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參數(shù)資料
| 型號(hào)： | MAX1703 |
| 廠商： | Maxim Integrated Products, Inc. |
| 元件分類： | DC/DC變換器 |
| 英文描述： | 1-Cell to 3-Cell, High-Power 1.5A, Low-Noise, Step-Up DC-DC Converter |
| 中文描述： | 1節(jié)至3節(jié)電池、大功率(1.5A)、低噪聲、升壓型DC-DC轉(zhuǎn)換器 |
| 文件頁數(shù)： | 7/16頁 |
| 文件大?。?/td> | 273K |
| 代理商： | MAX1703 |
M
1-Cell to 3-Cell, High-Power (1.5A),
Low-Noise, Step-Up DC-DC Converter
_______________________________________________________________________________________
7
Pin Description
_________________________________Typical Operating Characteristics (continued)
(V
IN
= +3.6V, V
OUT
= 5V, T
A
= +25°C, unless otherwise noted.)
1ms/div
V
IN
= 3.6V, V
OUT
= 5V, C
OUT
= 470
μ
F,
PULSE WIDTH = 577
μ
s, LOAD CURRENT = 100mA TO 1A
V
OUT
(100mV/div)
I
LOAD
(0.5A/div)
GSM LOAD-TRANSIENT RESPONSE
MAX1703-12
2ms/div
V
IN
= 1.2V, V
OUT
= 3.3V, C
OUT
= 470
μ
F,
PULSE WIDTH = 416
μ
s, LOAD CURRENT = 50mA TO 400mA
V
OUT
(100mV/div)
I
LOAD
(0.2A/div)
DECT LOAD-TRANSIENT RESPONSE
MAX1703-13
PIN
1
Dual-Mode Feedback Input. Connect FB to ground to set a fixed output voltage of +5V. Connect a
divider between the output voltage and GND to set the output voltage from 2.5V to 5.5V.
Power-Good Comparator Input. Threshold is 1.250V, with 1% hysteresis on the threshold’s rising edge.
FB
2
Reference Output. Bypass with a 0.22μF bypass capacitor to GND.
REF
FUNCTION
NAME
DC-DC Converter Output. Power source for the IC.
Ground
OUT
GND
4
5
POKIN
3
Power-Good Comparator Output. This open-drain N-channel output is low when V
POKIN
< 1.250V.
Switch-Mode Selection and External-Clock Synchronization Input:
CLK/SEL = Low: Low-power, low-quiescent-current PFM mode. Delivers up to 10% of full load current.
CLK/SEL = High: High-power PWM mode. Full output power available. Operates in low-noise, constant-
frequency mode.
CLK/SEL = External Clock: High-power PWM mode with the internal oscillator synchronized to the exter-
nal CLK
Turning on with CLK/SEL = 0V also serves as a soft-start function, since peak inductor current is limited to
25% of that allowed in PWM mode.
POK
8
Gain-Block Output. This open-drain output sinks current when V
AIN
< V
REF
.
AO
7
Gain-Block Input. When AIN is low, AO sinks current. The nominal transconductance from AIN to AO is
10mmhos.
AIN
6
Source of P-Channel Synchronous Rectifier MOSFET Switch. Connect an external Schottky diode from LXN
and LXP to POUT.
Drain of P-Channel Synchronous Rectifier. Connect LXP to LXN.
POUT
13, 15
Source of N-Channel Power MOSFET Switch
Drain of N-Channel Power Switch. Connect LXP to LXN.
PGND
LXN
10, 12
11
On/Off Input. When
ON
is low, the IC turns on.
ON
16
CLK/SEL
9
Dual Mode is a trademark of Maxim Integrated Products.
LXP
14
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MAX17030EVKIT+ | 功能描述:電源管理IC開發(fā)工具 MAX17030 Eval Kit RoHS:否 制造商:Maxim Integrated 產(chǎn)品:Evaluation Kits 類型:Battery Management 工具用于評(píng)估:MAX17710GB 輸入電壓: 輸出電壓:1.8 V |
| MAX17030GTL+ | 功能描述:電壓模式 PWM 控制器 1/2/3-Phase PWM IMVP-6.5 VID Ctlr RoHS:否 制造商:Texas Instruments 輸出端數(shù)量:1 拓?fù)浣Y(jié)構(gòu):Buck 輸出電壓:34 V 輸出電流: 開關(guān)頻率: 工作電源電壓:4.5 V to 5.5 V 電源電流:600 uA 最大工作溫度:+ 125 C 最小工作溫度:- 40 C 封裝 / 箱體:WSON-8 封裝:Reel |
| MAX17030GTL+T | 功能描述:電壓模式 PWM 控制器 1/2/3-Phase PWM IMVP-6.5 VID Ctlr RoHS:否 制造商:Texas Instruments 輸出端數(shù)量:1 拓?fù)浣Y(jié)構(gòu):Buck 輸出電壓:34 V 輸出電流: 開關(guān)頻率: 工作電源電壓:4.5 V to 5.5 V 電源電流:600 uA 最大工作溫度:+ 125 C 最小工作溫度:- 40 C 封裝 / 箱體:WSON-8 封裝:Reel |
| MAX17031ETG+ | 功能描述:電壓模式 PWM 控制器 Dual PWM Step-Down Controller RoHS:否 制造商:Texas Instruments 輸出端數(shù)量:1 拓?fù)浣Y(jié)構(gòu):Buck 輸出電壓:34 V 輸出電流: 開關(guān)頻率: 工作電源電壓:4.5 V to 5.5 V 電源電流:600 uA 最大工作溫度:+ 125 C 最小工作溫度:- 40 C 封裝 / 箱體:WSON-8 封裝:Reel |
| MAX17031ETG+T | 功能描述:電壓模式 PWM 控制器 Dual PWM Step-Down Controller RoHS:否 制造商:Texas Instruments 輸出端數(shù)量:1 拓?fù)浣Y(jié)構(gòu):Buck 輸出電壓:34 V 輸出電流: 開關(guān)頻率: 工作電源電壓:4.5 V to 5.5 V 電源電流:600 uA 最大工作溫度:+ 125 C 最小工作溫度:- 40 C 封裝 / 箱體:WSON-8 封裝:Reel |
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