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TLV61220DBVR
Schematic [ru]
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Texas Instruments TLV61220DBVR Schematic [ru]

SW
L
1
4.7:H
VBAT
VOUT
FB
2
10 F:
EN GND
TLV61220
V
OUT
1
2
V
IN
1
10 F:
0.7V to V
OUT
1.8V to 5.5V
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SLVSB53A –MAY 2012–REVISED DECEMBER 2014
TLV61220 Low-Input Voltage Step-Up Converter in Thin SOT-23 Package

1 Features 3 Description

1
• Up to 95% Efficiency at Typical Operating Conditions
• 5.5-μA Quiescent Current
• Startup Into Load at 0.7-V Input Voltage
• Operating Input Voltage from 0.7 V to 5.5 V
• Pass-Through Function during Shutdown
• Minimum Switching Current 200 mA
• Protections: – Output Overvoltage – Overtemperature – Input Undervoltage Lockout
• Adjustable Output Voltage from 1.8 V to 5.5 V
• Small 6-pin Thin SOT-23 Package

2 Applications

• Battery Powered Applications – 1 to 3 Cell Alkaline, NiCd or NiMH – 1 Cell Li-Ion or Li-Primary
• Solar or Fuel Cell Powered Applications
• Consumer and Portable Medical Products
• Personal Care Products
• White or Status LEDs
• Smartphones
The TLV61220 device provides a power-supply solution for products powered by either a single-cell, two-cell, or three-cell alkaline, NiCd or NiMH, or one­cell Li-Ion or Li-polymer battery. Possible output currents depend on the input-to-output voltage ratio. The boost converter is based on a hysteretic controller topology using synchronous rectification to obtain maximum efficiency at minimal quiescent currents. The output voltage of the adjustable version can be programmed by an external resistor divider, or is set internally to a fixed output voltage. The converter can be switched off by a featured enable pin. While being switched off, battery drain is minimized. The device is packaged in a 6-pin thin SOT-23 package (DBV).
spacer
Device Information
PART NUMBER PACKAGE BODY SIZE (NOM)
TLV61220 SOT (6) 2.90 mm x 1.60 mm (1) For all available packages, see the orderable addendum at
the end of the datasheet.
TLV61220
(1)

4 Typical Application Schematic

1
An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications, intellectual property matters and other important disclaimers. PRODUCTION DATA.
TLV61220
SLVSB53A –MAY 2012–REVISED DECEMBER 2014
www.ti.com

Table of Contents

1 Features.................................................................. 1
2 Applications ........................................................... 1
3 Description ............................................................. 1
4 Typical Application Schematic............................. 1
5 Revision History..................................................... 2
6 Device Options....................................................... 3
7 Pin Configuration and Functions......................... 3
8 Specifications......................................................... 4
8.1 Absolute Maximum Ratings...................................... 4
8.2 ESD Ratings.............................................................. 4
8.3 Recommended Operating Conditions....................... 4
8.4 Thermal Information.................................................. 4
8.5 Electrical Characteristics........................................... 5
8.6 Typical Characteristics.............................................. 6
9 Parameter Measurement Information .................. 9
10 Detailed Description ........................................... 10
10.1 Overview ............................................................... 10
10.2 Functional Block Diagram..................................... 10
10.3 Feature Description............................................... 10
10.4 Device Functional Modes...................................... 11
11 Application and Implementation........................ 12
11.1 Application Information.......................................... 12
11.2 Typical Application ............................................... 12
12 Power Supply Recommendations ..................... 16
13 Layout................................................................... 16
13.1 Layout Guidelines ................................................. 16
13.2 Layout Example .................................................... 16
13.3 Thermal Considerations........................................ 16
14 Device and Documentation Support ................. 17
14.1 Device Support...................................................... 17
14.2 Documentation Support ........................................ 17
14.3 Trademarks........................................................... 17
14.4 Electrostatic Discharge Caution............................ 17
14.5 Glossary................................................................ 17
15 Mechanical, Packaging, and Orderable
Information........................................................... 17

5 Revision History

Changes from Original (May 2012) to Revision A Page
• Added ESD Ratings table, Feature Description section, Device Functional Modes, Application and Implementation section, Power Supply Recommendations section, Layout section, Device and Documentation Support section, and
Mechanical, Packaging, and Orderable Information section.................................................................................................. 1
2 Submit Documentation Feedback Copyright © 2012–2014, Texas Instruments Incorporated
Product Folder Links: TLV61220
1 3
46
2
5
A B C
SW ENGND
VOUTVBAT FB
www.ti.com

6 Device Options

TLV61220
SLVSB53A –MAY 2012–REVISED DECEMBER 2014
T
A
–40°C to 85°C Adjustable 6-Pin SOT-23 TLV61220DBV
OUTPUT VOLTAGE
DC/DC
PACKAGE PART NUMBER

7 Pin Configuration and Functions

DBV Package
6 Pins
Top View
Pin Functions
PIN
NAME NO.
EN 3 I Enable input (VBAT enabled, GND disabled) FB 4 I Voltage feedback for programming the output voltage GND 2 — IC ground connection for logic and power SW 1 I Boost and rectifying switch input VBAT 6 I Supply voltage VOUT 5 O Boost converter output
I/O DESCRIPTION
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Product Folder Links: TLV61220
TLV61220
SLVSB53A –MAY 2012–REVISED DECEMBER 2014
www.ti.com

8 Specifications

8.1 Absolute Maximum Ratings

over operating free-air temperature range (unless otherwise noted)
V
IN
T
J
T
stg
(1) Stresses beyond those listed under Absolute Maximum Ratings may cause permanent damage to the device. These are stress ratings
only, which do not imply functional operation of the device at these or any other conditions beyond those indicated under Recommended Operating Conditions. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.
Input voltage on VBAT, SW, VOUT, EN, FB –0.3 7.5 V Operating junction temperature –40 150 °C Storage temperature –65 150 °C

8.2 ESD Ratings

Human-body model (HBM), per ANSI/ESDA/JEDEC JS-001
V
(ESD)
Electrostatic discharge V
Charged-device model (CDM), per JEDEC specification JESD22- ±1500
(2)
C101
(1) JEDEC document JEP155 states that 500-V HBM allows safe manufacturing with a standard ESD control process. (2) JEDEC document JEP157 states that 250-V CDM allows safe manufacturing with a standard ESD control process.

8.3 Recommended Operating Conditions

V T T
Supply voltage at VIN 0.7 5.5 V
IN
Operating free air temperature range –40 85 °C
A
Operating virtual junction temperature range –40 125 °C
J
(1)
MIN MAX UNIT
VALUE UNIT
(1)
±2000
MIN NOM MAX UNIT

8.4 Thermal Information

TLV61220
THERMAL METRIC
R
θJA
R
θJC(top)
R
θJB
ψ
JT
ψ
JB
R
θJC(bot)
Junction-to-ambient thermal resistance 185.7 Junction-to-case (top) thermal resistance 124.3 Junction-to-board thermal resistance 31.3 Junction-to-top characterization parameter 22.9 Junction-to-board characterization parameter 30.8 Junction-to-case (bottom) thermal resistance N/A
(1) For more information about traditional and new thermal metrics, see the IC Package Thermal Metrics application report, SPRA953.
(1)
DBV UNIT
6 PINS
°C/W
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TLV61220
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SLVSB53A –MAY 2012–REVISED DECEMBER 2014

8.5 Electrical Characteristics

over recommended free-air temperature range and over recommended input voltage range (typical at an ambient temperature range of 25°C) (unless otherwise noted)
PARAMETER TEST CONDITIONS MIN TYP MAX UNIT
DC/DC STAGE
V
IN
V
IN
V
OUT
V
FB
I
LH
I
SW
R
DS(on)
I
Q
I
SD
I
LKG
I
FB
I
EN
CONTROL STAGE
V
IL
V
IH
V
IL
V
IH
V
UVLO
Input voltage range 0.7 5.5 V Minimum input voltage at startup R TLV61220 output voltage range VIN< V
≥ 150 Ω 0.7 V
Load
OUT
1.8 5.5 V TLV61220 feedback voltage 483 500 513 mV Inductor current ripple 200 mA
V
= 3.3 V, VIN= 1.2 V, TA= 25 °C 220 400 mA
OUT
switch current limit V
Rectifying switch on resistance, HSD
Main switch on resistance, LSD
Line regulation VIN< V Load regulation VIN< V
V
Quiescent current
Shutdown current
IN
V
OUT
V
IN
Leakage current into VOUT VEN= 0 V, VIN= 1.2 V, V Leakage current into SW VEN= 0 V, VIN= 1.2 V, VSW= 1.2 V, V TLV61220 Feedback input
current
= 3.3 V, TA= -40°C to 85 °C 180 400 mA
OUT
V
= 3.3 V, TA= 0°C to 85 °C 200 400 mA
OUT
V
= 3.3 V 1000 mΩ
OUT
V
= 5 V 700 mΩ
OUT
V
= 3.3 V 600 mΩ
OUT
V
= 5 V 550 mΩ
OUT
OUT OUT
IO= 0 mA, VEN= VIN= 1.2 V, V
VEN= 0 V, VIN= 1.2 V, V
OUT
OUT
= 3.3 V
OUT
≥ V
IN
= 3.3 V 1 μA
≥ V
OUT
IN
0.5%
0.5%
0.5 0.9 μA 5 7.5 μA
0.2 0.5 μA
0.01 0.2 μA
VFB= 0.5 V 0.01 μA
EN input current Clamped on GND or VIN(VIN< 1.5 V) 0.005 0.1 μA
EN input low voltage VIN≤ 1.5 V V
EN input high voltage VIN≤ 1.5 V V
0.8 × V
IN
0.2 × V
IN
EN input low voltage 5 V > VIN> 1.5 V 0.4 V EN input high voltage 5 V > VIN> 1.5 V 1.2 V Undervoltage lockout threshold
for turn off
VINdecreasing 0.5 0.7 V
Overvoltage protection threshold 5.5 7.5 V Overtemperature protection 140 °C Overtemperature hysteresis 20 °C
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Product Folder Links: TLV61220
0
10
20
30
40
50
60
70
80
90
100
0.01 0.1 1 10 100
G000
Output Current - mA
Efficiency- %
V=0.7V
I
V=1.2V
I
V=1.5V
I
V =1.8V
o
Input Voltage - V
Output Current - A
Minimum I
SW
I =380mA
SW
0
0.03
0.06
0.09
0.12
0.15
0.18
0.21
0.24
0.27
1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5
Input Voltage - V
Output Current - A
Minimum I
SW
0
0.02
0.04
0.06
0.08
0.1
0.12
0.14
0.16
0.9 1.0 1.1 1.2 1.3 1.4
I =330mA
SW
Input Voltage - V
Output Current - A
Minimum I
SW
I =400mA
SW
0
0.03
0.06
0.09
0.12
0.15
0.18
0.21
0.24
0.27
0.7 1.2 1.7 2.2 2.7 3
TLV61220
SLVSB53A –MAY 2012–REVISED DECEMBER 2014
www.ti.com

8.6 Typical Characteristics

Table 1. Table of Graphs
FIGURE
Input Voltage, ISW= 330 mA, Minimum ISW= 200 mA, VO= 1.8V Figure 1
Output Current Input Voltage, ISW= 400 mA, Minimum ISW= 200 mA, VO= 3.3V Figure 2
Input Voltage, ISW= 380 mA, Minimum ISW= 200 mA, VO= 5V Figure 3 vs Output Current, VO= 1.8 V, VI= [0.7 V; 1.2 V; 1.5 V] Figure 4
Efficiency vs Output Current, VO= 3.3 V, VI= [0.7 V; 1.2 V; 2.4V; 3V] Figure 5
vs Output Current, VO= 5 V, VI= [0.7 V; 1.2 V; 3.6V; 4.2V] Figure 6 vs Input Voltage, VO= 1.8 V, IO= [100µA; 1mA ; 10mA; 50mA] Figure 7
Efficiency vs Input Voltage, VO= 3.3 V, IO= [100µA; 1mA ; 10mA; 50mA] Figure 8
vs Input Voltage, VO= 5 V, IO= [100µA; 1mA ; 10mA; 50mA] Figure 9
Output Voltage
vs Output Current, VO= 1.8 V, VI= [0.7 V; 1.2 V] Figure 10 vs Output Current, VO= 3.3 V, VI= [0.7 V; 1.2 V; 2.4 V] Figure 11
VO= 1.8 V
Figure 1. Maximum Output Current vs Input Voltage
6 Submit Documentation Feedback Copyright © 2012–2014, Texas Instruments Incorporated
VO= 5 V
Figure 3. Maximum Output Current vs Input Voltage
VO= 3.3 V
Figure 2. Maximum Output Current vs Input Voltage
Figure 4. Efficiency vs Output Current and Input Voltage
Product Folder Links: TLV61220
1.7
1.8
1.8
1.9
1.9
0.01 0.1 1 10 100
Output Current - mA
Output Voltage - V
V=0.7V
I
V=0.7V
I
V=0.7V
I
V=1.2V
I
V=0.7V
I
V =1.8V
o
Input Voltage - V
Efficiency - %
Io=100 A:
Io=50mA
Io=1mA
0
10
20
30
40
50
60
70
80
90
100
0.7 1.7 2.7 3.7 4.7 5.7
Io=1mA
Vo=5V
Io=50mA
Io=1mA
Io=10mA
Io=100 A:
Vo=1.8V
Input Voltage - V
Efficiency - %
0
10
20
30
40
50
60
70
80
90
100
0.7 0.9 1.1 1.3 1.5 1.7 1.9
Input Voltage - V
Efficiency - %
0
10
20
30
40
50
60
70
80
90
100
0.7 1.2 1.7 2.2 2.7 3.2 3.7
Io=100 A:
Io=50mA
Io=1mA
Io=10mA
Vo=3.3V
0
10
20
30
40
50
60
70
80
90
100
0.01 0.1 1 10 100
G000
Output Current - mA
Efficiency- %
V=0.7V
I
V=2.4V
I
V=0.7V
I
V=3V
I
V=1.2V
I
V =3.3V
o
0
10
20
30
40
50
60
70
80
90
100
0.01 0.1 1 10 100
G000
Output Current - mAOutput Current - mA
Efficiency - %
V=0.7V
I
V=0.7V
I
V=0.7V
I
V=3.6V
I
V=0.7V
I
V=0.7V
I
V=0.7V
I
V=4.2V
I
V=0.7V
I
V=0.7V
I
V=0.7V
I
V=1.2V
I
V =5V
o
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SLVSB53A –MAY 2012–REVISED DECEMBER 2014
Figure 5. Efficiency vs Output Current and Input Voltage Figure 6. Efficiency vs Input Voltage and Output Current
TLV61220
Figure 7. Efficiency vs Input Voltage and Output Current Figure 8. Efficiency vs Input Voltage and Output Current
Figure 9. Efficiency vs Input Voltage and Output Current
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Figure 10. Output Voltage vs Output Current and Input
Voltage
Product Folder Links: TLV61220
Output Current - mA
Output Voltage - V
3.1
3.2
3.3
3.4
3.5
0.01 0.1 1 10 100
V=0.7V
I
V=1.2V
I
V=2.4V
I
V =3.3V
o
TLV61220
SLVSB53A –MAY 2012–REVISED DECEMBER 2014
Figure 11. Output Voltage vs Output Current and Input Voltage
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