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| 型号： | MAX5089ATE+T |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 2/24页 |
| 文件大小： | 0K |
| 描述： | IC REG BUCK SYNC ADJ 2A 16TQFN |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 2,500 |
| 类型： | 降压（降压） |
| 输出类型： | 可调式 |
| 输出数： | 1 |
| 输出电压： | 0.6 V ~ 20 V |
| 输入电压： | 4.5 V ~ 23 V |
| PWM 型： | 电压模式 |
| 频率 - 开关： | 312kHz ~ 2.1MHz |
| 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-WQFN 裸露焊盘 |
| 包装： | 带卷 (TR) |
| 供应商设备封装： | 16-TQFN-EP（5x5） |
2.2MHz, 2A Buck Converters with an
Integrated High-Side Switch
ABSOLUTE MAXIMUM RATINGS
V+ to PGND............................................................-0.3V to +25V
BST/VDD, DRAIN to SGND ....................................-0.3V to +30V
SGND to PGND .....................................................-0.3V to +0.3V
BST/VDD to SOURCE...............................................-0.3V to +6V
SOURCE to SGND..................................................-0.6V to +25V
SOURCE or DRAIN Maximum Peak Current...............5A for 1ms
V L to SGND ................-0.3V to the lower of +6V and (V+ + 0.3V)
SYNC, EN, DL, CKO, OSC, COMP,
FB to SGND...............................................-0.3V to (V L + 0.3V)
BYPASS, CKO, OSC, COMP, FB, EN, SYNC, RESET,
RESET , PGOOD to SGND ........................................-0.3V to +6V
BYPASS to SGND..................................................-0.3V to +2.2V
V L and BYPASS Short-Circuit Duration to SGND ......Continuous
Continuous Power Dissipation* (T A = +70°C)
16-Pin TQFN (derate 33mW/°C above +70°C) ..........2666mW
Package Thermal Resistance (junction to case) ............1.7°C/W
Operating Temperature Range .........................-40°C to +125°C
Junction Temperature Range ............................-65°C to +150°C
Storage Temperature Range .............................-65°C to +150°C
Lead Temperature (soldering, 10s) .................................+300°C
PGOOD Maximum Input Current .................................±50mA
*As per JEDEC51 Standard (multilayer board).
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+ = V L = 5V or V+ = 5.5V to 23V, V EN = 5V, T A = T J = -40°C to +125°C, unless otherwise noted. Circuits of Figures 5 and 6. Typical
values are at T A = T J = +25°C.) (Note 1)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
SYSTEM SPECIFICATIONS
Input Voltage Range
V+ Operating Supply Current
V+
I Q
V+ = V L
V+ = 12V, V FB = 0.8V
R OSC = 10k ?, no switching
5.5
4.5
1.8
23.0
5.5
2.5
V
V
mA
V+ = 12V, V EN = 0V, PGOOD (MAX5089),
V+ Standby Supply Current
I STBY
RESET , CKO unconnected (MAX5088),
1
1.4
mA
R OSC = 10k ?
Nonsynchronous (MAX5088),
f SW = 1.25MHz, V+ = 12V, I OUT = 1.5A,
79
Efficiency
η
V OUT = 3.3V
%
Synchronous (MAX5089),
f SW = 300kHz, V+ = 12V, I OUT = 1.5A,
V OUT = 3.3V
V L REGULATOR (V L )/BYPASS OUTPUT (BYPASS)
90
V L Undervoltage Lockout
V L Undervoltage Lockout
Hysteresis
V UVLO
V HYST
V L falling
4.1
137
4.3
V
mV
V L Output Voltage
BYPASS Output Voltage
BYPASS Load Regulation
V L
V BYPASS
? V BYPASS
V+ = 5.5V to 23V, I VL = 0 to 40mA
V+ = V L = 5.2V
I BYPASS steps from 0 to 50μA,
V+ = V L = 5.2V
5.0
1.98
0
5.2
2
1.2
5.5
2.02
10
V
V
mV
2
_______________________________________________________________________________________
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