参数资料
型号: MAX17020ETJ+
厂商: Maxim Integrated Products
文件页数: 8/34页
文件大小: 0K
描述: IC CTLR PWM DUAL STEP DN 32-TQFN
产品培训模块: Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
标准包装: 60
系列: Quick-PWM™
应用: 电源
电流 - 电源: 1mA
电源电压: 6 V ~ 24 V
工作温度: -40°C ~ 85°C
安装类型: 表面贴装
封装/外壳: 32-WFQFN 裸露焊盘
供应商设备封装: 32-TQFN-EP(5x5)
包装: 管件
Dual Quick-PWM Step-Down Controller
with Low-Power LDO, RTC Regulator
ELECTRICAL CHARACTERISTICS (continued)
(Circuit of Figure 1, no load on LDO, RTC, OUT1, OUT2, and REF, V IN = 12V, V DD = V CC = V SECFB = 5V, V REFIN2 = 1.0V, BYP =
LDOREFIN = GND, ONLDO = IN, ON1 = ON2 = V CC , T A = -40°C to +85°C , unless otherwise noted.) (Note 3)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
LINEAR REGULATOR (LDO)
V IN = 24V, LDOREFIN = BYP = GND,
0mA < I LDO < 100mA
4.85
5.15
LDO Output-Voltage Accuracy
V LDO
V IN = 24V, LDOREFIN = V CC , BYP = GND,
0mA < I LDO < 100mA
3.20
3.40
V
V IN = 24V, BYP = GND, V LDOREFIN = 0.5V,
0mA < I LDO < 100mA
0.960
1.040
LDOREFIN Input Range
V LDOREFIN
V LDO = 2x V LDOREFIN
0.3
2.0
V
LDOREFIN low threshold
0.10
0.25
LDOREFIN Dual-Mode
Threshold Voltage
LDOREFIN high threshold
V CC -
2V
V CC -
0.9V
V
LDO Short-Circuit Current
I ILIM(LDO)
LDO = GND
260
mA
LDO Regulation Reduction/
Bypass Switchover Threshold
Falling edge of BYP
-12
-5
%
V CC Undervoltage-Lockout
Threshold
V UVLO(VCC)
Falling edge of V CC ,
PWM disabled below this threshold
3.8
4.3
V
3.3V ALWAYS-ON LINEAR REGULATOR (RTC)
RTC Output-Voltage Accuracy
RTC Short-Circuit Current
V RTC
I ILIM(RTC)
ON1 = ON2 = GND, V IN = 6V to 24V,
0 < I RTC < 5mA
ON1 = ON2 = ONLDO = GND,
V IN = 6V to 24V, 0 < I RTC < 5mA
RTC = GND
3.18
3.16
5
3.45
3.50
30
V
mA
REFERENCE (REF)
Reference Voltage
Reference Load-Regulation Error
V REF
V REF
V CC = 4.5V to 5.5V, I REF = 0
I REF = -20μA to 50μA
1.975
-10
2.025
+10
V
mV
OUT1 FAULT DETECTION
OUT1 Overvoltage Trip
Threshold
OUT1 Undervoltage-Protection
Trip Threshold
PGOOD1 Lower Trip Threshold
PGOOD1 Output-Low Voltage
V OVP(OUT1) With respect to error-comparator threshold
V UVP(OUT1) With respect to error-comparator threshold
With respect to error-comparator threshold,
falling edge, hysteresis = 1%
V FB1 = 0.56V (PGOOD1 low impedance),
I SINK = 4mA
12
63
-20
20
77
-12
0.4
%
%
%
V
OUT2 FAULT DETECTION
OUT2 Overvoltage Trip
Threshold
Preset mode (REFIN2 = RTC or V CC ): with
V OVP(OUT2) respect to error-comparator threshold
Tracking mode: with respect to REFIN2 voltage
12
160
20
240
%
mV
8
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