LD1117 datasheet, PDF - EEWORLD Datasheet

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LD1117: Description1.2 V FIXED POSITIVE LDO REGULATOR, 1.2 V DROPOUT, PSSO2; Categorysemiconductor Power management; File Size2MB，44 Pages; ManufacturerSTMicroelectronics; Websitehttp://www.st.com/

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LD1117 Overview

1.2 V FIXED POSITIVE LDO REGULATOR, 1.2 V DROPOUT, PSSO2

LD1117 Parametric

Parameter Name	Attribute value
Minimum input voltage	1.5 V
Maximum input voltage	13.75 V
Number of functions	1
Number of terminals	2
Processing package description	ROHS COMPLIANT, DPAK-3
each_compli	Yes
EU RoHS regulations	Yes
state	Active
Adjustment type	FIXED POSITIVE SINGLE OUTPUT LDO REGULATOR
Adjustable	FIXED
dropout_voltage1_nom	1.1 V
Maximum voltage difference 1	1.2 V
input_voltage_absolute_max	15 V
jesd_30_code	R-PSSO-G2
jesd_609_code	e3
line_regulation_max	0.0024 V
load_regulation_max	0.0048 V
moisture_sensitivity_level	1
Number of outputs	1
erating_temperature,_tj_mi	0.0 Cel
erating_temperature,_tj_max	125 Cel
Maximum output current 1	0.8000 A
Rated output voltage 1	1.2 V
Minimum output voltage 1	1.19 V
Maximum output voltage 1	1.21 V
Packaging Materials	PLASTIC/EPOXY
ckage_code	TO-252
ckage_equivalence_code	SMSIP3H,.38,90TB
packaging shape	RECTANGULAR
Package Size	SMALL OUTLINE
eak_reflow_temperature__cel_	260
qualification_status	COMMERCIAL
seated_height_max	2.63 mm
sub_category	Other Regulators
surface mount	YES
Craftsmanship	BIPOLAR
terminal coating	MATTE TIN
Terminal form	GULL WING
Terminal spacing	2.28 mm
Terminal location	SINGLE
ime_peak_reflow_temperature_max__s_	30
voltage_tolerance_max	5 %
length	6.5 mm
width	6.1 mm

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LD1117

Adjustable and fixed low drop positive voltage regulator

Datasheet

production data

DPAK

TO-220

flows mostly into the load. Only a very common

10 µF minimum capacitor is needed for stability.

On chip trimming allows the regulator to reach a

very tight output voltage tolerance, within ± 1 % at

25 °C. The adjustable LD1117 is pin to pin

compatible with the other standard. Adjustable

voltage regulators maintaining the better

performances in terms of drop and tolerance.

SOT-223

SO-8

Features

•

Low dropout voltage (1 V typ.)

•

2.85 V device performances are suitable for

SCSI-2 active termination

•

Output current up to 800 mA

•

Fixed output voltage of: 1.2 V, 1.8 V, 2.5 V,

3.3 V, 5.0 V

•

Adjustable version availability (V

REF

= 1.25 V)

•

Internal current and thermal limit

•

Available in ± 1 % (at 25 °C) and 2 % in full

temperature range

•

Supply voltage rejection: 75 dB (typ.)

Description

The LD1117 is a low drop voltage regulator able

to provide up to 800 mA of output current,

available even in adjustable version (V

REF

1.25 V). Concerning fixed versions, are offered

the following output voltages: 1.2 V, 1.8 V, 2.5 V,

2.85 V, 3.3 V and 5.0 V. The device is supplied in:

SOT-223, DPAK, SO-8 and TO-220. The SOT-

223 and DPAK surface mount packages optimize

the thermal characteristics even offering a

relevant space saving effect. High efficiency is

assured by NPN pass transistor. In fact in this

case, unlike than PNP one, the quiescent current

November 2013

This is information on a product in full production.

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LD1117

List of tables

Table 1.

Table 2.

Table 3.

Table 4.

Table 5.

Table 6.

Table 7.

Table 8.

Table 9.

Table 10.

Table 11.

Table 12.

Table 13.

Table 14.

Table 15.

Table 16.

Table 17.

Table 18.

Table 19.

Table 20.

Table 21.

Table 22.

Table 23.

Table 24.

Table 25.

Absolute maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

Thermal data. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

Electrical characteristics of LD1117#12 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

Electrical characteristics of LD1117#18 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

Electrical characteristics of LD1117#25 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

Electrical characteristics of LD1117#33 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

Electrical characteristics of LD1117#50 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

Electrical characteristics of LD1117 (adjustable) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

Electrical characteristics of LD1117#12C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

Electrical characteristics of LD1117#18C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

Electrical characteristics of LD1117#25C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

Electrical characteristics of LD1117#33C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

Electrical characteristics of LD1117#50C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

Electrical characteristics of LD1117C (adjustable) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

TO-220 mechanical data (type STD-ST Dual Gauge) . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

TO-220 mechanical data (type STD-ST Single Gauge) . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

SOT-223 mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29

SO-8 mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30

DPAK mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31

Footprint data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35

SOT-223 tape and reel mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37

SO-8 tape and reel mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39

DPAK tape and reel mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40

Order codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42

Document revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43

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List of figures

LD1117

List of figures

Figure 1.

Figure 2.

Figure 3.

Figure 4.

Figure 5.

Figure 6.

Figure 7.

Figure 8.

Figure 9.

Figure 10.

Figure 11.

Figure 12.

Figure 13.

Figure 14.

Figure 15.

Figure 16.

Figure 17.

Figure 18.

Figure 19.

Figure 20.

Figure 21.

Figure 22.

Figure 23.

Figure 24.

Figure 25.

Figure 26.

Figure 27.

Block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

Pin connections (top view) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

Application circuit (for 1.2 V) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

Application circuit (for other fixed output voltages) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

Negative supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

Circuit for increasing output voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

Voltage regulator with reference . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

Battery backed-up regulated supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

Post-regulated dual supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

Adjustable output voltage application . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

Adjustable output voltage application with improved ripple rejection . . . . . . . . . . . . . . . . . 24

Drawing dimension TO-220 (type STD-ST Dual Gauge) . . . . . . . . . . . . . . . . . . . . . . . . . . 26

Drawing dimension TO-220 (type STD-ST Single Gauge) . . . . . . . . . . . . . . . . . . . . . . . . . 28

Drawing dimension SOT-223 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29

Drawing dimension SO-8 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30

Drawing dimension DPAK (type STD-ST) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

Drawing dimension DPAK (type Fujitsu-subcon.) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33

Drawing dimension DPAK (type IDS-subcon.) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34

DPAK footprint recommended data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35

Drawing dimension tube for TO-220 Dual Gauge (mm.) . . . . . . . . . . . . . . . . . . . . . . . . . . 36

Drawing dimension tube for TO-220 Single Gauge (mm.) . . . . . . . . . . . . . . . . . . . . . . . . . 36

Tape for SOT-223 (dimensions are in mm) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37

Reel for STO-223 (dimensions are in mm) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38

SO-8 tape and reel dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39

DPAK footprint . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40

Tape for DPAK . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41

Reel for DPAK . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41

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