Datasheet > LM3102_15

LM3102_15

更新时间： 2022-02-26 10:48:13

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德州仪器 - TI		/
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描述
LM3102/-Q1 SIMPLE SWITCHERÂ® Synchronous 1-MHz, 2.5-A Step-Down Voltage Regulator

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LM3102_15 数据手册

LM3102, LM3102-Q1

SNVS515H –SEPTEMBER 2007–REVISED JUNE 2015

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Electrical Characteristics (continued)

Specifications with standard type are for T_J= 25°C unless otherwise specified. Minimum and Maximum limits are specified

through test, design, or statistical correlation. Typical values represent the most likely parametric norm at T_J= 25°C, and are

provided for reference purposes only. Unless otherwise stated the following conditions apply: V_IN= 18 V, V_OUT= 3.3 V.

PARAMETER

CURRENT LIMIT

I_CL

TEST CONDITIONS

MIN

TYP

MAX UNIT

Syn. MOSFET current limit

threshold

LM3102

2.7

1.5

I_CL

Syn. MOSFET current limit

threshold

LM3102TLX–1

ON/OFF TIMER

V_IN= 10V, R_ON= 100 kΩ

V_IN= 30V, R_ON= 100 kΩ

1.38

0.47

t_on

ON timer pulse width

µs

ON timer minimum pulse

width

t_on-MIN

t_off

150

260

OFF timer pulse width

ENABLE INPUT

EN Pin input threshold

1.18

over the full Operating

Junction Temperature

(T_J) range

V_EN

V_ENrising

V_ENfalling

1.13

1.23

V_EN-HYS

Enable threshold hysteresis

REGULATION AND OVERVOLTAGE COMPARATOR

0.8

V_SS≥ 0.8V

T_J= −40°C to +125°C

over the full Operating

Junction Temperature

(T_J) range

0.784

0.788

0.816

V_FB

In-regulation feedback voltage

over the full Operating

Junction Temperature

(T_J) range

V_SS≥ 0.8V

T_J= 0°C to +125°C

0.812

0.92

V_FB-OV

Feedback overvoltage

threshold

over the full Operating Junction Temperature (T_J)

range

0.888

0.945

I_FB

THERMAL SHUTDOWN

T_SD

Thermal shutdown

temperature

T_Jrising

T_Jfalling

165

°C

T_SD-HYS

Thermal shutdown

temperature hysteresis

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