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参数资料
| 型号： | L4978D013TR |
| 厂商： | STMICROELECTRONICS |
| 元件分类： | 稳压器 |
| 英文描述： | 3.5 A SWITCHING REGULATOR, 300 kHz SWITCHING FREQ-MAX, PDSO16 |
| 封装： | SO-16 |
| 文件页数： | 6/13页 |
| 文件大小： | 581K |
| 代理商： | L4978D013TR |
L4978
2/13
Table 2. Block Diagram
Figure 3. Pins Connection (Top view)
Table 3. Pin Description
N°
Pin
Name
Function
1
2
GND
Ground
2
3
SS_INH
A logic signal (active low) disables the device (sleep mode operation).
A capacitor connected between this pin and ground determines the soft start time.
When this pin is grounded disables the device (driven by open collector/drain).
3
4
OSC
An external resistor connected between the unregulated input voltage and this pin
and a capacitor connected from this pin to ground fix the switching frequency. (Line
feed forward is automatically obtained)
INHIBIT
SOFTSTART
VOLTAGES
MONITOR
THERMAL
SHUTDOWN
E/A
PWM
3.3V
OSCILLATOR
R
S
Q
INTERNAL
REFERENCE
INTERNAL
SUPPLY
3.3V
5.1V
DRIVE
CBOOT
CHARGE
CBOOT
CHARGE
AT LIGHT
LOADS
2
7
8
FB
COMP
SS_INH
3
1
4
6
5
BOOT
OSC
GND
OUT
VCC
D97IN594
GND
SS_INH
OSC
OUT
1
3
2
4
VCC
BOOT
COMP
FB
8
7
6
5
D97IN595
N.C.
GND
SS_INH
OSC
OUT
N.C.
OUT
N.C.
BOOT
VCC
COMP
FB
N.C.
1
3
2
4
5
6
7
8
14
13
12
11
10
9
15
16
D97IN596
DIP-8
SO16W
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相关代理商/技术参数 |
参数描述 |
|---|---|
| L4979D | 功能描述:低压差稳压器 - LDO Lo DROP Vltg REG 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 |
| L4979D_06 | 制造商:STMICROELECTRONICS 制造商全称:STMicroelectronics 功能描述:LOW DROP VOLTAGE REGULATOR |
| L4979D013TR | 功能描述:低压差稳压器 - LDO Lo DROP Vltg REG 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 |
| L4979D13TR | 制造商:STMICROELECTRONICS 制造商全称:STMicroelectronics 功能描述:LOW DROP VOLTAGE REGULATOR |
| L4979D-E | 功能描述:低压差稳压器 - LDO LOW DROP VOLT REG 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 |
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