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| 型号： | MAX1685EEE+ |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 2/14页 |
| 文件大小： | 0K |
| 描述： | IC REG BUCK SYNC 3.3V/ADJ 16QSOP |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 100 |
| 类型： | 降压（降压） |
| 输出类型： | 两者兼有 |
| 输出数： | 1 |
| 输出电压： | 3.3V，1.25 V ~ 14 V |
| 输入电压： | 2.7 V ~ 14 V |
| PWM 型： | 电流模式 |
| 频率 - 开关： | 600kHz |
| 电流 - 输出： | 1A |
| 同步整流器： | 是 |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 16-SSOP（0.154"，3.90mm 宽） |
| 包装： | 管件 |
| 供应商设备封装： | 16-QSOP |
| 产品目录页面： | 1410 (CN2011-ZH PDF) |
Low-Noise, 14V Input, 1A, PWM
Step-Down Converters
ABSOLUTE MAXIMUM RATINGS
AIN to AGND ............................................................-0.3 to +15V
IN to PGND ................................................-0.3V to (V AIN + 0.3V)
LX to PGND .................................................-0.5V to (V IN + 0.3V)
PGND to AGND ..................................................................±0.3V
SHDN to AGND .........................................-0.3V to (V AIN + 0.3V)
ILIM/SS, FB, CC, BOOT, REF to AGND ....-0.3V to (V CVL + 0.3V)
CVH to IN..................................................................-6V to +0.3V
CVL, STBY , SYNC/PWM to AGND............................-0.3V to +6V
CVL Current .......................................................-1mA to +10mA
LX Peak Current (Internally Limited) .....................................2.3A
Continuous Power Dissipation (T A = +70°C)
16-Pin QSOP (derate 8.3mW/°C above +70°C)............667mW
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
Reference Current ..............................................................±1mA
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 IN = V SHDN = 6V, STBY = SYNC/PWM = CVL, V BOOT = V OUT , FB = AGND, circuit of Figure 1, T A = 0°C to +85°C , unless otherwise
noted. Typical values are at T A = +25°C.)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
Input Voltage Range
2.7
14
V
Feedback Voltage
Output Voltage (3.3V Mode)
V FB
V OUT
V FB = V OUT , I LOAD = 0 to 1A
FB = AGND, I LOAD = 0 to 1A
1.238
3.296
1.251
3.333
1.264
3.368
V
V
Output Load Regulation
Output Current Capability
V FB = V OUT , I LOAD = 0 to 1A
V IN = 5V to 14V
1
0.01
%
A
Output Adjust Range
BOOT = AGND (Note 1)
V REF
V IN
V
FB Input Current
I FB
V FB = 1.4V
-50
50
nA
On-Resistance, P-Channel
High-side switch,
I LX = 1A
V IN = 6V
V IN = 2.7V
0.24
0.34
0.5
0.8
?
On-Resistance, N-Channel
Low-side switch, V IN = 2.7V, I LX = 200mA
3
8
?
Current Limit in PWM Mode
Pulse-Skipping Current Threshold
I LIM
SYNC/PWM = low
1.2
285
1.75
380
2.3
475
A
mA
Current Limit in Low-Power
Mode
Current Limit, N-Channel
I LIMLP
STBY = low
SYNC/PWM = high
285
0.15
380
0.4
475
0.9
mA
A
Zero Crossing Threshold
SYNC/PWM = low
MAX1684
MAX1685
-10
20
50
80
100
130
mA
PWM mode,
SYNC/PWM = high,
V BOOT = 3.3V
(Note 2)
MAX1684
MAX1685
13
25
33
65
Quiescent Power Consumption
Normal mode, SYNC/PWM = low,
V BOOT = 3.3V (Note 2)
Low-power mode, STBY = low,
V BOOT = 3.3V (Note 2)
0.9
0.14
2
0.27
mW
2
_______________________________________________________________________________________
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