參數(shù)資料
型號： MAX1715
廠商： Maxim Integrated Products, Inc.
英文描述： Ultra-High Efficiency, Dual Step-Down Controller for Notebook Computers
中文描述： 超高效率、雙路降壓型控制器，用于筆記本電腦
文件頁數(shù)： 8/28頁
文件大?。?/td> 308K
代理商： MAX1715
170
M
Ultra-High Efficiency, Dual Step-Down
Controller for Notebook Computers
8
_______________________________________________________________________________________
Pin Description
OUT1 ON/
OFF
Control Input. Drive to AGND to turn OUT1 off. Drive to V
CC
to turn OUT1 on.
ON1
10
Feedback Input for OUT1. Connect to AGND for 1.8V fixed output or to V
CC
for 3.3V fixed output, or connect
to a resistor-divider from OUT1 for an adjustable output.
FB1
2
+2.0V Reference Voltage Connection. Bypass to AGND with 0.22μF (min) capacitor. Can supply 50μA for
external loads.
REF
9
Output Voltage Connection for the OUT1 PWM. Connect directly to the junction of the external inductor and
output filter capacitors. OUT1 senses the output voltage to determine the on-time and also serves as the
feedback input in fixed-output modes.
OUT1
1
Pulse-Skipping Control Input. Connect to V
CC
for low-noise forced-PWM mode. Connect to AGND to enable
pulse-skipping operation.
SKIP
6
Power-Good Open-Drain Output. PGOOD is low when either FB_ input is more than 5.5% below the normal
regulation point (typ).
PGOOD
7
Analog Ground
AGND
8
Current-Limit Threshold Adjustment for OUT1. The LX1-PGND current-limit threshold defaults to +100mV if
ILIM1 is connected to V
CC
. Or, connect an external resistor to AGND to adjust the limit. A precision 5μA pull-up
current through R
EXT
sets the threshold from 50mV to 200mV. The voltage on the pin is 10 times the current-
limit voltage. Choose R
EXT
equal to 2k
per mV of current-limit threshold (100k
to 400k
).
ILIM1
3
Battery Voltage Sense Connection. Connect to the input power source. V+ is used only to set the PWM one-
shot timing.
V+
4
PIN
On-Time Selection Control Input. This is a four-level input used to determine DH_ on-time. The TON table
below is for V
IN
= 24V, V
OUT1
= 1.8V, V
OUT2
= 2.5V condition.
TON
5
FUNCTION
NAME
OUT2 ON/
OFF
Control Input. Drive to AGND to turn OUT2 off. Drive to V
CC
to turn OUT2 on.
ON2
11
Current-Limit Threshold Adjustment for OUT2. The LX2-PGND current-limit threshold defaults to +100mV if
ILIM2 is connected to V
CC
. Or, connect an external resistor to AGND to adjust the limit. A precision 5μA pull-up
current through R
EXT
sets the threshold from 50mV to 200mV. The voltage on the pin is 10 times the current-
limit voltage. Choose R
EXT
equal to 2k
per mV of current-limit threshold (100k
to 400k
).
ILIM2
12
Feedback Input for OUT2. Connect to AGND for 2.5V fixed output, or connect to a resistor-divider from
OUT2 for an adjustable output.
FB2
13
Output Voltage Connection for the OUT2 PWM. Connect directly to the junction of the external inductor and
output filter capacitors. OUT2 senses the output voltage to determine the on-time and also serves as the
feedback input in fixed-output mode.
OUT2
14
No Connection. These pins are not connected to any internal circuitry. Connect the N.C. pins to the ground
plane to enhance thermal conductivity.
N.C.
15, 23,
28
AGND
REF
TON
Open
V
CC
235
345
485
620
Frequency (OUT1) (kHz)
Frequency (OUT2) (kHz)
460
355
255
170
相關(guān)PDF資料
PDF描述
MAX1715EEI Ultra-High Efficiency, Dual Step-Down Controller for Notebook Computers
MAX1717 Replaced by TMS320VC5506 : Digital Signal Processors 132-BQFP
MAX1717EEG Replaced by TMS320VC5506 : Digital Signal Processors 100-LQFP
MAX1718EEI Notebook CPU Step-Down Controller for Intel Mobile Voltage Positioning IMVP-II
MAX1718 Replaced by TMS320VC5506 : Digital Signal Processors 100-LQFP -40 to 85
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
MAX1715EEI 功能描述:DC/DC 開關(guān)控制器 RoHS:否 制造商:Texas Instruments 輸入電壓:6 V to 100 V 開關(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
MAX1715EEI+ 功能描述:DC/DC 開關(guān)控制器 Dual Step-Down Controller RoHS:否 制造商:Texas Instruments 輸入電壓:6 V to 100 V 開關(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
MAX1715EEI+T 功能描述:DC/DC 開關(guān)控制器 Dual Step-Down Controller RoHS:否 制造商:Texas Instruments 輸入電壓:6 V to 100 V 開關(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
MAX1715EEI-T 功能描述:DC/DC 開關(guān)控制器 RoHS:否 制造商:Texas Instruments 輸入電壓:6 V to 100 V 開關(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
MAX1715EVKIT 功能描述:DC/DC 開關(guān)控制器 Evaluation Kit for the MAX1715 RoHS:否 制造商:Texas Instruments 輸入電壓:6 V to 100 V 開關(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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