参数资料
型号: MAX8792ETD+T
厂商: Maxim Integrated Products
文件页数: 6/28页
文件大小: 0K
描述: IC PWM CTRLR STEP-DWN 14TDFN
产品培训模块: Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
标准包装: 1
应用: PWM 控制器
输入电压: 2 V ~ 26 V
电源电压: 4.5 V ~ 5.5 V
电流 - 电源: 700µA
工作温度: -40°C ~ 85°C
安装类型: 表面贴装
封装/外壳: 14-WFDFN 裸露焊盘
供应商设备封装: 14-TDFN-EP(3x3)
包装: 标准包装
其它名称: MAX8792ETD+TDKR
Single Quick-PWM Step-Down
Controller with Dynamic REFIN
ELECTRICAL CHARACTERISTICS (continued)
(Circuit of Figure 1, V IN = 12V, V DD = V CC = V EN = 5V, REFIN = ILIM = REF, SKIP = GND. T A = -40°C to +85°C , unless otherwise
specified.) (Note 1)
PARAMETER
SYMBOL
CONDITIONS
MIN
MAX
UNITS
INPUTS AND OUTPUTS
EN Logic-Input Threshold
V EN
EN rising edge; hysteresis = 450mV (typ)
1.20
2.20
V
High (5V V DD )
V CC -
0.4
SKIP Quad-Level Input Logic
Levels
V SKIP
Mid (3.3V)
3.0
3.6
V
Ref (2.0V)
Low (GND)
1.7
2.3
0.4
Note 1: Limits are 100% production tested at T A = +25°C. Maximum and minimum limits over temperature are guaranteed by
design and characterization.
Note 2: The 0 to 0.5V range is guaranteed by design, not production tested.
Note 3: On-time and off-time specifications are measured from 50% point to 50% point at the DH pin with LX = GND, V BST = 5V,
and a 250pF capacitor connected from DH to LX. Actual in-circuit times can differ due to MOSFET switching speeds.
Typical Operating Characteristics
(MAX8792 Circuit of Figure 1, V IN = 12V, V DD = 5V, SKIP = GND, R TON = 200k Ω , T A = +25°C, unless otherwise noted.)
100
90
1.5V OUTPUT EFFICIENCY
vs. LOAD CURRENT
7V
100
90
1.5V OUTPUT EFFICIENCY
vs. LOAD CURRENT
SKIP MODE
1.54
1.5V OUTPUT VOLTAGE
vs. LOAD CURRENT
80
12V
80
LOW-NOISE
70
70
1.52
MODE
20V
60
60
SKIP MODE
50
40
50
40
LOW-NOISE
MODE
PWM MODE
1.50
PWM MODE
30
SKIP MODE
PWM MODE
30
20
20
1.48
0.01
0.1
1
10
0.01
0.1
1
10
0
2
4
6
8
10
LOAD CURRENT (A)
LOAD CURRENT (A)
LOAD CURRENT (A)
6
_______________________________________________________________________________________
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