参数资料
| 型号： | MAX8758ETG+T |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 2/20页 |
| 文件大小： | 0K |
| 描述： | IC REG STEP UP 24-TQFN |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 2,500 |
| 应用： | 转换器，TFT，LCD |
| 输入电压： | 1.8 V ~ 5.5 V |
| 输出数： | 1 |
| 输出电压： | 5V |
| 工作温度： | 0°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 24-WFQFN 裸露焊盘 |
| 供应商设备封装： | 24-TQFN-EP（4x4） |
| 包装： | 带卷 (TR) |
Step-Up Regulator with Switch Control
and Operational Amplifier for TFT LCD
ABSOLUTE MAXIMUM RATINGS
IN, SHDN , CTL, LDO to GND ...................................-0.3V to +6V
SUPB, LX, OUT to GND..........................................-0.3V to +14V
OUTB, NEGB, POSB to GND ..................-0.3V to (SUPB + 0.3V)
THR, DLP, MODE, FREQ, COMP, FB,
SS to GND..............................................-0.3V to VLDO + 0.3V
PGND to GND ......................................................-0.3V to + 0.3V
SRC to GND ..........................................................-0.3V to + 30V
GON, DRN to GND ....................................-0.3V to VSRC + 0.3V
GON RMS Current Rating................................................± 50mA
OUTB RMS Current Rating ..............................................± 60mA
LX RMS Current Rating .........................................................1.6A
Continuous Power Dissipation (TA = +70°C)
24-Pin, 4mm x 4mm Thin QFN
(derate 16.9mW/°C above +70°C) ..........................1349.1mW
Operating Temperature Range ...........................-40°C to +85°C
Junction Temperature ......................................................+150°C
Storage Temperature Range .............................-65°C to +160°C
Lead Temperature (soldering, 10s) .................................+300°C
Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional
operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to
absolute maximum rating conditions for extended periods may affect device reliability.
ELECTRICAL CHARACTERISTICS
(V IN = V SHDN = +3V, OUT = +10V, FREQ = GND, T A = 0°C to +85°C , unless otherwise noted. Typical values are at T A = +25°C.)
PARAMETER
IN Input Voltage Range
IN Quiescent Current
IN Undervoltage Lockout
LDO Output Voltage
LDO Undervoltage Lockout Voltage
OUT Supply Voltage Range
OUT Overvoltage Fault Threshold
CONDITIONS
V IN = 3V, V FB = 1.5V
IN rising, 200mV hysteresis, LX remains off below
this level
6V ≤ V OUT ≤ 13V, I LDO = 12.5mA, V FB = 1.5V (Note1)
LDO rising, 200mV hysteresis
(Note 1)
MIN
1.8
4.8
2.4
4.5
13.2
TYP
27
1.3
5.0
2.7
13.6
MAX
5.5
40
1.75
5.2
3.0
13.0
14.0
UNITS
V
μA
V
V
V
V
V
OUT Undervoltage Fault Threshold
1.4
V
OUT Supply Current
Shutdown Supply Current
(Total of IN, OUT, and SUPB)
Thermal Shutdown
V FB = 1.5V, no load
V FB = 1.1V, no load
V IN = V OUT = V SUPB = 3V
Temperature rising, 15°C hysteresis
0.5
4
4
+160
2.0
10.0
10
mA
μA
°C
STEP-UP REGULATOR
Operating Frequency
Oscillator Maximum Duty Cycle
FB Regulation Voltage
FB Fault Trip Level
Duration to Trigger Fault Condition
FB Load Regulation
FB Line Regulation
FB Input Bias Current
FB Transconductance
FB Voltage Gain
LX On-Resistance
FREQ = GND
FREQ = IN
FREQ = GND
FREQ = IN
Falling edge
FREQ = GND
FREQ = IN
0 < I LOAD < 200mA, transient only
V IN = 1.8V to 5.5V
V FB = 1.3V
? I = 5μA at COMP
FB to COMP
I LX = 200mA
512
1020
91
88
1.228
0.96
43
47
-0.15
75
600
1200
95
92
1.24
1.0
51
55
-1
-0.08
125
160
700
115
768
1380
99
96
1.252
1.04
64
65
+0.15
200
280
200
kHz
%
V
V
ms
%
%/V
nA
μS
V/V
m ?
2
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