参数资料
型号: MAX1790EUA+T
厂商: Maxim Integrated Products
文件页数: 3/14页
文件大小: 0K
描述: IC REG BOOST ADJ 0.8A 8UMAX
产品培训模块: Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
标准包装: 2,500
类型: 升压(升压)
输出类型: 可调式
输出数: 1
输出电压: 2.6 V ~ 12 V
输入电压: 2.6 V ~ 5.5 V
PWM 型: 电流模式
频率 - 开关: 640kHz, 1.22MHz
电流 - 输出: 1.2A
同步整流器:
工作温度: -40°C ~ 85°C
安装类型: 表面贴装
封装/外壳: 8-TSSOP,8-MSOP(0.118",3.00mm 宽)
包装: 带卷 (TR)
供应商设备封装: 8-uMAX
Low-Noise Step-Up DC-DC Converters
ELECTRICAL CHARACTERISTICS (continued)
(V IN = SHDN = 3V, FREQ = GND, T A = 0°C to +85°C , unless otherwise noted. Typical values are at T A = +25°C.)
PARAMETER
Current-Sense Transresistance
SYMBOL
R CS
MAX1790
MAX8715
CONDITIONS
MIN
0.30
0.20
TYP
0.45
0.30
MAX
0.65
0.43
UNITS
V/A
SOFT-START
Reset Switch Resistance
100
Ω
Charge Current
V SS = 1.2V
1.5
4
7.0
μA
CONTROL INPUTS
Input Low Voltage
Input High Voltage
Hysteresis
V IL
V IH
SHDN , FREQ
SHDN , FREQ
SHDN , FREQ
0.7 x V IN
0.3 x V IN
0.1 x V IN
V
V
V
FREQ Pulldown Current
SHDN Input Current
I FREQ
I SHDN
1.8
5
0.001
9.0
1
μA
μA
ELECTRICAL CHARACTERISTICS
(V IN = SHDN = 3V, FREQ = GND, T A = -40°C to +85°C , unless otherwise noted.) (Note 2)
PARAMETER
Input Supply Range
V IN Undervoltage Lockout
Quiescent Current
Shutdown Supply Current
SYMBOL
V IN
UVLO
I IN
I IN
CONDITIONS
V IN rising, typical hysteresis is 40mV,
LX remains off below this level
V FB = 1.3V, not switching
MAX1790
V FB = 1.0V, switching
V FB = 1.3V, not switching
MAX8715
V FB = 1.0V, switching
SHDN = GND
MIN
2.6
2.25
TYP
MAX
5.5
2.52
0.35
5
0.35
5
10
UNITS
V
V
mA
μA
ERROR AMPLIFIER
Feedback Voltage
FB Input Bias Current
V FB
I FB
Level to produce V COMP = 1.24V
MAX1790
V FB = 1.24V
MAX8715
1.215
1.24
1.260
40
190
V
nA
Feedback-Voltage Line
Regulation
Level to produce V COMP = 1.24V,
2.6V < V IN < 5.5V
0.15
%/V
Transconductance
g m
Δ I = 5μA
MAX1790
MAX8715
70
70
260
260
μS
OSCILLATOR
Frequency
Maximum Duty Cycle
f OSC
DC
FREQ = GND
FREQ = IN
FREQ = GND
490
900
78
770
1500
92
kHz
%
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3
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