TS30013-M025 [SEMTECH]

High Efficiency 1A/2A/3A Current-Mode Synchronous Buck DC/DC Converter, 1MHz;
TS30013-M025
型号: TS30013-M025
厂家: SEMTECH CORPORATION    SEMTECH CORPORATION
描述:

High Efficiency 1A/2A/3A Current-Mode Synchronous Buck DC/DC Converter, 1MHz

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TS30011/12/13  
High Efficiency 1A/2A/3A Current-Mode  
Synchronous Buck DC/DC Converter, 1MHz  
TRIUNE PRODUCTS  
Features  
Description  
Fixed output voltage choices: 1.5V, 1.8V, 2.5V, 3.3V, and 5V  
with +/- 2% output tolerance  
Adjustable version output voltage range: 0.9V to (VCC –  
1V) with +/-1.5% reference.  
Wide input voltage range  
The TS30011 (1A), TS30012 (2A) and TS30013 (3A) are 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.  
Œ
Œ
TS30011/12: 4.5V to 24V (26.4V Abs Max  
TS30013: 4.5V to 18V (20V Abs Max)  
1MHz +/- 10% fixed switching frequency  
Continuous output current: 1A (TS30011), 2A (TS30012)  
and 3A (TS30013)  
High efficiency – up to 95%  
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  
The TS30011/12/13 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 TS30011/12/13 integrates a wide range of protection  
circuitry including input supply under-voltage lockout, output  
voltage soft start, current limit, and thermal shutdown.  
The TS30011/12/13 includes supervisory reporting through  
the PG (Power Good) open drain output to interface other  
components in the system.  
Summary Specification  
Junction operating temperature -40 °C to 125 °C  
Packaged in a 16pin QFN (3x3)  
Applications  
On-card switching regulators  
Set-top box, DVD, LCD, LED supply  
Industrial power supplies  
Typical Application Circuit  
TS30011/12/13  
Final Datasheet  
August 24, 2015  
1 of 18  
www.semtech.com  
Rev 1.7  
Semtech  
Pin Configuration  
Figure 1: 16 Lead 3x3 QFN, Top View  
Pin Description  
Pin # Pin Symbol Function  
Description  
Switching Voltage Node Connected to 4.7uH (typical) inductor  
1
2
3
4
VSW  
VCC  
VCC  
GND  
Input Voltage  
Input Voltage  
GND  
Input voltage  
Input voltage  
Primary ground for the majority of the device except the low-side power FET  
Regulator FB Voltage. Connects to VOUT for fixed mode and the output  
resistor divider for adjustable mode  
Feedback Input  
5
FB  
No Connect  
Not Connected  
Not Connected  
Open-drain output  
6
7
8
NC  
NC  
PG  
No Connect  
Power Good Output  
Above 2.2V the device is enabled. GND the pin to put device in standby  
mode. Includes internal pull-up  
Enable Input  
9
EN  
Bootstrap capacitor for the high-side FET gate driver. A ceramic capacitor in  
the range 15 nF - 200 nF from BST pin to VSW pin  
Bootstrap Capacitor  
Input Voltage  
10  
BST  
Input Voltage  
11  
12  
13  
14  
15  
16  
17  
VCC  
Switching Voltage Node Connected to 4.7uH (typical) inductor  
Switching Voltage Node Connected to 4.7uH (typical) inductor  
VSW  
VSW  
PGND  
PGND  
VSW  
PAD  
Power GND  
Power GND  
GND supply for internal low-side FET/integrated diode  
GND supply for internal low-side FET/integrated diode  
Switching Voltage Node Connected to 4.7uH (typical) inductor  
Power PAD  
Power GND  
TS30011/12/13  
Final Datasheet  
August 24, 2015  
2 of 18  
www.semtech.com  
Rev 1.7  
Semtech  
Functional Block Diagrams  
Figure 2: TS30011/12/13 Block Diagram  
Figure 3: Monitor & Control Logic Functionality  
TS30011/12/13  
Final Datasheet  
August 24, 2015  
3 of 18  
www.semtech.com  
Rev 1.7  
Semtech  
Absolute Maximum Ratings  
Over operating free–air temperature range unless otherwise noted(1, 2)  
Parameter  
Value  
Units  
VCC  
BST  
-0.3 to 26.4 (-0.3 to 20 for TS30013)  
-0.3 to (VCC+6)  
V
V
V
VSW  
-1 to 26.4 (-1 to 20 for TS30013)  
EN, PG,FB  
-0.3 to 6  
+/-2k  
V
Electrostatic Discharge – Human Body Model  
Electrostatic Discharge – Charge Device Model  
Lead Temperature (soldering, 10 seconds)  
V
+/-500  
260  
V
OC  
(1) Stresses beyond those listed under “absolute maximum ratingsmay cause permanent damage to the device. These are stress ratings only and functional  
operation of the device at these or any other conditions beyond those indicated under “recommended operating conditionsis not implied. Exposure to  
absolute–maximum–rated conditions for extended periods may affect device reliability.  
(2) All voltage values are with respect to network ground terminal.  
Thermal Characteristics  
Parameter  
Symbol Value  
Units  
Thermal Resistance Junction to Air (Note 1)  
Thermal Resistance Junction to Case (Note 1)  
Storage Temperature Range  
θJA  
34.5  
OC/W  
OC/W  
OC  
θJC  
2.5  
TSTG  
TJ MAX  
-65 to 150  
150  
Maximum Junction Temperature  
OC  
Operating junction Temperature Range  
TJ  
-40 to 125  
OC  
Note 1: Assumes 16LD 3x3 QFN with hi-K JEDEC board and 13.5 inch2 of 1 oz Cu and 4 thermal vias connected to PAD  
Recommended Operating Conditions  
Parameter  
Symbol Min  
Type  
Max  
Units  
Input Operating Voltage  
VCC  
4.5  
15  
3.76  
33  
2
12  
22  
24 (18 for TS30013)  
V
nF  
Bootstrap Capacitor  
CBST  
200  
Output Filter Inductor Typical Value (Note 1)  
Output Filter Capacitor Typical Value (Note 2)  
Output Filter Capacitor ESR  
LOUT  
4.7  
5.64  
uH  
uF  
COUT  
44 (2 x 22)  
COUT-ESR  
CBYPASS  
100  
mΩ  
uF  
Input Supply Bypass Capacitor Typical Value (Note 3)  
8
10  
Note 1: For best performance, an inductor with a saturation current rating higher than the maximum VOUT load requirement plus the inductor current ripple.  
Note 2: For best performance, a low ESR ceramic capacitor should be used.  
Note 3: For best performance, a low ESR ceramic capacitor should be used. If CBYPASS is not a low ESR ceramic capacitor, a 0.1uF ceramic capacitor should be  
added in parallel to CBYPASS  
TS30011/12/13  
Final Datasheet  
August 24, 2015  
4 of 18  
Semtech  
www.semtech.com  
Rev 1.7  
Electrical Characteristics  
Electrical Characteristics, TJ = -40C to 125C, VCC = 12V (unless otherwise noted)  
Parameter  
Symbol Conditions  
Min. Typ. Max. Units  
VCC Supply Voltage  
24  
Input Supply Voltage  
VCC  
4.5  
(18 for  
V
TS30013)  
Quiescent current Normal Mode  
Quiescent current Normal Mode  
– Non-switching  
ICC-NORM  
VCC = 12V, ILOAD = 0A  
5.2  
2.3  
5
mA  
mA  
μA  
ICC-NOSWITCH VCC=12V, ILOAD=0A, Non-switching  
Quiescent current Standby Mode  
ICC-STBY  
VCC = 12V, EN = 0V  
VCC Increasing  
10  
VCC Under Voltage Lockout  
Input Supply Under Voltage Threshold  
VCC-UV  
4.3  
4.5  
V
Input Supply Under Voltage Threshold  
Hysteresis  
VCC-UV_HYST  
350  
mV  
OSC  
Oscillator Frequency  
PG Open Drain Output  
fOSC  
0.9  
1
1.1  
MHz  
PG Release Timer  
tPG  
10  
ms  
μA  
V
High-Level Output Leakage  
Low-Level Output Voltage  
IOH-PG  
VOL-PG  
VPG = 5V  
0.5  
IPG = -0.3mA  
0.01  
0.8  
EN Input Voltage Thresholds  
High Level Input Voltage  
Low Level Input Voltage  
Input Hysteresis  
VIH-EN  
2.2  
V
V
VIL-EN  
VHYST-EN  
480  
3.5  
mV  
μA  
μA  
VEN=5V  
VEN=0V  
Input Leakage  
IIN-EN  
-1.5  
Thermal Shutdown  
Thermal Shutdown Junction Temperature TSD  
Note: not tested in production  
Note: not tested in production  
150  
170  
10  
°C  
°C  
TSD Hysteresis  
TSDHYST  
TS30011/12/13  
Final Datasheet  
August 24, 2015  
5 of 18  
www.semtech.com  
Rev 1.7  
Semtech  
Regulator Characteristics  
Electrical Characteristics, TJ = -40C to 125C, VCC = 12V (unless otherwise noted)  
Parameter  
Symbol Conditions  
Min.  
Typ.  
Max.  
Units  
Switch Mode Regulator: L=4.7uH and C=2 x 22uF  
Output Voltage Tolerance in PWM Mode VOUT-PWM  
ILOAD =1A  
VOUT – 2%  
VOUT – 1%  
VOUT  
VOUT + 1%  
180  
VOUT + 2%  
VOUT + 3%  
V
V
Output Voltage Tolerance in PFM Mode  
High Side Switch On Resistance  
Low Side Switch On Resistance  
VOUT-PFM  
ILOAD = 0A  
IVSW = -1A (Note 1)  
IVSW = 1A (Note 1)  
TS30013 (Note 4)  
TS30012 (Note 4)  
TS30011  
mΩ  
mΩ  
A
RDSON  
120  
3
2
Output Current  
IOUT  
A
1
A
TS30013  
3.4  
2.4  
3.8  
2.8  
1.8  
0.9  
4.4  
3.4  
2.4  
0.914  
1.5  
A
Over Current Detect  
(High Side Switch Current)  
IOCD  
TS30012  
A
TS30011  
1.4  
A
Feedback Reference (Adjustable Mode)  
Feedback Reference Tolerance  
Soft start Ramp Time  
FBTH  
(Note 3)  
0.886  
-1.5  
V
FBTH-TOL  
tSS  
(Note 3)  
%
ms  
V
4
PFM Mode FB Comparator Threshold  
VOUT Under Voltage Threshold  
VOUT Under Voltage Hysteresis  
FBTH-PFM  
VOUT-UV  
VOUT-UV_HYST  
VOUT + 1%  
93% VOUT  
1.5% VOUT  
91% VOUT  
95% VOUT  
VOUT Over Voltage Threshold  
VOUT-OV  
103% VOUT  
VOUT Over Voltage Hysteresis  
Max Duty Cycle  
VOUT-OV_HYST  
DUTYMAX  
1% VOUT  
97%  
(Note 2)  
95%  
99%  
Note 1: RDSON is characterized at 1A and tested at lower current in production.  
Note 2: Regulator VSW pin is forced off for 240ns every 8 cycles to ensure the BST cap is replenished.  
Note 3: For the adjustable version, the ratio of VCC/Vout cannot exceed 16.  
Note 4: Based on Over Current Detect testing  
TS30011/12/13  
Final Datasheet  
August 24, 2015  
6 of 18  
www.semtech.com  
Rev 1.7  
Semtech  
Functional Description  
Detailed Pin Description  
The TS30011/12/13 current-mode synchronous step-down  
power supply product is ideal for use in the commercial,  
industrial, and automotive market segments. It includes  
flexibility to be used for a wide range of output voltages and  
is optimized for high efficiency power conversion with low  
RDSON integrated synchronous switches. A 1MHz internal  
switching frequency facilitates low cost LC filter combinations.  
Additionally, the fixed output versions enable a minimum  
external component count to provide a complete regulation  
solution with only 4 external components: an input bypass  
capacitor, an inductor, an output capacitor, and the bootstrap  
capacitor. The regulator automatically transitions between  
PFM and PWM mode to maximize efficiency for the load  
demand.  
Unregulated input, VCC  
This terminal is the unregulated input voltage source for the  
IC. It is recommended that a 10uF bypass capacitor be placed  
close to the device for best performance. Since this is the main  
supply for the IC, good layout practices need to be followed for  
this connection.  
Bootstrap control, BST  
This terminal will provide the bootstrap voltage required for  
the upper internal NMOS switch of the buck regulator. An  
external ceramic capacitor placed between the BST input  
terminal and the VSW pin will provide the necessary voltage  
for the upper switch. In normal operation the capacitor is  
re-charged on every low side synchronous switching action.  
In the case of where the switch mode approaches 100% duty  
cycle for the high side FET, the device will automatically reduce  
the duty cycle switch to a minimum off time on every 8th cycle  
to allow this capacitor to re-charge.  
The TS30011/12/13 was designed to provide these system  
benefits:  
Reduced board real estate  
Lower system cost  
Sense feedback, FB  
This is the input terminal for the output voltage feedback.  
Œ
Œ
Lower cost inductor  
Low external parts count  
Ease of design  
For the fixed mode versions, this should be hooked directly  
to VOUT. The connection on the PCB should be kept as short  
as possible, and should be made as close as possible to the  
capacitor. The trace should not be shared with any other  
connection. (Figure 23)  
Œ
Œ
Œ
Œ
Bill of Materials and suggested board layout provided  
Power Good output  
Integrated compensation network  
Wide input voltage range  
Robust solution  
Over current, over voltage and over temperature  
protection  
Œ
For adjustable mode versions, this should be connected to  
the external resistor divider. To choose the resistors, use the  
following equation:  
VOUT = 0.9 (1 + RTOP/RBOT  
)
The input to the FB pin is high impedance, and input current  
should be less than 100nA. As a result, good layout practices  
are required for the feedback resistors and feedback traces.  
When using the adjustable version, the feedback trace should  
be kept as short as possible and minimum width to reduce  
stray capacitance and to reduce the injection of noise.  
For the adjustable version, the ratio of VCC/VOUT cannot  
exceed 16.  
TS30011/12/13  
Final Datasheet  
August 24, 2015  
7 of 18  
www.semtech.com  
Rev 1.7  
Semtech  
Internal Protection Details  
Switching output, VSW  
Internal Current Limit  
This is the switching node of the regulator. It should be  
connected directly to the 4.7uH inductor with a wide, short  
trace and to one end of the Bootstrap capacitor. It is switching  
between VCC and PGND at the switching frequency.  
The current through the high side FET is sensed on a cycle  
by cycle basis and if current limit is reached, it will abbreviate  
the cycle. In addition, the device senses the FB pin to identify  
hard short conditions and will direct the VSW output to skip 4  
cycles if current limit occurs when FB is low. This allows current  
built up in the inductor during the minimum on time to decay  
sufficiently. Current limit is always active when the regulator  
is enabled. Soft start ensures current limit does not prevent  
regulator startup.  
Ground, GND  
This ground is used for the majority of the device including the  
analog reference, control loop, and other circuits.  
Power Ground, PGND  
This is a separate ground connection used for the low side  
synchronous switch to isolate switching noise from the rest of  
the device. (Figure 23)  
Under extended over current conditions (such as a short),  
the device will automatically disable. Once the over current  
condition is removed, the device returns to normal operation  
automatically. (Alternately the factory can configure the  
device’s NVM to shutdown the regulator if an extended over  
current event is detected and require a toggle of the Enable  
pin to return the device to normal operation.)  
Enable, high-voltage, EN  
This is the input terminal to activate the regulator. The input  
threshold is TTL/CMOS compatible. It also has an internal pull-  
up to ensure a stable state if the pin is disconnected.  
Thermal Shutdown  
Power Good Output, PG  
If the temperature of the die exceeds 170°C (typical), the VSW  
outputs will tri-state to protect the device from damage. The  
PG and all other protection circuitry will stay active to inform  
the system of the failure mode. Once the device cools to 160°C  
(typical), the device will start up again, following the normal  
soft start sequence. If the device reaches 170°C, the shutdown/  
restart sequence will repeat.  
This is an open drain, active low output. The switched mode  
output voltage is monitored and the PG line will remain low  
until the output voltage reaches the VOUT-UV threshold.  
Once the internal comparator detects the output voltage  
is above the desired threshold, an internal delay timer is  
activated and the PG line is de-asserted to high once this  
delay timer expires. In the event the output voltage decreases  
below VOUT-UV, the PG line will be asserted low and remain  
low until the output rises above VOUT-UV and the delay timer  
times out. See Figure 2 for the circuit schematic for the PG  
signal.  
Reference Soft Start  
The reference in this device is ramped at a rate of 4ms to  
prevent the output from overshoot during startup. This ramp  
restarts whenever there is a rising edge sensed on the Enable  
pin. This occurs in both the fixed and adjustable versions.  
During the soft start ramp, current limit is still active, and will  
still protect the device in case of a short on the output.  
Output Overvoltage  
If the output of the regulator exceeds 103% of the regulation  
voltage, the VSW outputs will tri-state to protect the device  
from damage. This check occurs at the start of each switching  
cycle. If it occurs during the middle of a cycle, the switching  
for that cycle will complete, and the VSW outputs will tri-state  
at the beginning of the next cycle.  
VCC Under-Voltage Lockout  
The device is held in the off state until VCC reaches 4.5V  
(typical). There is a 500mV hysteresis on this input, which  
requires the input to fall below 4.0V (typical) before the device  
will disable.  
TS30011/12/13  
Final Datasheet  
August 24, 2015  
8 of 18  
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Rev 1.7  
Semtech  
Typical Performance Characteristics  
TJ = -40C to 125C, VCC = 12V (unless otherwise noted)  
Figure 4. Startup Response  
Figure 6. 100mA to 2A Load (VCC=12V, VOUT=1.8V)  
Figure 8. 100mA to 2A Load Step (VCC=12V, VOUT=3.3V)  
TS30011/12/13  
Figure 5. 100mA to 1A Load Step (VCC=12V, VOUT=1.8V)  
Figure 7. 100mA to 1A Load Step (VCC=12V, VOUT=3.3V)  
Figure 9. Line Transient Response (VCC=12V, VOUT=3.3V)  
9 of 18  
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Final Datasheet  
August 24, 2015  
Rev 1.7  
Typical Performance Characteristics continued  
TJ = -40C to 125C, VCC = 12V (unless otherwise noted)  
Figure 10. Load Regulation  
Figure 11. Line Regulation (IOUT=1A)  
Figure 12. Efficiency vs. Output Current ( VOUT = 1.8V)  
Figure 13. Efficiency vs. Output Current ( VOUT = 3.3V)  
Figure 14. Efficiency vs. Output Current ( VOUT = 5V)  
Figure 15. Efficiency vs. Input Voltage (VOUT = 3.3V)  
TS30011/12/13  
Final Datasheet  
August 24, 2015  
10 of 18  
Semtech  
www.semtech.com  
Rev 1.7  
Typical Performance Characteristics continued  
TJ = -40C to 125C, VCC = 12V (unless otherwise noted)  
Figure 16. Standby Current vs. Input Voltage  
Figure 18. Output Voltage vs. Temperature  
Figure 20. Quiescent Current vs. Temperature (No load)  
TS30011/12/13  
Figure 17. Standby Current vs. Temperature  
Figure 19. Oscillator Frequency vs. Temperature (IOUT=300mA)  
Figure 21. Input Current vs. Temperature (No load, No switching)  
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Final Datasheet  
August 24, 2015  
Rev 1.7  
Semtech  
Typical Application Schematic  
BST  
CBST  
VCC  
VCC  
22nF  
VOUT  
2.5V  
VSW  
LOUT  
4.7uH  
CBYPASS2  
0.1uF  
CBYPASS  
10uF 35V  
COUT2  
COUT1  
(optional)  
22uF 10V  
22uF 10V  
RTOP  
17.8K  
VOUT  
FB  
EN  
EN  
RBOT  
10K  
RPUP  
10K  
(optional)  
PG  
PG  
Figure 22: TS30011/12/13 Application Schematic  
A minimal schematic suitable for most applications is shown on page 1. Figure 22 includes optional components that may be  
considered to address specific issues as listed in the External Component Selection section.  
PCB Layout  
For proper operation and minimum EMI, care must be taken during PCB layout. An improper layout can lead to issues such as poor  
stability and regulation, noise sensitivity and increased EMI radiation. (figure 23) The main guidelines are the following:  
provide low inductive and resistive paths for loops with high di/dt,  
provide low capacitive paths with respect to all the other nodes for traces with high di/dt,  
sensitive nodes not assigned to power transmission should be referenced to the analog signal ground (GND) and be always  
separated from the power ground (PGND).  
The negative ends of CBYPASS, COUT and the Schottky diode DCATCH (optional) should be placed close to each other and  
connected using a wide trace. Vias must be used to connect the PGND node to the ground plane. The PGND node must be placed  
as close as possible to the TS30011/12/13 PGND pins to avoid additional voltage drop in traces.  
The bypass capacitor CBYPASS (optionally paralleled to a 0.1µF capacitor) must be placed close to the VCC pins of TS30011/12/13.  
The inductor must be placed close to the VSW pins and connected directly to COUT in order to minimize the area between the  
VSW pin, the inductor, the COUT capacitor and the PGND pins. The trace area and length of the switching nodes VSW and BST  
should be minimized.  
For the adjustable output voltage version of the TS30011/12/13, feedback resistors RBOT and RTOP are required for Vout settings  
greater than 0.9V and should be placed close to the TS30011/12/13 in order to keep the traces of the sensitive node FB as short as  
possible and away from switching signals. RBOT should be connected to the analog ground pin (GND) directly and should never  
be connected to the ground plane. The analog ground trace (GND) should be connected in only one point to the power ground  
(PGND). A good connection point is under the TS30011/12/13 package to the exposed thermal pad and vias which are connected  
to PGND. RTOP will be connected to the VOUT node using a trace that ends close to the actual load.  
For fixed output voltage versions of the TS30011/12/13, RBOT and RTOP are not required and the FB pin should be connected  
directly to the Vout.  
TS30011/12/13  
Final Datasheet  
August 24, 2015  
12 of 18  
Semtech  
www.semtech.com  
Rev 1.7  
The exposed thermal pad must be soldered to the PCB for mechanical reliability and to achieve good power dissipation. Vias must  
be placed under the pad to transfer the heat to the ground plane.  
Figure 23: TS30011/12/13 PCB Layout, Top View  
External Component Bill of Materials  
Suggested  
Designator Function  
Description  
Manufacturer Code  
CGA5L3X5R1V106K160AB  
C2012X5R1A226K125AB  
Qty  
Manufacturer  
Input Supply Bypass  
10uF 10%  
35V  
CBYPASS  
COUT  
LOUT  
TDK  
1
2
1
1
1
1
Capacitor  
22uF 10%  
10V  
Output Filter Capacitor  
TDK  
TDK  
Wurth  
SLF7045T-4R7M2R0-PF  
7447745047  
Output Filter Inductor (1A)  
Output Filter Inductor (2A)  
Output Filter Inductor (3A)  
Boost Capacitor  
4.7uH 2A  
4.7uH 3A  
TDK  
Wurth  
VLC5045T-4R7M  
744774047  
LOUT  
TDK  
Wurth  
VLP6045LT-4R7M  
744777004  
LOUT  
4.7uH 4.37A  
15 nF-200 nF  
10V  
CBST  
TDK  
C1005X7R1C223K  
Note 1: Assumes 16LD 3x3 QFN with hi-K JEDEC board and 13.5 inch2 of 1 oz Cu and 4 thermal vias connected to PAD  
TS30011/12/13  
Final Datasheet  
August 24, 2015  
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Semtech  
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Rev 1.7  
External Component Bill of Materials continued  
Suggested  
Manufacturer  
Designator Function  
Description  
17.8K (Note 1)  
10K (Note 1)  
10K  
Manufacturer Code Qty  
Voltage Feedback Resistor  
(optional)  
RTOP  
1
1
1
Voltage Feedback Resistor  
(optional)  
RBOT  
PG Pin Pull-up Resistor  
(optional)  
RPLP  
30V 2A  
DCATCH  
DCATCH  
DCATCH  
Catch Diode (optional, 1A)  
Catch Diode (optional, 2A)  
Catch Diode (optional, 3A)  
On Semiconductor  
NXP Semiconductors  
NXP Semiconductors  
MBR230LSFT1G  
PMEG4030ER,115  
PMEG4050EP,1  
1
1
1
SOD-123FL  
40V 3A  
SOD-123  
40V 5A  
SOD-123FL  
Note 1:  
The voltage divider resistor values are calculated for an output voltage of 2.5V. For fixed output versions, the FB pin is connected directly to VOUT.  
External Component Selection  
The 1MHz internal switching frequency of the TS30011/12/13 facilitates low cost LC filter combinations. Additionally, the fixed  
output versions enable a minimum external component count to provide a complete regulation solution with only 4 external  
components: an input bypass capacitor, an inductor, an output capacitor, and the bootstrap capacitor. The internal compensation  
is optimized for a 44uF output capacitor and a 4.7uH inductor.  
For best performance, a low ESR ceramic capacitor should be used for CBYPASS. If CBYPASS is not a low ESR ceramic capacitor, a  
0.1uF ceramic capacitor should be added in parallel to CBYPASS.  
The minimum allowable value for the output capacitor is 33uF. To keep the output ripple low, a low ESR (less than 35mOhm)  
ceramic is recommended. Multiple capacitors can be paralleled to reduce the ESR.  
The inductor range is 4.7uH +/-20%. For optimal over-current protection, the inductor should be able to handle up to the  
regulator current limit without saturation. Otherwise, an inductor with a saturation current rating higher than the maximum IOUT  
load requirement plus the inductor current ripple should be used.  
For high current modes, the optional Schottky diode will improve the overall efficiency and reduce the heat. It is up to the user to  
determine the cost/benefit of adding this additional component in the user’s application. The diode is typically not needed.  
For the adjustable output version of the TS30011/12/13, the output voltage can be adjusted by sizing RTOP and RBOT feedback  
resistors. The equation for the output voltage is  
For the adjustable version, the ratio of VCC/Vout cannot exceed 16.  
RPUP is only required when the Power Good signal (PG) is utilized.  
Thermal Information  
TS30011/12/13 is designed for a maximum operating junction temperature Tj of 125°C. The maximum output power is limited by  
the power losses that can be dissipated over the thermal resistance given by the package and the PCB structures. The PCB must  
provide heat sinking to keep the TS30011/12/13 cool. The exposed metal on the bottom of the QFN package must be soldered to  
a ground plane. This ground should be tied to other copper layers below with thermal vias. Adding more copper to the top and  
the bottom layers and tying this copper to the internal planes with vias can reduce thermal resistance further. For a hi-K JEDEC  
TS30011/12/13  
Final Datasheet  
August 24, 2015  
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Rev 1.7  
board and 13.5 square inch of 1 oz Cu, the thermal resistance from junction to ambient can be reduced to θ = 38°C/W. The  
power dissipation of other power components (catch diode, inductor) cause additional copper heating andJAcan further increase  
what the TS30011/12/13 sees as ambient temperature.  
Package Mechanical Drawings (all dimentions in mm)  
Units  
Millimeters  
Dimensions Limits  
MIN  
NOM  
MAX  
Number of Pins  
Pitch  
N
e
16  
0.50 BSC  
0.90  
Overall Height  
Standoff  
A
0.80  
0.00  
1.00  
0.05  
A1  
A3  
D
0.02  
Contact Thickness  
Overall Length  
Exposed Pad Width  
Overall Width  
0.20 REF  
3.00 BSC  
1.70  
E2  
E
1.55  
1.80  
3.00 BSC  
1.70  
Exposed Pad Length  
Contact Width  
Contact Length  
Contact-to-Exposed Pad  
D2  
b
1.55  
0.20  
0.20  
0.20  
1.80  
0.30  
0.40  
-
0.25  
L
0.30  
K
-
TS30011/12/13  
Final Datasheet  
August 24, 2015  
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Rev 1.7  
Recommended PCB Land Pattern  
Dimensions in Millimeters  
Units  
Millimeters  
NOM  
Dimensions Limits  
MIN  
MAX  
Contact Pitch  
E
0.50 BSC  
Optional Center Pad Width  
Optional Center Pad Length  
Contact Pad Spacing  
W2  
T2  
C1  
C2  
X1  
Y1  
G
-
-
1.70  
1.70  
-
-
-
-
3.00  
Contact Pad Spacing  
-
3.00  
-
Contact Pad Width (X16)  
Contact Pad Length (X16)  
Distance Between Pads  
-
-
-
-
-
0.35  
0.65  
-
0.15  
Notes:  
Dimensions and tolerances per ASME Y14.5M.  
BSC: Basic Dimension. Theoretically exact values shown without tolerances.  
REF: Reference Dimension, usually without tolerance, for information only.  
Packaging Information  
Pb-Free (RoHS): The TS30011/12/13 devices are fully compliant for all materials covered by European Union Directive 2011/65/EU  
(RoHS 2), and meet all IPC-1752 Class 5 & 6 materials declaration requirements. These devices are Pb Free, WEEE, and low Halogen.  
MSL, Peak Temp: The TS30011/12/13 family has a Moisture Sensitivity Level (MSL) 1 rating per JEDEC J-STD-020D. These devices  
also have a Peak Profile Solder Temperature (Tp) of 260°C.  
TS30011/12/13  
Final Datasheet  
August 24, 2015  
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Ordering Information  
TS3001x-MvvvQFNR  
x
Output Current  
vvv  
Output Voltage  
1
1 Amp  
2 Amp  
3 Amp  
015  
1.5 V  
2
3
018  
025  
033  
050  
000  
1.8 V  
2.5 V  
3.3 V  
5.0 V  
Adjustable  
TS30011/12/13  
Final Datasheet  
August 24, 2015  
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IMPORTANT NOTICE  
Information relating to this product and the application or design described herein is believed to be reliable, however such information is provided as a  
guide only and Semtech assumes no liability for any errors in this document, or for the application or design described herein. Semtech reserves the right  
to make changes to the product or this document at any time without notice. Buyers should obtain the latest relevant information before placing orders  
and should verify that such information is current and complete. Semtech warrants performance of its products to the specifications applicable at the time  
of sale, and all sales are made in accordance with Semtech’s standard terms and conditions of sale.  
SEMTECH PRODUCTS ARE NOT DESIGNED, INTENDED, AUTHORIZED OR WARRANTED TO BE SUITABLE FOR USE IN LIFE-SUPPORT APPLICATIONS, DEVICES  
OR SYSTEMS, OR IN NUCLEAR APPLICATIONS IN WHICH THE FAILURE COULD BE REASONABLY EXPECTED TO RESULT IN PERSONAL INJURY, LOSS OF LIFE  
OR SEVERE PROPERTY OR ENVIRONMENTAL DAMAGE. INCLUSION OF SEMTECH PRODUCTS IN SUCH APPLICATIONS IS UNDERSTOOD TO BE UNDERTAKEN  
SOLELY AT THE CUSTOMER’S OWN RISK. Should a customer purchase or use Semtech products for any such unauthorized application, the customer shall  
indemnify and hold Semtech and its officers, employees, subsidiaries, affiliates, and distributors harmless against all claims, costs damages and attorney  
fees which could arise.  
The Semtech name and logo are registered trademarks of the Semtech Corporation. All other trademarks and trade names mentioned may be marks and  
names of Semtech or their respective companies. Semtech reserves the right to make changes to, or discontinue any products described in this document  
without further notice. Semtech makes no warranty, representation or guarantee, express or implied, regarding the suitability of its products for any  
particular purpose. All rights reserved.  
© Semtech 2015  
Contact Information  
Semtech Corporation  
200 Flynn Road, Camarillo, CA 93012  
Phone: (805) 498-2111, Fax: (805) 498-3804  
www.semtech.com  
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August 24, 2015  
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