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參數(shù)資料
| 型號： | L4964HT |
| 廠商： | STMICROELECTRONICS |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | 4 A SWITCHING REGULATOR, 120 kHz SWITCHING FREQ-MAX, PZFM15 |
| 封裝： | HORIZONTAL, PLASTIC, MULTIWATT-15 |
| 文件頁數(shù)： | 1/13頁 |
| 文件大小： | 1058K |
| 代理商： | L4964HT |
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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| L4969 | 功能描述:低壓差穩(wěn)壓器 - LDO Triple w/Lo-Spd Tran RoHS:否 制造商:Texas Instruments 最大輸入電壓:36 V 輸出電壓:1.4 V to 20.5 V 回動電壓（最大值）:307 mV 輸出電流:1 A 負載調(diào)節(jié):0.3 % 輸出端數(shù)量: 輸出類型:Fixed 最大工作溫度:+ 125 C 安裝風格:SMD/SMT 封裝 / 箱體:VQFN-20 |
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