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参数资料
| 型号： | MAX16974AUE/V+ |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 2/19页 |
| 文件大小： | 0K |
| 描述： | IC REG BUCK SYNC 5V/ADJ 16TSSOP |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 96 |
| 类型： | 降压（降压） |
| 输出类型： | 两者兼有 |
| 输出数： | 1 |
| 输出电压： | 5V，1 V ~ 10 V |
| 输入电压： | 3.5 V ~ 28 V |
| PWM 型： | 电流模式 |
| 频率 - 开关： | 260kHz ~ 2.2MHz |
| 电流 - 输出： | 2A |
| 同步整流器： | 是 |
| 工作温度： | -40°C ~ 125°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 16-TSSOP（0.173"，4.40mm）裸露焊盘 |
| 包装： | 管件 |
| 供应商设备封装： | 16-TSSOP-EP |
High-Voltage, 2.2MHz, 2A Automotive Step-
Down Converter with Low Operating Current
ABSOLUTE_MAXIMUM_RATINGS
SUP, SUPSW, EN to GND .....................................-0.3V to +45V
SUP to SUPSW, LX ...............................................-0.3V to +0.3V
BST to GND ..........................................................-0.3V to +47V
BST to LX ...............................................................-0.3V to +6V
OUT to GND ..........................................................-0.3V to +12V
RESETI, FOSC, COMP, BIAS, FSYNC, CRES,
RES , FB to GND ..................................................-0.3V to +6V
Continuous Power Dissipation (T A = +70 N C)
TSSOP (derate 26.1mW/ N C above +70 N C) ........... 2088.8mW*
Operating Temperature Range ........................ -40 N C to +125 N C
Junction Temperature .....................................................+150 N C
Storage Temperature Range............................ -65 N C to +150 N C
Lead Temperature (soldering, 10s) ................................+300 N C
Soldering Temperature (reflow) ......................................+260 N C
Output Short-Circuit Duration ....................................Continuous
* As per JEDEC 51 standard (multilayer board).
PACKAGE_THERMAL_CHARACTERISTICS_(Note_1)
TSSOP
Junction-to-Ambient Thermal Resistance ( q JA ) ........38.3°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.maxim-ic.com/thermal-tutorial .
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
(V SUP = V SUPSW = 14V, L1 = 4.7 F H, V EN = 14V, C IN = 10 F F, C OUT = 22 F F, C BIAS = 1 F F, C BST = 0.1 F F, C CRES = 1nF, R FOSC =
12.1k I , T A = T J = -40 N C to +125 N C, unless otherwise noted. Typical values are at T A = +25 N C.)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
Supply Voltage
Supply Current
Shutdown Supply Current
V SUP
I SUP
Normal operation
Normal operation, I LOAD = 1.5A
Skip mode, no load, V OUT = 5V
V EN = 0V
3.5
2
35
5
28
3
50
10
V
mA
F A
F A
BIAS Regulator Voltage
BIAS Undervoltage Lockout
V BIAS
V UVBIAS
V SUP = V SUPSW = 6V to 42V, V OUT > 6V
V BIAS rising
4.9
2.85
5.1
3.05
5.4
3.25
V
V
BIAS Undervoltage Lockout
Hysteresis
Thermal-Shutdown Threshold
V UVBIAS_
HYS
350
175
mV
N C
OUTPUT_VOLTAGE_(OUT)
Output Voltage
V OUT
Normal operation, V FB = V BIAS , I LOAD = 2A,
T A = +25°C
Normal operation, V FB = V BIAS , I LOAD = 2A,
-40°C < T A <+125°C
4.95
4.9
5
5
5.05
5.1
V
Skip-Mode Output Voltage
Load Regulation
Line Regulation
V OUT_SKIP No load, V FB = V BIAS (Note 2)
V OUT = 5V, V FB = V BIAS ; 400mA < I LOAD < 2A
6V < V SUP < 28V
4.95
5.05
1
0.02
5.2
V
%
%/V
BST Input Current
LX Current Limit
Skip-Mode Current Threshold
I BST
I LX
I SKIP_TH
100% duty cycle, V BST - V LX = 5V
2.5
1.5
3
240
3
3.5
mA
A
mA
2_ _ _______________________________________________________________________________________
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