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参数资料
| 型号： | MAX16977SAUE/V+T |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 1/18页 |
| 文件大小： | 0K |
| 描述： | IC BUCK SYNC ADJ 2A 16TSSOP |
| 标准包装： | 2,500 |
| 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： | * |
EVALUATION KIT AVAILABLE
MAX16977
36V, 2A, 2.2MHz Step-Down Converter
with Low Operating Current
General Description
The MAX16977 is a 2A, current-mode, step-down con-
verter with an integrated high-side switch. The device is
designed to operate with input voltages from 3.5V to 36V
while using only 30 F A quiescent current at no load. The
switching frequency is adjustable from 1MHz to 2.2MHz
by an external resistor and can be synchronized to an
external clock. The output voltage is pin selectable to
be 5V fixed or adjustable from 1V to 10V. The wide input
voltage range along with its ability to operate at high duty
cycle during undervoltage transients make the device
ideal for automotive and industrial applications.
The device operates in skip mode for reduced current
consumption in light-load applications. Protection features
include overcurrent limit, overvoltage, and thermal shut-
down with automatic recovery. The device also features
a power-good monitor to ease power-supply sequencing.
The device operates over the -40 N C to +125 N C automo-
tive temperature range, and is available in 16-pin TSSOP
and TQFN (5mm x 5mm) packages with exposed pads.
Applications
Automotive
Industrial/Military
High-Voltage Input DC-DC Converters
Point-of-Load Applications
V BAT
Features
S Wide 3.5V to 36V Input Voltage Range
S 42V Input Transients Tolerance
S High Duty Cycle During Undervoltage Transients
S 5V Fixed or 1V to 10V Adjustable Output Voltage
S Integrated 2A Internal High-Side (70m I typ)
Switch
S Fast Load-Transient Response and Current-Mode
Architecture
S Adjustable Switching Frequency (1MHz to 2.2MHz)
S Frequency Synchronization Input
S 30μA Standby Mode Operating Current
S 5μA Typical Shutdown Current
S Spread Spectrum (Optional)
S Overvoltage, Undervoltage, Overtemperature, and
Short-Circuit Protections
Ordering Information appears at end of data sheet.
For related parts and recommended products to use with this part,
refer to: www.maximintegrated.com/MAX16977.related
Typical Application Circuit
C COMP1
2.2nF
R COMP
20k I
C IN1
47μF
C COMP2
12pF
C IN2
4.7μF
R FOSC
12k I
SUP
EN
FSYNC
COMP
FOSC
MAX16977
SUPSW
BST
LX
OUT
FB
C BST
0.1μF
V OUT
V BIAS
L1
2.2μH
D1
V BIAS
R PGOOD
10k I
V OUT
5V AT 2A
C OUT
22μF
C BIAS
1μF
BIAS
GND
PGOOD
POWER GOOD
For pricing, delivery, and ordering information, please contact Maxim Direct
at 1-888-629-4642, or visit Maxim’s website at www.maximintegrated.com.
19-5844; Rev 2; 8/13
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相关代理商/技术参数 |
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