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| 型号： | MAX1760EUB |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 6/14页 |
| 文件大小： | 0K |
| 描述： | IC REG BST SYNC 3.3V/ADJ 10UMAX |
| 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： | 3.3V，2.5 V ~ 5.5 V |
| 输入电压： | 0.7 V ~ 5.5 V |
| PWM 型： | 混合物 |
| 频率 - 开关： | 1MHz |
| 电流 - 输出： | 800mA |
| 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： | 10-TFSOP，10-MSOP（0.118"，3.00mm 宽） |
| 包装： | 管件 |
| 供应商设备封装： | 10-µMAX |
0.8A, Low-Noise, 1MHz,
Step-Up DC-DC Converter
Typical Operating Characteristics (continued)
(Circuit of Figure 2, V IN = 2.4V, V OUT = 3.3V, T A = +25°C, unless otherwise noted.)
16
12
NOISE SPECTRUM
A
TURN-ON WAVEFORMS
NO SOFT-START COMPONENTS
A
SOFT-START WAVEFORMS
R SS = 500k ? , C SS = 0.1 μ F
8
4
0
B
C
OV
B
C
0V
0.1
1
FREQUENCY (MHz)
10
t = 2ms/div
A = ON, 5V/div
2.00ms/div
A = ON, 5V/div
B = INPUT CURRENT, 500mA/div
C = V OUT , 2V/div
B = INPUT CURRENT, 100mA/div
C = V OUT , 2V/div
Pin Description
PIN
1
2
3
4
5
6
7
8
9
10
—
NAME
ISET
REF
GND
FB
OUT
CLK/SEL
PGND
LX
POUT
ON
ON
EP
FUNCTION
N-Channel Current-Limit Control. For maximum current limit, connect to REF. To reduce current, supply a
voltage between REF and GND by means of a resistive voltage-divider. If soft-start is desired, connect a
capacitor from ISET to GND. When ON = high, or V REF <80% of nominal value, an on-chip 100k ? switched
resistor discharges this pin to GND.
1.250V Voltage Reference Bypass. Connect a 0.22μF ceramic bypass capacitor to GND. Up to 50μA of
external load current is allowed.
Ground. Connect to PGND with short trace.
DC-DC Converter Feedback Input. To set fixed output voltage of +3.3V, connect FB to ground. For
adjustable output of 2.5V to 5.5V, connect to a resistive divider from OUT to GND. FB set point = 1.24V.
IC Power, Supplied from the Output. Bypass to GND with a 0.68μF ceramic capacitor, and connect to POUT
with a series 4.7 ? resistor (Figure 2).
Clock Input for the DC-DC Converter. Also serves to program operating mode of switcher as follows:
CLK/SEL = LO: Normal operation—operates at a fixed frequency, automatically switching to low-power
mode if load is minimized.
CLK/SEL = HI: Forced-PWM mode—operates in low-noise, constant-frequency mode at all loads.
CLK/SEL = Clocked: Forced-PWM mode with the internal oscillator synchronized to CLK in 500kHz to
1200kHz range.
Source of N-Channel Power MOSFET Switch
Inductor Connection
Power Output. P-channel synchronous-rectifier source.
MAX1760 Enable Input. When ON is low, the IC is on. Connect to GND for normal operation.
MAX1760H Enable Input. When ON is high, the IC is on. Connect to OUT for normal operation.
Exposed Paddle (TDFN Package Only). Internally connected to GND. Connect to a large ground plane to
maximize thermal dissipation. Do not use as sole ground connection.
6
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX1760EUB+ | 功能描述:直流/直流开关转换器 0.8A Low-Noise 1MHz Step-Up 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 |
| MAX1760EUB+T | 功能描述:直流/直流开关转换器 0.8A Low-Noise 1MHz Step-Up 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 |
| MAX1760EUB-T | 功能描述:直流/直流开关转换器 0.8A Low-Noise 1MHz Step-Up 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 |
| MAX1760EVKIT | 功能描述:直流/直流开关转换器 Evaluation Kit for the MAX1760 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 |
| MAX1760HETB | 制造商:Maxim Integrated Products 功能描述:0.8A, LOW-NOISE, 1MHZ, STEP-UP DC-DC CONVERTE - Rail/Tube |
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