- 您现在的位置：买卖IC网 > PDF目录15514 > MAX1761EEE+ (Maxim Integrated Products)IC REG CTRLR BUCK PWM CM 16-QSOP PDF资料下载
参数资料
| 型号： | MAX1761EEE+ |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 10/23页 |
| 文件大小： | 0K |
| 描述： | IC REG CTRLR BUCK PWM CM 16-QSOP |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 100 |
| PWM 型： | 电流模式 |
| 输出数： | 2 |
| 频率 - 最大： | 428kHz |
| 电源电压： | 4.5 V ~ 20 V |
| 降压： | 是 |
| 升压： | 无 |
| 回扫： | 无 |
| 反相： | 无 |
| 倍增器： | 无 |
| 除法器： | 无 |
| Cuk： | 无 |
| 隔离： | 无 |
| 工作温度： | -40°C ~ 85°C |
| 封装/外壳： | 16-SSOP（0.154"，3.90mm 宽） |
| 包装： | 管件 |
Small, Dual, High-Efficiency
Buck Controller for Notebooks
Table 1. Component Selection for Standard Applications
COMPONENT
Input Range
Frequency
2.5V AT 2.0A
5V to 18V
350kHz
2.5V AT 3.5A
5V to 18V
350kHz
1.8V AT 2.0A
5V to 18V
250kHz
3.3V AT 2A
5V to 18V
350kHz
Complementary
P- and N-Channel
Fairchild FDS8958A
Siliconix IRF7319
Fairchild FDS8958A
Fairchild FDS8958A
MOSFETs
7 μ H
3.5 μ H
7 μ H
10 μ H
Inductor
Input Capacitor
Output Capacitor
Current-Sense
Feedback Resistors
Sumida CDRH104-
7R0NC
10 μ F, 25V
Taiyo Yuden
TMK432BJ106KM
330 μ F, 10V
Kemet
T510X337K101
R 1 = Short
R 2 = Open
Sumida CDRH127-
3R5NC
2 x 10 μ F, 25V
Taiyo Yuden
TMK432BJ106KM
2 x 330 μ F, 10V
Kemet
T510X337K010
R 1 = 1k
R 2 = 1k
Sumida CDRH104-
7R0NC
10 μ F, 25V
Taiyo Yuden
TMK432BJ106KM
330 μ F, 10V
Kemet
T510X337K010
R 3 = Short
R 4 = Open
Sumida CDRH104-
100NC
10 μ F, 25V
Taiyo Yuden
TMK432BJ106KM
330 μ F, 10V
Kemet
T510X337K010
R 1 = Short
R 2 = Open
Table 2. Component Suppliers
Voltage Reference (REF)
SUPPLIER
Fairchild
Semiconductor
Kemet
Panasonic
Rohm
Sanyo
Siliconix
Sumida
Taiyo Yuden
PHONE
408-822-2181
408-986-0424
847-468-5624
760-929-2100
619-661-6835
408-988-8000
847-956-0666
408-573-4150
WEB
www.fairchildsemi.com
www.kemet.com
www.panasonic. com
www.rohmelectronics.
com
www.secc.co.jp
www.vishay.com
www.sumida.com
www.t-yuden.com
The internal 2V reference is accurate to ±1% (max)
over temperature and can supply a 50μA load current.
Bypass REF to GND with a 0.1μF capacitor when REF
is unloaded. Use a 0.22μF capacitor when applying an
external load.
Free-Running Constant-On-Time PWM
Controller with Input Feed-Forward
The Quick-PWM control architecture is a constant-on-
time, current-mode type with voltage feed-forward
(Figure 3). This architecture relies on the output ripple
voltage to provide the PWM ramp signal. Thus, the out-
put filter capacitor ’ s ESR acts as a feedback resistor.
The control algorithm is simple: the high-side switch on-
time is determined solely by a one-shot whose period is
comparator has 40mV hysteresis to prevent startup
oscillations on slowly rising input voltages.
If VL is not driven externally, then V+ should be at least
5V to ensure proper operation. If V+ is running from a
5V (±10%) supply, V+ should be externally connected
to VL. Overdriving the VL regulator with an external 5V
supply also increases the MAX1761 ’ s efficiency.
inversely proportional to input voltage and directly pro-
portional to output voltage (see the On-Time One-Shot
section). Another one-shot sets a minimum off-time
(400ns typical). The on-time one-shot is triggered if the
error comparator is low, the low-side switch current is
below the current-limit threshold, and the minimum off-
time one-shot has timed out.
10
______________________________________________________________________________________
相关PDF资料 |
PDF描述 |
|---|---|
| MAX5015ESA+ | IC REG CTRLR ISO PWM CM 8-SOIC |
| MAX5094BASA+ | IC REG CTRLR FLYBK DIV ISO 8SOIC |
| MAX1771ESA+ | IC REG CTRLR BST PWM 8-SOIC |
| MAX1744EUB+ | IC REG CTRLR BUCK PWM 10-UMAX |
| MAX1876EEG+ | IC REG CTRLR BUCK PWM VM 24-QSOP |
相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX1761EEE+ | 功能描述:DC/DC 开关控制器 Dual Buck Controller RoHS:否 制造商:Texas Instruments 输入电压:6 V to 100 V 开关频率: 输出电压:1.215 V to 80 V 输出电流:3.5 A 输出端数量:1 最大工作温度:+ 125 C 安装风格: 封装 / 箱体:CPAK |
| MAX1761EEE+T | 功能描述:DC/DC 开关控制器 Dual Buck Controller RoHS:否 制造商:Texas Instruments 输入电压:6 V to 100 V 开关频率: 输出电压:1.215 V to 80 V 输出电流:3.5 A 输出端数量:1 最大工作温度:+ 125 C 安装风格: 封装 / 箱体:CPAK |
| MAX1761EEE-T | 功能描述:DC/DC 开关控制器 RoHS:否 制造商:Texas Instruments 输入电压:6 V to 100 V 开关频率: 输出电压:1.215 V to 80 V 输出电流:3.5 A 输出端数量:1 最大工作温度:+ 125 C 安装风格: 封装 / 箱体:CPAK |
| MAX1761EVKIT | 功能描述:DC/DC 开关控制器 Evaluation Kit for the MAX1761 RoHS:否 制造商:Texas Instruments 输入电压:6 V to 100 V 开关频率: 输出电压:1.215 V to 80 V 输出电流:3.5 A 输出端数量:1 最大工作温度:+ 125 C 安装风格: 封装 / 箱体:CPAK |
| MAX1762EUB | 功能描述:DC/DC 开关控制器 RoHS:否 制造商:Texas Instruments 输入电压:6 V to 100 V 开关频率: 输出电压:1.215 V to 80 V 输出电流:3.5 A 输出端数量:1 最大工作温度:+ 125 C 安装风格: 封装 / 箱体:CPAK |
发布紧急采购，3分钟左右您将得到回复。