参数资料
型号: MAX17020ETJ+
厂商: Maxim Integrated Products
文件页数: 2/34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
ABSOLUTE MAXIMUM RATINGS
IN, ONLDO to GND ................................................-0.3V to +28V
V DD , V CC to GND .....................................................-0.3V to +6V
RTC, LDO to GND ....................................................-0.3V to +6V
OUT_ to GND ...........................................................-0.3V to +6V
ON1, ON2 to GND....................................................-0.3V to +6V
PGOOD_ to GND........................................-0.3V to (V CC + 0.3V)
REF, ILIM_, TON, SKIP to GND ..................-0.3V to (V CC + 0.3V)
FB1, REFIN2, LDOREFIN to GND ............................-0.3V to +6V
SECFB to GND .........................................................-0.3V to +6V
BYP to GND..............................................-0.3V to (V LDO + 0.3V)
GND to PGND .......................................................-0.3V to +0.3V
DL_ to PGND ..............................................-0.3V to (V DD + 0.3V)
BST_ to GND ..........................................................-0.3V to +34V
BST_ to V DD ............................................................-0.3V to +28V
DH1 to LX1 ..............................................-0.3V to (V BST1 + 0.3V)
BST1 to LX1..............................................................-0.3V to +6V
DH2 to LX2 ..............................................-0.3V to (V BST2 + 0.3V)
BST2 to LX2..............................................................-0.3V to +6V
LDO, RTC, REF Short Circuit to GND.........................Momentary
RTC Current Continuous.....................................................+5mA
LDO Current (Internal Regulator)
Continuous..................................................................+100mA
LDO Current (Switched Over) Continuous .....................+200mA
Continuous Power Dissipation (T A = +70°C)
32-Pin 5mm x 5mm TQFN
(derate 34.5mW/°C above +70°C) .................................2.76W
Operating Temperature Range ...........................-40°C to +85°C
Junction Temperature ......................................................+150°C
Storage Temperature Range .............................-65°C to +150°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
(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 = 0°C to +85°C , unless otherwise noted. Typical values are at T A = +25°C.)
(Note 3)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
INPUT SUPPLIES
IN Standby Supply Current
IN Shutdown Supply Current
I IN(STBY)
I IN(SHDN)
V IN = 6V to 24V, ON1 = ON2 = GND,
ONLDO = V CC
V IN = 4.5V to 24V,
ON1 = ON2 = ONLDO = GND
85
50
175
70
μA
μA
ON1 = ON2 = REFIN2 = V CC ,
IN Supply Current
I IN
SKIP = FB1 = GND,
0.1
0.2
mA
V OUT2 = 3.5V, V OUT1 = 5.3V
ON1 = ON2 = REFIN2 = V CC ,
V CC Supply Current
I CC
SKIP = FB1 = GND,
1.0
1.5
mA
V OUT2 = 3.5V, V OUT1 = 5.3V
PWM CONTROLLERS
OUT1 Output Voltage Accuracy
(Note 1)
V OUT1
V FB1
5V preset output: FB1 = GND,
V IN = 12V, SKIP = V CC
1.5V preset output: FB1 = V CC (5V),
V IN = 12V, SKIP = V CC
Adjustable feedback output,
V IN = 12V, SKIP = V CC
4.95
1.485
0.693
5.00
1.50
0.700
5.05
1.515
0.707
V
OUT1 Voltage Adjust Range
Low
0.7
0.04
5.5
0.110
V
FB1 Dual-Mode? Threshold
Voltage Levels
High
V CC -
1.6V
V CC -
0.7V
V
FB1 Input Bias Current
I FB1
V FB1 = 0.8V, T A = +25°C
-0.2
+0.2
μA
Dual Mode is a trademark of Maxim Integrated Products, Inc.
2
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