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| 型号： | MAX1703ESE |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 7/16页 |
| 文件大小： | 0K |
| 描述： | IC REG BOOST SYNC 5V/ADJ 16SOIC |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 50 |
| 类型： | 升压（升压） |
| 输出类型： | 两者兼有 |
| 输出数： | 1 |
| 输出电压： | 5V，2.5 V ~ 5.5 V |
| 输入电压： | 0.7 V ~ 5.5 V |
| 频率 - 开关： | 300kHz |
| 电流 - 输出： | 1.5A |
| 同步整流器： | 是 |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 16-SOIC（0.154"，3.90mm 宽） |
| 包装： | 管件 |
| 供应商设备封装： | 16-SOIC |
| 其它名称： | Q1159627 |
1-Cell to 3-Cell, High-Power (1.5A),
Low-Noise, Step-Up DC-DC Converter
_________________________________Typical Operating Characteristics (continued)
(V IN = +3.6V, V OUT = 5V, T A = +25°C, unless otherwise noted.)
GSM LOAD-TRANSIENT RESPONSE
MAX1703-12
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)
DECT LOAD-TRANSIENT RESPONSE
MAX1703-13
V OUT
(100mV/div)
I LOAD
(0.2A/div)
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
Pin Description
PIN
1
2
3
4
5
6
7
8
9
10, 12
11
13, 15
14
16
NAME
REF
FB
POKIN
OUT
GND
AIN
AO
POK
CLK/SEL
PGND
LXN
POUT
LXP
ON
FUNCTION
Reference Output. Bypass with a 0.22μF bypass capacitor to GND.
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.
DC-DC Converter Output. Power source for the IC.
Ground
Gain-Block Input. When AIN is low, AO sinks current. The nominal transconductance from AIN to AO is
10mmhos.
Gain-Block Output. This open-drain output sinks current when V AIN < V REF .
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.
Source of N-Channel Power MOSFET Switch
Drain of N-Channel Power Switch. Connect LXP to LXN.
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.
On/Off Input. When ON is low, the IC turns on.
Dual Mode is a trademark of Maxim Integrated Products.
_______________________________________________________________________________________
7
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX1703ESE+ | 功能描述:直流/直流开关转换器 1-3 Cell 1A Step-Up DC/DC Converters RoHS:否 制造商:STMicroelectronics 最大输入电压:4.5 V 开关频率:1.5 MHz 输出电压:4.6 V 输出电流:250 mA 输出端数量:2 最大工作温度:+ 85 C 安装风格:SMD/SMT |
| MAX1703ESE+T | 功能描述:直流/直流开关转换器 1-3 Cell 1A Step-Up DC/DC Converters RoHS:否 制造商:STMicroelectronics 最大输入电压:4.5 V 开关频率:1.5 MHz 输出电压:4.6 V 输出电流:250 mA 输出端数量:2 最大工作温度:+ 85 C 安装风格:SMD/SMT |
| MAX1703ESE-T | 功能描述:直流/直流开关转换器 1-3 Cell 1A Step-Up DC/DC Converters RoHS:否 制造商:STMicroelectronics 最大输入电压:4.5 V 开关频率:1.5 MHz 输出电压:4.6 V 输出电流:250 mA 输出端数量:2 最大工作温度:+ 85 C 安装风格:SMD/SMT |
| MAX1703EVKIT | 功能描述:直流/直流开关转换器 Evaluation Kit for the MAX1703 RoHS:否 制造商:STMicroelectronics 最大输入电压:4.5 V 开关频率:1.5 MHz 输出电压:4.6 V 输出电流:250 mA 输出端数量:2 最大工作温度:+ 85 C 安装风格:SMD/SMT |
| MAX17040EVKIT+ | 制造商:Maxim Integrated Products 功能描述:MAX17040G+ EVAL KIT - Boxed Product (Development Kits) |
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