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PDF TS30111 Data sheet ( Hoja de datos )
| Número de pieza | TS30111 | |
| Descripción | High Efficiency 700mA Current-Mode Synchronous Buck DC/DC Regulator | |
| Fabricantes | Semtech | |
| Logotipo |  |
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TS30111
High Efficiency 700mA Current-Mode
Synchronous Buck DC/DC Regulator, 1MHz
TRIUNE PRODUCTS
Features
• Fixed output voltage choices: 1.5V, 1.8V, 2.5V, 3.3V, and 5V
Adjustable version output voltage range: 0.8V to 5V
• Wide input voltage range 4.5V to 16V (18V Abs Max)
• 1MHz +/- 10% fixed switching frequency
• Continuous output current: 700mA
• High efficiency – up to 90%
• Current mode PWM control with PFM mode for improved
light load efficiency
• Voltage supervisor for VOUT reported at the PG pin
• Input supply under voltage lockout
• Soft start for controlled startup with no overshoot
• Full protection for over-current, over-temperature, and
VOUT over-voltage
• Less than 10uA in standby mode
• Low external component count
Summary Specification
• Junction operating temperature -40 °C to 125 °C
• Packaged in a 16pin QFN (3x3)
Description
The TS30111 is a DC/DC synchronous switching regulator with
fully integrated power switches, internal compensation, and
full fault protection. The switching frequency of 1MHz enables
the use of small filter components resulting in minimal board
space and reduced BOM costs.
The TS30111 utilizes current mode feedback in normal
regulation PWM mode. When the regulator is placed in
standby (EN is low), the device draws less than 10uA quiescent
current.
The TS30111 integrates a wide range of protection circuitry
including input supply under-voltage lockout, output voltage
soft start, current limit, and thermal shutdown.
The TS30111 includes supervisory reporting through the
PG (Power Good) open drain output to interface other
components in the system.
Applications
• On-card switching regulators
• Set-top box, DVD, LCD, LED supply
• Industrial power supplies
Typical Applications
VCC
CBYPASS
EN
Adjustable Output
VCC
BST
VSW
FB
EN
PG
CBST
LOUT
RTOP
RBOT
VOUT
COUT
VOUT
10 kohm
(optional)
PG
VCC
EN
Fixed Output
VCC
BST
VSW
FB
EN
PG
VOUT
VOUT
10 kohm
(optional)
PG
TS30111
Final Datasheet
June 2, 2015
Rev 1.0
www.semtech.com
1 of 21
Semtech
1 page  
Electrical Characteristics
Electrical characteristics, TJ = -40C to 125C, VCC = 12V (unless otherwise noted)
Symbol
Parameter
Condition
Min Typ Max Unit
VCC Supply Voltage
VCC Input Supply Voltage
4.5 16 V
ICC-NORM
ICC-NOSWITCH
ICC-STBY
Quiescent current
Normal Mode
Quiescent current
Normal Mode – Non-switching
Quiescent current
Standby Mode
VCC = 12V, ILOAD = 0A
VCC=12V, ILOAD=0A, Non-switching
VCC = 12V, VEN = 0V
5.2 mA
2.3 mA
5 10 uA
VCC Under Voltage Lockout
VCC-UV
VCC-UV_HYST
Input Supply Under Voltage
Threshold
Input Supply Under Voltage
Threshold Hysteresis
VCC Increasing
4.3 V
650 mV
OSC
fOSC
PG Open Drain Output
Oscillator Frequency
1 MHz
tPG PG Release Timer
IOH-PG
High-Level Output Leakage
VOL-PG
Low-Level Output Voltage
EN/nLP Input Voltage Thresholds
VPG=5V
IPG = -0.3mA
10 ms
0.5 uA
0.01 V
VIH-EN
VIL-EN
VHYST-EN
IIN-EN
Thermal Shutdown
TSD
TSDHYST
High Level Input Voltage
Low Level Input Voltage
Input Hysteresis
EN Input Leakage
Thermal Shutdown Junction
Temperature
TSD Hysteresis
VEN=5V
VEN=0V
2.2 V
0.8 V
480 mV
3.5 uA
-1.5 uA
Note: not tested in production 150 170
Note: not tested in production
10
°C
°C
TS30111
Final Datasheet
June 2, 2015
Rev 1.0
www.semtech.com
5 of 21
Semtech
5 Page 
Version 1.0
Figure
12.
Efficiency
vs.
Output
Current
(
VOUT
=
5V)
Typical Performance Characteristics
Figure
13.
Efficiency
vs.
Input
Voltage
(VOUT
=
3.3V)
VCTCY=P12IVC, CAOULT =P2Ex 2R2uFFO(uRnleMss AotNherCwEise CnoHtedA) RACTERISTICS
Figure 14. Standby Current vs. Input Voltage
3.310
3.305
3.300
Iout=30mA
3.295
3.290
Iout=300mA
3.285
3.280
-‐50
0
50
100
150
Temperature (°C)
Figure 16. Output Voltage vs. Temperature
6.00
5.50
5.00
4.50
4.00
-‐50
0
50
100
150
Temperature (°C)
Figure 18. Quiescent Current vs. Temperature (No load)
7.0
6.5
6.0
5.5
5.0
4.5
4.0
-‐50
0
50
100
Temperature (°C)
Figure 15. Standby Current vs. Temperature
150
1.05
1.03
1.01
0.99
0.97
0.95
-‐50
0
50
100
150
Temperature (°C)
Figure 17. Oscillator Frequency vs. Temperature (IOUT=300mA)
2
1.98
1.96
1.94
1.92
1.9
1.88
1.86
1.84
-‐50
0
50
100
Temperature (°C)
150
Figure 19. Input Current vs. Temperature (No load, No switching)
Specifications subject to change
TS30111
Final Datasheet
June 2, 2015
Rev 1.0
WWW.TRIUNESYSTEMS.COM
12
www.semtech.com
Copyright © 2012, Triune Systems, LLC
11 of 21
Semtech
11 Page | ||
| Páginas | Total 21 Páginas | |
| PDF Descargar | [ Datasheet TS30111.PDF ] | |
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