參數(shù)資料
型號(hào)： MAX1636EAP
廠(chǎng)商： MAXIM INTEGRATED PRODUCTS INC
元件分類(lèi)： 穩(wěn)壓器
英文描述： Low-Voltage, Precision Step-Down Controller for Portable CPU Power
中文描述： 1 A SWITCHING CONTROLLER, 330 kHz SWITCHING FREQ-MAX, PDSO20
封裝： 5.30 MM, MO-150, SSOP-20
文件頁(yè)數(shù)： 1/24頁(yè)
文件大?。?/td> 219K
代理商： MAX1636EAP
_______________General Desc ription
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)
in sensitive mobile communications and pen-entry appli-
cations. Holding
SKIP
high forces fixed-frequency mode
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
package, refer to the MAX1637 data sheet.
________________________Applic ations
Notebook Computers
Subnotebook Computers
Desktop Computers
Bus-Termination Supplies
__________________Pin Configuration
____________________________Features
o
±1% DC Accuracy (Adjustable Mode)
o
Output Overvoltage Crowbar Protection
o
Output Undervoltage Shutdown
o
Adjustable Switching Frequency to 340kHz
o
Low-Dropout Operation
o
Idle Mode Pulse-Skipping Operation
o
1.10V to 5.5V Adjustable Output Voltage
o
2.5V/3.3V Dual-Mode Fixed-Output Settings
o
Internal Digital Soft-Start
o
1.1V ±1% Reference Output
o
3μA (typ) Shutdown Current
o
Open-Drain Power-Good Output (
RESET
)
o
20-Pin SSOP Package
M
Low-Voltage, Prec ision S tep-Down
Controller for Portable CPU Power
________________________________________________________________ Maxim Integrated Products
1
20
19
18
17
16
15
14
13
1
2
3
4
5
6
7
8
SKIP
LX
DH
BST
SHDN
RESET
CSL
CSH
TOP VIEW
PGND
DL
VL
V+
SYNC
REF
CC
OVP
12
11
9
10
V
CC
FB
GND
GND
MAX1636
SSOP
19-1268; Rev 0; 8/97
EVALUATION KIT
AVAILABLE
For free samples & the latest literature: http://www.maxim-ic.com, or phone 1-800-998-8800
For small orders, phone 408-737-7600 ext. 3468.
Idle Mode is a trademark of Maxim Integrated Products.
__________Typic al Operating Circ uit
______________Ordering Information
MAX1636
V+
SHDN
GND
V
IN
DL
PGND
LX
DH
VL
V
CC
BST
OVP
CSH
CSL
FB
RESET
TO
μ
P
CC
SKIP
GND
SYNC
REF
PART
MAX1636EAP
-40°C to +85°C
TEMP. RANGE
PIN-PACKAGE
20 SSOP
相關(guān)PDF資料
PDF描述
MAX1637 Miniature, Low-Voltage, Precision Step-Down Controller
MAX1637EEE Miniature, Low-Voltage, Precision Step-Down Controller
MAX1638 High-Speed Step-Down Controller with Synchronous Rectification for CPU Power
MAX1638EAG High-Speed Step-Down Controller with Synchronous Rectification for CPU Power
MAX1638EEG
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
MAX1636EAP+ 功能描述:DC/DC 開(kāi)關(guān)控制器 Precision Step-Down for Portable CPU Pwr RoHS:否 制造商:Texas Instruments 輸入電壓:6 V to 100 V 開(kāi)關(guān)頻率: 輸出電壓:1.215 V to 80 V 輸出電流:3.5 A 輸出端數(shù)量:1 最大工作溫度:+ 125 C 安裝風(fēng)格: 封裝 / 箱體:CPAK
MAX1636EAP+T 功能描述:DC/DC 開(kāi)關(guān)控制器 Precision Step-Down for Portable CPU Pwr RoHS:否 制造商:Texas Instruments 輸入電壓:6 V to 100 V 開(kāi)關(guān)頻率: 輸出電壓:1.215 V to 80 V 輸出電流:3.5 A 輸出端數(shù)量:1 最大工作溫度:+ 125 C 安裝風(fēng)格: 封裝 / 箱體:CPAK
MAX1636EAP-T 功能描述:DC/DC 開(kāi)關(guān)控制器 RoHS:否 制造商:Texas Instruments 輸入電壓:6 V to 100 V 開(kāi)關(guān)頻率: 輸出電壓:1.215 V to 80 V 輸出電流:3.5 A 輸出端數(shù)量:1 最大工作溫度:+ 125 C 安裝風(fēng)格: 封裝 / 箱體:CPAK
MAX1637EEE 功能描述:DC/DC 開(kāi)關(guān)控制器 RoHS:否 制造商:Texas Instruments 輸入電壓:6 V to 100 V 開(kāi)關(guān)頻率: 輸出電壓:1.215 V to 80 V 輸出電流:3.5 A 輸出端數(shù)量:1 最大工作溫度:+ 125 C 安裝風(fēng)格: 封裝 / 箱體:CPAK
MAX1637EEE+ 功能描述:DC/DC 開(kāi)關(guān)控制器 Mini Precision Step Down RoHS:否 制造商:Texas Instruments 輸入電壓:6 V to 100 V 開(kāi)關(guān)頻率: 輸出電壓:1.215 V to 80 V 輸出電流:3.5 A 輸出端數(shù)量:1 最大工作溫度:+ 125 C 安裝風(fēng)格: 封裝 / 箱體:CPAK
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