-0.6
-0.4
-0.2
0
-0.8
25
30
IPOS = 20mA
GATE-ON REGULATOR LOAD REGULATION
MAX8795A
toc09
LOAD CURRENT (mA)
VOLTAGE
ERROR
(%)
15
10
5
-0.3
-0.1
-0.5
020
IBOOST = 200mA
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