LMT78_12-1.0R [GAPTEC]

Wide input, non-isolated & regulated, single output, SMD package;


型号：	LMT78_12-1.0R
厂家：	GAPTEC
描述：	Wide input, non-isolated & regulated, single output, SMD package
文件：	总5页 (文件大小：2187K)
中文：	中文翻译
下载：	下载PDF数据表文档文件

LMT78_1.0R series

Wide input, non-isolated & regulated, single output, SMD package

Switching Regulator

Eﬃciency up to 95%

No need for heat sinks

1.0AMP SMD package

Wide input voltage range

(4.75V - 32V)

Remote ON/OFF control

Short circuit protection (SCP),

thermal shutdown

Very low shutdown current

Super low ripple and noise

IEC62368, UL62368, EN62368

approved

The LMT78_1.0R series with high eﬃciency switching regulators is an

ideally supply for space constrained mobile applications. There is no

need for any heat sink, even if operated at + 85°C. The additional

features include remote ON/OFF control and adjustable output

voltage.

Super low ripple and noise of typically only 10mV and a shutdown input

current of typically only 15uA.

Adjustable output voltage

UL-62368-1 (E347551)

Common speciﬁcations

Cooling:

Output speciﬁcations

Free air convection

Item

Test conditions

Min

Typ

Max

Units

Short circuit protection mode:

Short circuit protection:

Operating temperature range:

Storage temperature range:

Lead temperature:

Hiccup mode

Output voltage

accuracy

Input voltage range at

full load

Continuous, automatic recovery

-40°C ~ +85°C

• 1.5/1.8/2.5/3.3VDC

• Others

Line regulation

Load regulation

Input voltage range at

full load

0.2

0.4

-55°C ~ +125°C

300°C MAX, 1.5mm from case for 10 sec

100°C MAX

Nominal input, 10% to

100% load

• 1.5/1.8/2.5VDC

• Others

Operating case temperature:

Reﬂow Soldering Temperature:

0.8

0.3

1.5

0.6

Peak temp. ≤ 245°C,maximum duration

time ≤ 60s at 217°C. For actual

application, please refer to

Ripple + Noise*

20MHz bandwidth

1.5/1.8/2.5/3.3VDC

• 20% - 100% load

• < 20% load

Others

• 10% - 100% load

• < 10% load

IPC/JEDEC J-STD-020D.1

mVp-p

Storage humidity range:

Case material:

< 95%

Plastic [UL94-V0]

> 2,000,000 hours

1.7g

mVp-p

MTBF (MIL-HDBK-217F,+25°C):

Package weight:

Temperature

coeﬃcient

- 40°C to + 85°C

ambient

0.03

%/°C

Dimensions:

15.24 * 11.40 * 8.25mm

Transient response Nominal input voltage,

deviation 25% load step change

150

Input speciﬁcations

Transient recovery Nominal input voltage,

0.2

time

25% load step change

Item

Test conditions

Min Typ

0.2

Max

1.5

Units

Vadj

input voltage range

%Vo

No load input

current

Switching

frequency

Full load, nominal

input voltage

• 1.5/1.8/2.5VDC

• 3.3/5/6.5VDC

• 09/12VDC

Reverse polarity

input

Avoid /

370

520

700

KHz

Not protected

Input ﬁlter

Capacitor

Capacitance ﬁlter

Remote ON/OFF*

• Module switch on

• Module switch oﬀ

suspended or connected to TTL

high level (3.2-5.5VDC)

* Ripple and noise tested with “parallel cable” method, please refer to DC-DC

pin connected to GND or low

level (0-0.8VDC)

Example:

LMT78_05-1.0R

• Input current when

switched oﬀ

0.2

LM = Series; T = SMT case; 05 = 5Vout; 1.0 = 1.0A; R = Revised

* The voltage of Remote ON/OFF pin is relative to pin GND.

Note:

1. All speciﬁcations measured at Ta = 25°C, humidity <75%, nominal input voltage

and rated output load unless otherwise speciﬁed.

2. In this datasheet, all the test methods of indications are based on corporate

standards.

Page 1 of 5

LMT78_1.0R – Rev. 2020-1.3

Speciﬁcations subject to change without notice.

GAPTEC-Electronic GmbH & Co. KG

sales@gaptec-electronic.com – www.gaptec-electronic.com

LMT78_1.0R series

Wide input, non-isolated & regulated, single output, SMD package

EMC speciﬁcations

EMI

CISPR32/EN55032

IEC/EN61000-4-2

IEC/EN61000-4-3

IEC/EN61000-4-4

IEC/EN61000-4-5

IEC/EN61000-4-6

CLASS B

Contact 4KV

10V/m

(see EMC recommended circuit, 2 )

perf. Criteria B

EMI

EMS

ESD

perf. Criteria A

EFT

Surge

1KV

perf. Criteria B (see EMC recommended circuit, 1 )

line to line 1KV perf. Criteria B (see EMC recommended circuit, 1 )

3 Vr.m.s perf. Criteria A

Part Number

Input Voltage [VDC]

Output Voltage

Output Current

[mA, Max]

Capacitive load

[µF, max]

Eﬃciency

[Vin. max]

Nominal

Range

[VDC]

1.5

1.8

2.5

3.3

LMT78_1.5-1.0R

LMT78_1.8-1.0R

LMT78_02-1.0R

LMT78_03-1.0R

LMT78_05-1.0R

LMT78_6.5-1.0R

LMT78_09-1.0R

LMT78_12-1.0R

LMT78_15-1.0R

4.75-32

6.5-36

8-36

1000

800

680

10-36

6.5

13-36

16-36

20-36

800

Typical characteristics

Page 2 of 5

LMT78_1.0R – Rev. 2020-1.3

Speciﬁcations subject to change without notice.

GAPTEC-Electronic GmbH & Co. KG

sales@gaptec-electronic.com – www.gaptec-electronic.com

LMT78_1.0R series

Wide input, non-isolated & regulated, single output, SMD package

Eﬃciency

LMT78_05-0.5R

Typical application circuit

Note:

1. C1 and C2 are required and should be connected close to the pin terminal

of the module.

2. The capacitance of C1 and C2 refer to table 1, it can be increased properly

if required, and tantalum or low ESR electrolytic capacitors may also

suﬃce.

3. Cannot be used in parallel for output and hot swap.

To reduce the output ripple furtherly, it is suggested to connect a “LC”

ﬁlter at the output terminal, and recommended value of L is 10μH-47μH.

Part number

Ra1/Ra2

(Vadj resistance)

(ceramic capacitor) (ceramic capacitor)

LMT78_1.5-1.0R

LMT78_1.8-1.0R

LMT78_02-1.0R

LMT78_03-1.0R

LMT78_05-1.0R

LMT78_6.5-1.0R

LMT78_09-1.0R

LMT78_12-1.0R

LMT78_15-1.0R

10μF/50V

22μF/10V

22μF/16V

22μF/25V

Refer to Vadj

resistance

calculation

Page 3 of 5

LMT78_1.0R – Rev. 2020-1.3

Speciﬁcations subject to change without notice.

GAPTEC-Electronic GmbH & Co. KG

sales@gaptec-electronic.com – www.gaptec-electronic.com

LMT78_1.0R series

Wide input, non-isolated & regulated, single output, SMD package

LC ﬁlter application circuit

EMC solution-recommended circuit

FUSE

Selected based on the actual

input current from the customer

MOV

LDM1

S20K30

82μH

680μF/50V

refer to Table 1

4.7μF/50V

68μH

C1/C5

LDM2

Note: Part ① in the Fig. 4 is for EMS test, part ② is for EMI ﬁltering; parts ① and ②

can be added based on actual requirement.

Application of Vadj and calculation of Vadj resistance

Vout (V)

R1 (KΩ)

7.5

4.7

9.1

R2 (KΩ)

7.5

R3 (KΩ)

Vref (V)

0.75

1.5

1.8

2.5

3.3

6.8

8.2

3.9

7.5

6.5

5.6

3.9

2.4

4.3

Note: The 1.5VDC output model only support Vadj up, do not support Vadj down.

Page 4 of 5

LMT78_1.0R – Rev. 2020-1.3

Speciﬁcations subject to change without notice.

GAPTEC-Electronic GmbH & Co. KG

sales@gaptec-electronic.com – www.gaptec-electronic.com

LMT78_1.0R series

Wide input, non-isolated & regulated, single output, SMD package

Mechanical dimensions

Note:

Unit: mm[inch]

Pin selection tolerances: 0.10mm [ 0.004inch]

General tolerances: 0.25mm [ 0.010inch]

Page 5 of 5

LMT78_1.0R – Rev. 2020-1.3

Speciﬁcations subject to change without notice.

GAPTEC-Electronic GmbH & Co. KG

sales@gaptec-electronic.com – www.gaptec-electronic.com

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