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参数资料
| 型号： | MAX1636EAP+T |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 1/23页 |
| 文件大小： | 0K |
| 描述： | IC REG CTRLR BUCK PWM CM 20-SSOP |
| 标准包装： | 2,000 |
| PWM 型： | 电流模式，混合 |
| 输出数： | 1 |
| 频率 - 最大： | 330kHz |
| 占空比： | 99% |
| 电源电压： | 3.15 V ~ 30 V |
| 降压： | 是 |
| 升压： | 无 |
| 回扫： | 无 |
| 反相： | 无 |
| 倍增器： | 无 |
| 除法器： | 无 |
| Cuk： | 无 |
| 隔离： | 无 |
| 工作温度： | -40°C ~ 85°C |
| 封装/外壳： | 20-SSOP（0.209"，5.30mm 宽） |
| 包装： | 带卷 (TR) |
19-1268; Rev 3; 8/05
ATION
EVALU
AVAILA
KIT
B LE
Low-Voltage, Precision Step-Down
Controller for Portable CPU Power
General Description
The MAX1636 is a synchronous, buck, switch-mode,
power-supply controller that generates the CPU supply
voltage in battery-powered systems. It achieves ±1%
output voltage accuracy and offers the excellent load-
transient response needed by upcoming generations of
dynamic-clock CPUs.
Up to 95% efficiency is achieved through synchronous
rectification and Maxim’s proprietary Idle Mode? con-
trol scheme. Efficiency is greater than 80% over a
1000:1 load-current range, extending battery life in sys-
tem-suspend or standby modes. Excellent dynamic
response corrects output load transients caused by the
latest dynamic-clock CPUs within five 300kHz clock
cycles. Strong, 1A, on-board gate drivers ensure fast,
external N-channel MOSFET switching.
The MAX1636 features a logic-controlled and synchro-
nizable, fixed-frequency, pulse-width-modulation (PWM)
operating mode that reduces noise and RF interference
in sensitive mobile communications and pen-entry appli-
cations. Holding SKIP high forces fixed-frequency mode
Features
? ±1% DC Accuracy (Adjustable Mode)
? Output Overvoltage Crowbar Protection
? Output Undervoltage Shutdown
? Adjustable Switching Frequency to 340kHz
? Low-Dropout Operation
? Idle Mode Pulse-Skipping Operation
? 1.10V to 5.5V Adjustable Output Voltage
? 2.5V/3.3V Dual-Mode Fixed-Output Settings
? Internal Digital Soft-Start
? 1.1V ±1% Reference Output
? 3μA (typ) Shutdown Current
? Open-Drain Power-Good Output ( RESET )
? 20-Pin SSOP Package
Ordering Information
for lowest noise under all load conditions.
For a low-cost version that omits the +5V VL linear-
regulator block and comes in a smaller 16-pin QSOP
PART
MAX1636EAP
MAX1636EAP+
TEMP RANGE
-40°C to +85°C
-40°C to +85°C
PIN-PACKAGE
20 SSOP
20 SSOP
package, refer to the MAX1637 data sheet.
Applications
Notebook Computers
Subnotebook Computers
Desktop Computers
+ Denotes lead-free package.
Typical Operating Circuit
V IN
Bus-Termination Supplies
Pin Configuration
V+
SHDN
OVP
VL
V CC
TOP VIEW
CSH 1
CSL 2
RESET 3
20 SKIP
19 LX
18 DH
CC
DH
BST
LX
SHDN 4
OVP 5
MAX1636
17 BST
16 PGND
MAX1636
DL
CC 6
REF 7
SYNC 8
GND 9
GND 10
15 DL
14 VL
13 V+
12 V CC
11 FB
SKIP
SYNC
GND
REF
PGND
CSH
CSL
FB
SSOP
GND
RESET
TO μ P
Idle Mode is a trademark of Maxim Integrated Products.
________________________________________________________________ Maxim Integrated Products
1
For price, delivery, and to place orders, please contact Maxim Distribution at 1-888-629-4642,
or visit Maxim’s website at www.maxim-ic.com.
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX1637EEE | 功能描述:DC/DC 开关控制器 RoHS:否 制造商:Texas Instruments 输入电压:6 V to 100 V 开关频率: 输出电压:1.215 V to 80 V 输出电流:3.5 A 输出端数量:1 最大工作温度:+ 125 C 安装风格: 封装 / 箱体:CPAK |
| MAX1637EEE+ | 功能描述:DC/DC 开关控制器 Mini Precision Step Down RoHS:否 制造商:Texas Instruments 输入电压:6 V to 100 V 开关频率: 输出电压:1.215 V to 80 V 输出电流:3.5 A 输出端数量:1 最大工作温度:+ 125 C 安装风格: 封装 / 箱体:CPAK |
| MAX1637EEE+T | 功能描述:DC/DC 开关控制器 Mini Precision Step Down RoHS:否 制造商:Texas Instruments 输入电压:6 V to 100 V 开关频率: 输出电压:1.215 V to 80 V 输出电流:3.5 A 输出端数量:1 最大工作温度:+ 125 C 安装风格: 封装 / 箱体:CPAK |
| MAX1637EEE-T | 功能描述:DC/DC 开关控制器 RoHS:否 制造商:Texas Instruments 输入电压:6 V to 100 V 开关频率: 输出电压:1.215 V to 80 V 输出电流:3.5 A 输出端数量:1 最大工作温度:+ 125 C 安装风格: 封装 / 箱体:CPAK |
| MAX1637EVKIT | 制造商:Maxim Integrated Products 功能描述:MINIATURE, LOW-VOLTAGE, PRECISION STEP-DOWN C - Bulk |
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