LM2598SX-5.0 datasheet(6/47 Pages) TI1

Nome de Peças	LM2598SX-5.0

Descrição Electrónicos	SIMPLE SWITCHER Power Converter 150-kHz 1-A Step-Down Voltage Regulator, With Features

Download	47 Pages

Scroll/Zoom	100%

Fabricante Electrônico	TI1 [Texas Instruments]

Página de início	http://www.ti.com

Logo

6 / 47 page

6

LM2598

SNVS125D – MARCH 1998 – REVISED MAY 2016

www.ti.com

Product Folder Links: LM2598

Submit Documentation Feedback

(1)

All room temperature limits are 100% production tested. All limits at temperature extremes are specified via correlation using standard

Statistical Quality Control (SQC) methods. All limits are used to calculate Average Outgoing Quality Level (AOQL).

(2)

Typical numbers are at 25°C and represent the most likely norm.

(3)

External components such as the catch diode, inductor, input and output capacitors can affect switching regulator system performance.

When the LM2598 is used as shown in the Figure 42 and Figure 45, system performance is as shown in system parameters of Electrical

Characteristics.

7.8 Electrical Characteristics – Adjustable Voltage Version

Specifications are for TJ = 25°C, unless otherwise specified.

PARAMETER

TEST CONDITIONS

MIN(1)

TYP(2)

MAX(1)

UNIT

SYSTEM PARAMETERS(3) (see Figure 42 and Figure 45 for test circuits)

VFB

Feedback voltage

4.5 V

≤ VIN ≤ 40 V, 0.1 A ≤ ILOAD ≤ 1 A

1.23

V

VOUT programmed for 3 V,

circuit of Figure 42 and

Figure 45

TJ = 25°C

1.193

1.267

Over full operating

temperature range

1.18

1.28

η

Efficiency

VIN = 12 V, VOUT = 3 V, ILOAD = 1 A

78%

(1)

All room temperature limits are 100% production tested. All limits at temperature extremes are specified via correlation using standard

Statistical Quality Control (SQC) methods. All limits are used to calculate Average Outgoing Quality Level (AOQL).

(2)

Typical numbers are at 25°C and represent the most likely norm.

(3)

The switching frequency is reduced when the second stage current limit is activated. The amount of reduction is determined by the

severity of current overload.

(4)

No diode, inductor or capacitor connected to output pin.

(5)

Feedback pin removed from output and connected to 0 V to force the output transistor switch ON.

(6)

Feedback pin removed from output and connected to 12 V for the 3.3-V, 5-V, and the Adjustable version, and 15 V for the 12-V version,

to force the output transistor switch OFF.

(7)

VIN = 40 V.

7.9 Electrical Characteristics – All Output Voltage Versions

Specifications are for TJ = 25°C unless otherwise noted. Unless otherwise specified, VIN = 12 V for the 3.3-V, 5-V, and

Adjustable version and VIN = 24 V for the 12-V version. ILOAD = 500 mA

PARAMETER

TEST CONDITIONS

MIN(1)

TYP(2)

MAX(1)

UNIT

DEVICE PARAMETERS

Ib

Feedback bias

current

Adjustable version only,

VFB = 1.3 V

TJ = 25°C

10

50

nA

Over full operating

temperature range

100

fO

Oscillator frequency

See(3)

TJ = 25°C

127

150

173

kHz

Over full operating

temperature range

110

173

VSAT

Saturation voltage

IOUT = 1 A

(4) (5)

TJ = 25°C

1

1.2

V

Over full operating

temperature range

1.3

DC

Max duty cycle (ON)

See(5)

100%

Minimum duty cycle

(OFF)

See(6)

0%

ICL

Current limit

Peak current(4)(5)

TJ = 25°C

1.2

1.5

2.4

A

Over full operating

temperature range

1.15

2.6

IL

Output leakage

current

Output = 0 V, see(4)(6)(7)

50

μA

Output = –1 V

2

15

mA

IQ

Operating quiescent

current

SD/SS pin open(6)

5

10

mA

ISTBY

Current standby

quiescent

SD/SS pin = 0 V(7)

TJ = 25°C

85

200

μA

Over full operating

temperature range

250

Nº de peça semelhante - LM2598SX-5.0

Fabricante Electrônico	Nome de Peças	Folha de dados	Descrição Electrónicos
National Semiconductor ...	LM2598S-12	847Kb / 33P	SIMPLE SWITCHER Power Converter 150 kHz 1A Step-Down Voltage Regulator, with Features
	LM2598S-3.3	847Kb / 33P	SIMPLE SWITCHER Power Converter 150 kHz 1A Step-Down Voltage Regulator, with Features
	LM2598S-5.0	847Kb / 33P	SIMPLE SWITCHER Power Converter 150 kHz 1A Step-Down Voltage Regulator, with Features
	LM2598S-ADJ	847Kb / 33P	SIMPLE SWITCHER Power Converter 150 kHz 1A Step-Down Voltage Regulator, with Features

More results

Descrição semelhante - LM2598SX-5.0

Fabricante Electrônico	Nome de Peças	Folha de dados	Descrição Electrónicos
National Semiconductor ...	LM2597	900Kb / 34P	SIMPLE SWITCHER Power Converter 150 kHz 0.5A Step-Down Voltage Regulator, with Features
	LM2590HV	752Kb / 20P	SIMPLE SWITCHER Power Converter 150 kHz 1A Step-Down Voltage Regulator, with Features
	LM2598	847Kb / 33P	SIMPLE SWITCHER Power Converter 150 kHz 1A Step-Down Voltage Regulator, with Features
	LM2593HV	753Kb / 21P	SIMPLE SWITCHER Power Converter 150 kHz 2A Step-Down Voltage Regulator, with Features
	LM2599	812Kb / 31P	SIMPLE SWITCHER Power Converter 150 kHz 3A Step-Down Voltage Regulator, with Features
Texas Instruments	LM2595	4Mb / 43P	[Old version datasheet] SIMPLE SWITCHER Power Converter 150-kHz 1-A Step-Down Voltage Regulator
	LM2597HVM-ADJ	2Mb / 48P	[Old version datasheet] LM2597/LM2597HV SIMPLE SWITCHER Power Converter 150 kHz 0.5A Step-Down Voltage Regulator, with Features
	LM2593HV	1Mb / 31P	[Old version datasheet] SIMPLE SWITCHER Power Converter 150-kHz, 2-A Step-Down Voltage Regulator
	LM2592HV	2Mb / 31P	[Old version datasheet] SIMPLE SWITCHER Power Converter 150-kHz 2-A Step-Down Voltage Regulator
	LM2594	2Mb / 41P	[Old version datasheet] SIMPLE SWITCHER Power Converter 150-kHz 0.5-A Step-Down Voltage Regulator

More results

LM2598SX-5.0 Folha de dados(PDF) 6 Page - Texas Instruments

LM2598SX-5.0 Folha de dados(HTML) 6 Page - Texas Instruments

Nº de peça semelhante - LM2598SX-5.0

Descrição semelhante - LM2598SX-5.0

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47

Folha de dados Download

Ligação URL