参数资料
型号: MAX16974AUE/V+
厂商: Maxim Integrated Products
文件页数: 4/19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:
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
ELECTRICAL_CHARACTERISTICS_(continued)
(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
CRES Source Current
CRES Pulldown Current
SYMBOL
I CRES
I CRES_PD
CONDITIONS
V OUT in regulation
V OUT out of regulation
MIN
9.5
1
TYP
10
MAX
10.5
UNITS
F A
mA
RES Sink Current
RES Leakage Current (Open-
Drain Output)
V RES pulls low, V RES > 0.4V
V OUT in regulation, T A = +25 N C
1
1
mA
F A
Reset Debounce Time
t RES_DEB
V RESETI falling
25
F s
Note_2: Guaranteed by design; not production tested.
Typical Operating Characteristics
(V SUP = V SUPSW = 14V, V OUT = 5V, FSYNC = GND, f OSC = 400kHz, T A = +25 N C, unless otherwise noted. See Figure 1.)
EFFICIENCY vs. I LOAD
(SKIP MODE)
EFFICIENCY vs. I LOAD
SUPPLY CURRENT vs. SUPPLY VOLTAGE
100
90
V SUP = 14V
5V/400kHz
100
90
V SUP = 14V
100
90
80
80
80
70
70
5V/400kHz
70
60
50
40
30
20
10
5V/2.2MHz
60
50
40
30
20
10
5V/2.2MHz
60
50
40
30
20
10
5V/400kHz
5V/2.2MHz
0
0.00001
0.0001
0.001
0.01
0.1
0
0.01
0.1
1
10
0
6
8 10 12 14 16 18 20 22 24 26 28
I LOAD (C)
14
13
12
11
10
9
8
7
SHUTDOWN CURRENT
vs. INPUT VOLTAGE
T A = +125°C
I LOAD (A)
V SUP
SUPPLY VOLTAGE (V)
STARTUP INTO HEAVY LOAD
MAX16974 toc05
5V/div
0V
5V/div
6
5
4
3
T A = +25°C
V OUT
0V
2A/div
2
1
T A = -40°C
I LOAD
SF = 400kHz
0A
0
4
6
8 10 12 14 16 18 20 22 24 26 28
10ms/div
INPUT VOLTAGE (V)
4_ _ _______________________________________________________________________________________
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