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参数资料
| 型号： | MAX16977SAUE/V+ |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 9/18页 |
| 文件大小： | 0K |
| 描述： | IC BUCK SYNC ADJ 2A 16TSSOP |
| 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 ~ 36 V |
| PWM 型： | 电流模式 |
| 频率 - 开关： | 1MHz ~ 2.2MHz |
| 电流 - 输出： | 2A |
| 同步整流器： | 无 |
| 工作温度： | -40°C ~ 125°C |
| 安装类型： | * |
| 封装/外壳： | * |
| 包装： | * |
| 供应商设备封装： | * |
MAX16977
36V, 2A, 2.2MHz Step-Down Converter
with Low Operating Current
Pin Configurations
TOP VIEW
TOP VIEW
16 15 14 13 12 11 10
9
12
11
10
9
MAX16977
EN 13
I.C. 14
FSYNC 15
MAX16977
8
7
6
SUP
BST
GND
+
EP
FOSC 16
+
EP
5
BIAS
1
2
3
4
5
6
7
8
1
2
3
4
TSSOP
TQFN
(5mm × 5mm)
Pin Descriptions
TSSOP
PIN
TQFN
NAME
FUNCTION
Synchronization Input. The device synchronizes to an external signal applied to FSYNC.
1
15
FSYNC
The external clock frequency must be 10% greater than the internal clock frequency for
proper operation. Connect FSYNC to GND if the internal clock is used.
2
3
4
5
6
7
8
9
Maxim Integrated
16
1
2
3
4
5
6
7
FOSC
PGOOD
OUT
FB
COMP
BIAS
GND
BST
Resistor-Programmable Switching-Frequency Setting Control Input. Connect a resistor
from FOSC to GND to set the switching frequency.
Open-Drain, Active-Low Output. PGOOD asserts when V OUT is below the 92.5% regula-
tion point. PGOOD deasserts when V OUT is above the 95% regulation point.
Switch Regulator Output. OUT also provides power to the internal circuitry when the out-
put voltage of the converter is set between 3V and 5V during standby mode.
Feedback Input. Connect an external resistive divider from OUT to FB and GND to set
the output voltage. Connect to BIAS to set the output voltage to 5V.
Error-Amplifier Output. Connect an RC network from COMP to GND for stable operation.
See the Compensation Network section for more details.
Linear-Regulator Output. BIAS powers up the internal circuitry. Bypass with a 1 F F
capacitor to ground.
Ground
High-Side Driver Supply. Connect a 0.1 F F capacitor between LX and BST for proper
operation.
9
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