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参数资料
| 型号： | L4964 |
| 厂商： | STMICROELECTRONICS |
| 元件分类： | 稳压器 |
| 英文描述： | 4 A SWITCHING REGULATOR, 120 kHz SWITCHING FREQ-MAX, PZFM15 |
| 封装： | VERTICAL, PLASTIC, MULTIWATT-15 |
| 文件页数： | 1/13页 |
| 文件大小： | 1058K |
| 代理商： | L4964 |
L4964
July 2003
HIGH CURRENT SWITCHING REGULATOR
.
4 A OUTPUT CURRENT
.
5.1 V TO 28 V OUTPUT VOLTAGE RANGE
.
0 TO 100 % DUTY CYCLE RANGE
.
PRECISE (
± 3 %) ON-CHIP REFERENCE
.
SWITCHING FREQUENCY UP TO 120 KHz
.
VERY HIGH EFFICIENCY (UP TO 90 %)
.
VERY FEW EXTERNAL COMPONENTS
.
SOFT START
.
RESET OUTPUT
.
CURRENT LIMITING
.
INPUT FOR REMOTE INHIBIT AND SYN-
CHRONUS PWM
.
THERMAL SHUTDOWN
DESCRIPTION
The L4964 is a stepdown power switching regulator
delivering 4A at a voltage variable from 5.1V to 28V.
Features of the device include overload protection,
soft start, remote inhibit, thermal protection, a reset
output for microprocessors and a PWM comparator
input for synchronization in multichip configurations.
The L4964 is mounted in a 15-lead Multiwatt
plas-
tic power package and requires very few external
components.
Efficient operation at switching frequencies up to
120kHz allows a reduction in the size and cost of ex-
ternal filter components.
MULTIWATT15 Vertical
(Plastic Package)
ORDERING NUMBER : L4964
MULTIWATT15 Horizontal
(Plastic Package)
ORDERING NUMBER : L4964HT
Pins 1, 4, 15 must not be connected. Leave open circuit.
PIN CONNECTION (top view)
1/13
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相关代理商/技术参数 |
参数描述 |
|---|---|
| L4964_03 | 制造商:STMICROELECTRONICS 制造商全称:STMicroelectronics 功能描述:HIGH CURRENT SWITCHING REGULATOR |
| L4964HT | 功能描述:直流/直流开关调节器 5.1 to 28V 4.0 Amp RoHS:否 制造商:International Rectifier 最大输入电压:21 V 开关频率:1.5 MHz 输出电压:0.5 V to 0.86 V 输出电流:4 A 输出端数量: 最大工作温度: 安装风格:SMD/SMT 封装 / 箱体:PQFN 4 x 5 |
| L4969 | 功能描述:低压差稳压器 - LDO Triple w/Lo-Spd Tran RoHS:否 制造商:Texas Instruments 最大输入电压:36 V 输出电压:1.4 V to 20.5 V 回动电压（最大值）:307 mV 输出电流:1 A 负载调节:0.3 % 输出端数量: 输出类型:Fixed 最大工作温度:+ 125 C 安装风格:SMD/SMT 封装 / 箱体:VQFN-20 |
| L4969013TR | 功能描述:低压差稳压器 - LDO Triple w/Lo-Spd Tran RoHS:否 制造商:Texas Instruments 最大输入电压:36 V 输出电压:1.4 V to 20.5 V 回动电压（最大值）:307 mV 输出电流:1 A 负载调节:0.3 % 输出端数量: 输出类型:Fixed 最大工作温度:+ 125 C 安装风格:SMD/SMT 封装 / 箱体:VQFN-20 |
| L4969D | 功能描述:线性稳压器 - 标准 Triple w/Lo-Spd Tran RoHS:否 制造商:STMicroelectronics 输出类型: 极性: 输出电压:1.8 V 输出电流:150 mA 负载调节: 最大输入电压:5.5 V 线路调整率: 最大工作温度:+ 125 C 安装风格:SMD/SMT 封装 / 箱体:SOT-323-5L |
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