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| 型号： | MAX8627ETD+T |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 2/14页 |
| 文件大小： | 0K |
| 描述： | IC REG BOOST SYNC ADJ 1A 14TDFN |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 2,500 |
| 类型： | 升压（升压） |
| 输出类型： | 可调式 |
| 输出数： | 1 |
| 输出电压： | 3 V ~ 5 V |
| 输入电压： | 0.9 V ~ 5.5 V |
| PWM 型： | 电流模式 |
| 频率 - 开关： | 1MHz |
| 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： | 14-WFDFN 裸露焊盘 |
| 包装： | 带卷 (TR) |
| 供应商设备封装： | 14-TDFN-EP（3x3） |
MAX8627
Low V BATT , 20μA IQ, 1MHz Synchronous
Boost Converter with True Shutdown
ABSOLUTE MAXIMUM RATINGS
OUTS, BATT to GND ................................................-0.3V to +6V
LX Current (Note 1) ...............................................................3.5A
AGND, PG to GND ................................................-0.3V to +0.3V
POUT to OUTS ......................................................-0.3V to +0.3V
FB, ILIM, ON to
GND.....0.3V to the higher of (V OUTS + 0.3V) and (V BATT + 0.3V)
Continuous Power Dissipation (T A = +70 ° C)
14-Pin TDFN 3mm x 3mm
(derate 18.2mW/ ° C above +70 ° C) .............................1454mW
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
Note 1: LX has internal clamp diodes to the IC internal power node V PWR (where V PWR is the higher of BATT or POUT) and PG.
Applications that forward bias these diodes should take care not to exceed the device’s power-dissipation limits.
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 OUTS = V POUT = 5V, V ON = V BATT = 3.6V, V ILIM = GND, T A = -40°C to +85°C, typical values are at T A = +25 ° C, unless otherwise
noted.)
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
GENERAL
Operating Input Voltage Range
Minimum Startup Voltage
Maximum Startup Current Limit
(Note 1)
No load (Note 1)
Shutdown, ON = GND
T A = +25 ° C
T A = +85 ° C
0.9
1.2
0.5
0.1
0.2
5.5
1.5
1
V
V
A
Supply Current
No load, no switching
T A = 0 ° C to +85 ° C
T A = -40 ° C (Note 2)
20
20
30
35
μA
OSCILLATOR
No load, switching
20
Switching Frequency
Startup Switching Frequency
0.95
1.0
2.0
1.05
MHz
MHz
Maximum Duty Cycle
Output Voltage Adjust Range
82.5
3.0
87.0
5.2
%
V
FB Regulation Voltage
FB Load Regulation
FB Line Regulation
FB Input Leakage Current
ILIM Dual Mode? Threshold
Idle Mode Trip Level
No load
0A to 1A output current load step
V BATT = 2.7V to 3V, output current = 0.5A
V FB = 1.2V, T A = +25 ° C
V OUTS = V POUT = V BATT = 5.5V T A = +85 ° C
Low level
High level
(Note 3)
1.005
-50
0.45
1.015
-30
+20
-10
-10
50
1.025
+50
0.25
V
mV/A
mV
nA
V
mA
DC-DC SWITCHES
n-Channel On-Resistance
p-Channel On-Resistance
Damping Switch On-Resistance
0.15
0.15
17
0.25
0.25
30
?
?
?
n-Channel Current limit
V ILIM = 0V
V ILIM = 0.6V
3.2
3.5
1.0
3.7
A
Dual Mode is a trademark of Maxim Integrated Products, Inc.
2
Maxim Integrated
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