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| 型号： | MAX16922AUPG/V+T |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 2/17页 |
| 文件大小： | 0K |
| 描述： | IC DCDC CONV STPDN LDO 20TSSOP |
| 其它有关文件： | Automotive Product Guide |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 2,500 |
| 应用： | 车载系统 |
| 电源电压： | 3.7 V ~ 28 V |
| 工作温度： | -40°C ~ 125°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 20-TSSOP（0.173"，4.40mm 宽）裸露焊盘 |
| 供应商设备封装： | 20-TSSOP-EP |
| 包装： | 带卷 (TR) |
MAX16922
2.2MHz, Dual, Step-Down DC-DC
Converters, Dual LDOs, and RESET
ABSOLUTE MAXIMUM RATINGS
PV1, EN to GND .....................................................-0.3V to +45V
LX1 to GND.................................................-0.5V to (PV1 + 0.3V)
LX2 to GND.................................................-0.5V to (PV2 + 0.3V)
BST to LX1.............................................................-0.3V to +6.0V
PV2, PV3, PV4, OUTS1, PWM, RESET to GND_....-0.3V to +6.0V
OUTS2 .......................................................-0.3V to (PV2 + 0.3V)
OUT3 .........................................................-0.3V to (PV3 + 0.3V)
OUT4 .........................................................-0.3V to (PV4 + 0.3V)
LX1 RMS Current .................................................................2.0A
LX2 RMS Current .................................................................1.2A
PGND2 to GND_....................................................-0.3V to +0.3V
LSUP to GND............................................................-0.3V to +6V
Continuous Power Dissipation (T A = +70°C)
TQFN (derate 31.3 mW/°C above +70°C) ........................ 2500mW
TSSOP (derate 26.5 mW/°C above +70°C) ...................... 2122mW
ESD HB (all pins) ...................................................................±2kV
ESD MM (all pins) ................................................................±200V
ESD CDM (corner pins) .......................................................±750V
ESD CDM (other pins)..........................................................±500V
Operating Temperature Range .........................-40°C to +125°C
Junction Temperature ......................................................+150°C
Storage Temperature Range .............................-65°C to +150°C
Lead Temperature (soldering, 10s) .................................+300°C
Soldering Temperature (reflow) .......................................+260°C
OUTS_, OUT_ Output Short-Circuit Duration .............Continuous
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.
PACKAGE THERMAL CHARACTERISTICS (Note 1)
TQFN
Junction-to-Ambient Thermal Resistance ( θ JA ) ........... 32°C/W
Junction-to-Case Thermal Resistance ( θ JC ) ............... 2.7°C/W
TSSOP
Junction-to-Ambient Thermal Resistance ( θ JA ) ........ 37.7°C/W
Junction-to-Case Thermal Resistance ( θ JC ) .................. 2°C/W
Note 1: Package thermal resistances were obtained using the method described in JEDEC specification JESD51-7, using a four-layer
board. For detailed information on package thermal considerations, refer to www.maximintegrated.com/thermal-tutorial .
ELECTRICAL CHARACTERISTICS
(V PV1 = 13.5V, V PV2 = V PV3 = V OUT1 , V PV4 = V OUT2 ; T A = T J = -40°C to +125°C, unless otherwise noted. Typical values are at
T A = +25°C under normal conditions, unless otherwise noted.) (Note 2)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
OUT1—SYNCHRONOUS STEP-DOWN DC-DC CONVERTER
Supply-Voltage Range
V PV1
(Note 3)
Operation < 500ms
3.7
28
45
V
PV1 Undervoltage Lockout
BST Refresh Load Enable
V UVLO,R
V UVLO,F
V BRLE
PV1 rising
PV1 falling
PV1 falling (option enabled)
2.85
3.7
3.3
6.45
4.0
V
V
BST Refresh Load Hysteresis
0.65
V
LSUP Regulator Voltage
V LSUP
6V
V PV1
28V
4.75
5.0
5.45
V
Supply Current
I PV1
EN = low
14
μA
PWM Switching Frequency
Voltage Accuracy
f SW
V OUT1
Internally generated
Duty cycle = 20% to 90%;
I LOAD = 300mA to 1.2A
2.0
-3
2.2
2.4
+3
MHz
%
SKIP mode (Note 4)
-2
+4
DMOS On-Resistance
Current-Limit Threshold
Soft-Start Ramp Time
V PV1 = 4V, V BST = 9V, I LX1 = 0.2A
1.4
300
1.75
2.2
700
2.1
m
A
ms
2
Maxim Integrated
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