Overview
The LM27313XMFX is a DC DC Converter made by Texas Instruments in a SOT-23-5 package with 5 pins. -40℃~+125℃@(TJ) 1 1.6MHz 2.7V~14V 400uA 5V~28V 800mA Adjustable Boost Boost Built-in No SOT-23-5 DC-DC Converters ROHS.
PCBKit's library has its KiCad symbol (Regulator_Switching:LM27313XMF, from KiCad's library) and its footprint (Package_TO_SOT_SMD:SOT-23-5, from KiCad's library), ready for a KiCad board. 6,216 are in stock at JLCPCB (part C341750).
Symbol
Footprint
From the datasheet
13- Supply, least
- 2.7 V · VIN, recommended operating min · p. 4
- Supply, most
- 14 V · VIN, recommended operating max · p. 4
- Supply, absolute maximum
- 14.5 V · VIN, absolute max · p. 3
- Junction, hottest
- 125 °C · junction temperature, recommended operating max · p. 4
- Takes working
- 2.1 mA · VIN quiescent current, switching, typical · p. 5
- Takes at most
- 3 mA · VIN quiescent current, switching, −40°C to +125°C, max · p. 5
- Takes asleep
- 24 nA · VIN quiescent current, VSHDN = 0, typical · p. 5
- Current limit
- 1.25 A · switch current limit, duty cycles ≤ 50%, typical · p. 5
- Feedback reference
- 1.23 V · FB reference voltage, VIN = 3 V, typical · p. 5
- Switches at
- 1.6 MHz · switching frequency, typical · p. 5
- Junction to air (DBV)
- 166.3 K/W · junction-to-ambient thermal resistance, typical · p. 4
- Junction to case (DBV)
- 71.8 K/W · junction-to-case top thermal resistance, typical · p. 4
- Junction to board (DBV)
- 28.1 K/W · junction-to-board thermal resistance, typical · p. 4
What it is and has
9- Internal switch
- 30-V DMOS FET · p. 1
- Switching frequency
- 1.6 MHz · p. 1
- Switch current
- Up to 800 mA · p. 1
- Input voltage range
- 2.7 V to 14 V · p. 1
- Shutdown current
- < 1 µA · p. 1
- Package
- 5-Lead SOT-23 · p. 1
- Protection
- Cycle-by-cycle current limiting · p. 1
- Protection
- Thermal shutdown · p. 8
- Compensation
- Internal · p. 1
Around it
14- cap 4.7 µF to 10 µF
- between VOUT and GND; Output ceramic capacitor; use X5R or X7R dielectric. · p. 11
- cap 10 µF
- between VOUT and GND; Required for output voltages below 10 V; ceramic. · p. 11
- cap 2.2 µF
- between VIN and GND; Nominal input capacitance; larger values allowed. Ceramic with extremely low ESR and ESL; X5R or X7R. · p. 11
- cap 220 pF
- between VOUT and FB; CF feed-forward capacitor in the 5 V to 12 V example; keep close to FB. · p. 10
- cap 120 pF
- between VOUT and FB; CF feed-forward capacitor in the 5 V to 20 V example; keep close to FB. · p. 16
- res 13.3 kΩ
- between FB and GND; R2 output divider resistor; keep close to FB. · p. 11
- res 117k
- between VOUT and FB; R1 output divider resistor in the 5 V to 12 V example; keep close to FB. · p. 10
- res 205k
- between VOUT and FB; R1 output divider resistor in the 5 V to 20 V example; keep close to FB. · p. 16
- res 50 kΩ to 100 kΩ
- between SHDN and VIN; Pullup when shutdown is used, unless SHDN is actively driven high and low; do not leave SHDN unterminated. · p. 15
- ind 10 µH
- between VIN and SW; Inductor in the typical 5 V to 12 V boost application. · p. 12
- diode MBR0520
- between SW and VOUT; External Schottky diode, anode at SW and cathode at VOUT; recommended when switch voltage is less than 15 V. · p. 11
- diode MBR0530
- between SW and VOUT; 30 V external Schottky diode for switch voltages between 15 V and 25 V; anode at SW and cathode at VOUT. · p. 11
- diode MBR0540
- between SW and VOUT; 40 V external Schottky diode for switch voltages exceeding 25 V; anode at SW and cathode at VOUT. · p. 11
- diode Microsemi UPS5817
- between SW and VOUT; External diode option for applications with load currents to 800 mA. · p. 11
Specifications
38| Parameter | Conditions | As printed | Page |
|---|---|---|---|
| FB Pin Voltage | min -0.4 · max 6 V | 3 | |
| SW Pin Voltage | min -0.4 · max 30 V | 3 | |
| Input Supply Voltage | min -0.4 · max 14.5 V | 3 | |
| Shutdown Input Voltage | Survival | min -0.4 · max 14.5 V | 3 |
| Lead Temp. (Soldering, 5 s) | Soldering, 5 s | max 300 °C | 3 |
| Storage temperature, Tstg Tstg | min -65 · max 150 °C | 3 | |
| Electrostatic discharge V(ESD) | LM27313; Human body model (HBM), per ANSI/ESDA/JEDEC JS-001, all pins; ±2000 V | min -2000 · max 2000 V | 3 |
| Electrostatic discharge V(ESD) | LM27313; Charged device model (CDM), per JEDEC specification JESD22-C101, all pins; ±1000 V | min -1000 · max 1000 V | 3 |
| VIN VIN | min 2.7 · max 14 V | 4 | |
| VSW(MAX) VSW(MAX) | max 30 V | 4 | |
| VSHDN VSHDN | Maximum: VIN | min 0 V | 4 |
| Junction Temperature, TJ TJ | min -40 · max 125 °C | 4 | |
| Junction-to-ambient thermal resistance RθJA | DBV, 5 pins | typ 166.3 °C/W | 4 |
| Junction-to-case (top) thermal resistance RθJC(top) | DBV, 5 pins | typ 71.8 °C/W | 4 |
| Junction-to-board thermal resistance RθJB | DBV, 5 pins | typ 28.1 °C/W | 4 |
| Junction-to-top characterization parameter ψJT | DBV, 5 pins | typ 2.1 °C/W | 4 |
| Junction-to-board characterization parameter ψJB | DBV, 5 pins | typ 27.7 °C/W | 4 |
| Input Voltage VIN | −40°C ≤ TJ ≤ +125°C | min 2.7 · max 14 V | 5 |
| Switch Current Limit ISW | Duty cycles ≤ 50%; VIN = 5 V, VSHDN = 5 V, TJ = 25°C | min 0.8 · typ 1.25 A | 5 |
| Switch ON Resistance RDS(ON) | ISW = 100 mA; VIN = 5 V, VSHDN = 5 V, TJ = 25°C | typ 500 · max 650 mΩ | 5 |
| Shutdown Threshold VSHDN(TH) | Device ON, −40°C ≤ TJ ≤ +125°C | min 1.5 V | 5 |
| Shutdown Threshold VSHDN(TH) | Device OFF, −40°C ≤ TJ ≤ +125°C | max 0.5 V | 5 |
| Shutdown Pin Bias Current ISHDN | VSHDN = 0; VIN = 5 V, IL = 0 mA, TJ = 25°C | typ 0 uA | 5 |
| Shutdown Pin Bias Current ISHDN | VSHDN = 5 V; VIN = 5 V, IL = 0 mA, TJ = 25°C | typ 0 · max 2 uA | 5 |
| Feedback Pin Reference Voltage VFB | VIN = 3 V; VSHDN = 5 V, IL = 0 mA, TJ = 25°C | typ 1.23 V | 5 |
| Feedback Pin Reference Voltage VFB | VIN = 3 V, −40°C ≤ TJ ≤ +125°C | min 1.205 · max 1.255 V | 5 |
| Feedback Pin Bias Current IFB | VFB = 1.23 V; VIN = 5 V, VSHDN = 5 V, IL = 0 mA, TJ = 25°C | typ 60 nA | 5 |
| Quiescent Current IQ | VSHDN = 5 V, Switching; VIN = 5 V, IL = 0 mA, TJ = 25°C | typ 2.1 mA | 5 |
| Quiescent Current IQ | VSHDN = 5 V, Switching, −40°C ≤ TJ ≤ +125°C | max 3 mA | 5 |
| Quiescent Current IQ | VSHDN = 5 V, Not Switching; VIN = 5 V, IL = 0 mA, TJ = 25°C | typ 400 uA | 5 |
| Quiescent Current IQ | VSHDN = 5 V, Not Switching, −40°C ≤ TJ ≤ +125°C | max 500 uA | 5 |
| Quiescent Current IQ | VSHDN = 0; VIN = 5 V, IL = 0 mA, TJ = 25°C | typ 0.024 · max 1 uA | 5 |
| FB Voltage Line Regulation ΔVFB/ΔVIN | 2.7 V ≤ VIN ≤ 14 V | typ 0.02 %/V | 5 |
| Switching Frequency fSW | VIN = 5 V, VSHDN = 5 V, IL = 0 mA, TJ = 25°C | typ 1.6 MHz | 5 |
| Switching Frequency fSW | −40°C ≤ TJ ≤ +125°C | min 1.15 · max 1.9 MHz | 5 |
| Maximum Duty Cycle DMAX | VIN = 5 V, VSHDN = 5 V, IL = 0 mA, TJ = 25°C | typ 88 % | 5 |
| Maximum Duty Cycle DMAX | −40°C ≤ TJ ≤ +125°C | min 80 % | 5 |
| Switch Leakage IL | Not Switching, VSW = 5 V | max 1 uA | 5 |
Pins, by the datasheet
5- 1 SW
- Drain of the internal FET switch. · p. 3
- 2 GND
- Analog and power ground. · p. 3
- 3 FB
- Feedback point connected to an external resistive divider to set VOUT. · p. 3
- 4 SHDN
- Shutdown control input; connect to VIN if unused. · p. 3
- 5 VIN
- Analog and power input. · p. 3
Parameters
22- Current - Supply(Max)
- 3mA
- Current Limit
- 1.25A
- Features
- Cycle-by-cycle current limiting
- Frequency - Switching
- 1.6MHz
- Function
- Boost
- Junction Temperature(Max)
- 125℃
- Number of Outputs
- 1
- Operating Temperature
- -40℃~+125℃@(TJ)
- Output Current
- 800mA
- Output Type
- Adjustable
- Output Voltage
- 5V~28V
- Quiescent Current
- 2.1mA
- Reference Voltage
- 1.23V
- Standby Current
- 24nA
- Switch tube (built-in/external)
- Built-in
- Synchronous Rectifier
- No
- Thermal Resistance(Junction to Ambient)
- 166.3℃/W
- Thermal Resistance(Junction to Board)
- 28.1℃/W
- Thermal Resistance(Junction to Case)
- 71.8℃/W
- Topology
- Boost
- Voltage - Supply
- 2.7V~14V
- Voltage - Supply(Absolute Max)
- 14.5V
Order codes
1- LM27313XMFX/NOPBLCSC C341750
Pinout
5| Pin | Name | Type |
|---|---|---|
| 1 | SW | Output |
| 2 | GND | Power in |
| 3 | FB | Input |
| 4 | EN | Input |
| 5 | VIN | Input |
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Is there a KiCad symbol and footprint for the LM27313XMFX?
Yes. The symbol is Regulator_Switching:LM27313XMF and the footprint Package_TO_SOT_SMD:SOT-23-5, both drawn on this page. PCBKit places them on a board for you when you design with it.
What package is the LM27313XMFX?
SOT-23-5, with 5 pins. Its footprint is drawn on this page.
Where is the LM27313XMFX datasheet?
Texas Instruments publishes it: the Datasheet link on this page opens it.
Where can I order the LM27313XMFX?
JLCPCB lists it as part C341750, with 6,216 in stock; the sellers' links on this page open their listings.
What can replace the LM27313XMFX?
Parts like it in the library: the MT3540-F23 by XI'AN Aerosemi Tech, the TLV62569DBV by Texas Instruments, the SY8088IAAC by 矽力杰silergy and the MT3406 by XI'AN Aerosemi Tech. Check their datasheets: a part that fits the footprint may still differ in its ratings.
Parts like it
8
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