LM2776DBV

Texas InstrumentsExtended

-40℃~+85℃ -5.5V~-2.7V 2.5Ω 2.7V~5.5V 200mA 200uA 2MHz 90% Inverted Support SOT-23-6 Charge Pumps ROHS

Part id: ti/LM2776DBV
Category: Charge Pumps
Package: SOT-23-6
Pins: 6
In stock: 10,784 at JLCPCB (C69527)
Used on: 40 open-source boards

Overview

The LM2776DBV is a charge Pump made by Texas Instruments in a SOT-23-6 package with 6 pins. -40℃~+85℃ -5.5V~-2.7V 2.5Ω 2.7V~5.5V 200mA 200uA 2MHz 90% Inverted Support SOT-23-6 Charge Pumps ROHS.

PCBKit's library has its KiCad symbol (Regulator_SwitchedCapacitor:LM2776, from KiCad's library) and its footprint (Package_TO_SOT_SMD:SOT-23-6, from KiCad's library), ready for a KiCad board. 10,784 are in stock at JLCPCB (part C69527). 40 open-source boards in 31 repositories on GitHub use it.

Symbol

Regulator_SwitchedCapacitor:LM2776From KiCad's library

Footprint

Package_TO_SOT_SMD:SOT-23-6From KiCad's library

From the datasheet

Supply, least: 2.7 V · VIN, recommended operating min · p. 4
Supply, most: 5.5 V · VIN, recommended operating max · p. 4
Supply, absolute maximum: 6 V · VIN to GND, absolute max · p. 4
Works from: -40 °C · Ambient temperature min · p. 4
Works up to: 85 °C · Ambient temperature max · p. 4
Junction, hottest: 125 °C · Operating junction temperature max · p. 4
Takes working: 100 µA · VIN supply current typical, EN = 1, no load, VIN = 3.6 V · p. 5
Takes asleep: 100 nA · Shutdown supply current typical, EN = 0 · p. 5
Gives: 200 mA · Output current recommended max · p. 4
Current limit: 400 mA · Output current limit typical · p. 5
Switches at: 2 MHz · Switching frequency typical · p. 5
Junction to air (DBV (SOT)): 187 K/W · Junction-to-ambient thermal resistance · p. 4
Junction to case (DBV (SOT)): 158.2 K/W · Junction-to-case top thermal resistance · p. 4
Junction to board (DBV (SOT)): 33.3 K/W · Junction-to-board thermal resistance · p. 4

What it is and has

Conversion: Inverts input supply voltage · p. 1
Operating mode: Low-current PFM · p. 1
Efficiency: Greater than 90% · p. 1
Protection: Current limit and thermal protection · p. 1
Inductors: None required · p. 1
Package: SOT-23 (6), 2.90 mm × 1.60 mm · p. 1
Switching frequency: 2 MHz · p. 1

Around it

cap 2.2 µF: between VIN and GND; CIN used for electrical characterization; ceramic X7R or X5R preferred. Effective input capacitance must remain at least 0.7 uF. · p. 5
cap 1 µF: between C1+ and C1-; Flying capacitor used for electrical characterization; effective capacitance must remain at least 0.2 uF. Voltage rating must be at least the maximum input voltage. · p. 5
cap 1-µF: between VOUT and GND; Recommended low-ESR ceramic output capacitor for typical applications; voltage rating at least 10 V and effective capacitance at least 0.5 uF. · p. 13
cap 1 µF: between VIN and GND; Low-ESR ceramic input capacitor for typical applications; place close to the device on the same layer. · p. 14
cap 0.47 µF or 1 µF: between C1+ and C1–; 10 V low-ESR ceramic flying capacitor for typical high-current applications. Do not use polarized capacitors. · p. 14
cap 10 µF: between VOUT and GND; 10 V low-ESR ceramic output capacitor recommended for high-current applications. · p. 14

Specifications

Parameter	Conditions	As printed	Page
Supply voltage (VIN to GND, or GND to VOUT)	Over operating free-air temperature range	max 6 V	4
VOUT continuous output current	Over operating free-air temperature range	max 250 mA	4
Operating junction temperature, TJMax (3) TJMax		max 125 °C	4
Storage temperature, Tstg Tstg		min -65 · max 150 °C	4
Electrostatic discharge V(ESD)	Human-body model (HBM), per ANSI/ESDA/JEDEC JS-001; rating ±1000 V	max 1000 V	4
Electrostatic discharge V(ESD)	Charged-device model (CDM), per JEDEC specification JESD22-C101; rating ±250 V	max 250 V	4
Junction temperature		min -40 · max 125 °C	4
Ambient temperature		min -40 · max 85 °C	4
Input voltage		min 2.7 · max 5.5 V	4
Output current		min 0 · max 200 mA	4
Junction-to-ambient thermal resistance RθJA	LM2776, DBV (SOT), 6 pins	typ 187 °C/W	4
Junction-to-case (top) thermal resistance RθJC(top)	LM2776, DBV (SOT), 6 pins	typ 158.2 °C/W	4
Junction-to-board thermal resistance RθJB	LM2776, DBV (SOT), 6 pins	typ 33.3 °C/W	4
Junction-to-top characterization parameter ψJT	LM2776, DBV (SOT), 6 pins	typ 37.8 °C/W	4
Junction-to-board characterization parameter ψJB	LM2776, DBV (SOT), 6 pins	typ 32.8 °C/W	4
Supply current IQ	EN = 1. No load; VIN = 3.6 V, CIN = COUT = 2.2 uF, C1 = 1 uF; typical at TA = 25°C, limits over −40°C to +85°C	typ 100 · max 200 uA	5
Shutdown supply current ISD	EN = 0; VIN = 3.6 V, CIN = COUT = 2.2 uF, C1 = 1 uF; typical at TA = 25°C, limits over −40°C to +85°C	typ 0.1 · max 1 uA	5
Enable pin input threshold voltage VEN	Normal operation; VIN = 3.6 V; −40°C to +85°C	min 1.2 V	5
Enable pin input threshold voltage VEN	Shutdown mode; VIN = 3.6 V; −40°C to +85°C	max 0.4 V	5
Output resistance ROUT	VIN = 3.6 V, CIN = COUT = 2.2 uF, C1 = 1 uF; TA = 25°C	typ 2.5 Ω	5
Output current limit ICL	VIN = 3.6 V, CIN = COUT = 2.2 uF, C1 = 1 uF; TA = 25°C	typ 400 mA	5
Undervoltage lockout UVLO	VIN Falling; TA = 25°C	typ 2.4 V	5
Undervoltage lockout UVLO	VIN Rising; TA = 25°C	typ 2.6 V	5
Switching frequency ƒSW	Over operating free-air temperature range	min 1.7 · typ 2 · max 2.3 MHz	5

Pins, by the datasheet

1 VOUT: Negative voltage output. · p. 3
2 GND: Power supply ground input. · p. 3
3 VIN: Power supply positive voltage input. · p. 3
4 EN: Tie high for normal operation and to GND for shutdown. · p. 3
5 C1+: Connect to the positive terminal of the charge-pump capacitor. · p. 3
6 C1-: Connect to the negative terminal of the charge-pump capacitor. · p. 3

Ordering codes, by the datasheet

LM2776DBVR: SOT-23 (DBV) · 6 pins; 3000, LARGE T&R; operating temperature -40 to 85 °C; SN lead finish. · p. 17
LM2776DBVR.A: SOT-23 (DBV) · 6 pins; 3000, LARGE T&R; operating temperature -40 to 125 °C; SN lead finish. · p. 17
LM2776DBVT: SOT-23 (DBV) · 6 pins; 250, SMALL T&R; operating temperature -40 to 85 °C; NIPDAU | SN lead finish. · p. 17
LM2776DBVT.A: SOT-23 (DBV) · 6 pins; 250, SMALL T&R; operating temperature -40 to 125 °C; NIPDAU lead finish. · p. 17

Parameters

Current - Supply: 100uA
Current Limit: 400mA
Energy Efficiency: 90%
Features: Overcurrent Protection
Frequency - Switching: 2MHz
Function: Inverted
Junction Temperature(Max): 125℃
Operating Temperature: -40℃~+85℃
Operating Voltage: 2.7V~5.5V
Output Current: 200mA
Output Resistance: 2.5Ω
Output Voltage: -5.5V~-2.7V
PFM Mode: Support
Quiescent Current: 200uA
Standby Current: 100nA
Switching Frequency: 2MHz
Thermal Resistance(Junction to Ambient): 187℃/W
Thermal Resistance(Junction to Board): 33.3℃/W
Thermal Resistance(Junction to Case): 158.2℃/W
Voltage - Supply: 2.7V~5.5V
Voltage - Supply(Absolute Max): 6V

Order codes

LM2776DBVRLCSC C69527
LM2776DBVTLCSC C840110

Pinout

The pins of the LM2776DBV
Pin	Name	Type
1	VOUT	Power out
2	GND	Power in
3	VIN	Power in
4	EN	Input
5	C1+	Passive
6	C1-	Passive

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Parts like it

Questions

Is there a KiCad symbol and footprint for the LM2776DBV?

Yes. The symbol is Regulator_SwitchedCapacitor:LM2776 and the footprint Package_TO_SOT_SMD:SOT-23-6, both drawn on this page. PCBKit places them on a board for you when you design with it.

What package is the LM2776DBV?

SOT-23-6, with 6 pins. Its footprint is drawn on this page.

Where is the LM2776DBV datasheet?

Texas Instruments publishes it: the Datasheet link on this page opens it.

Where can I order the LM2776DBV?

JLCPCB lists it as part C69527, with 10,784 in stock; the sellers' links on this page open their listings.

What can replace the LM2776DBV?

Parts like it in the library: the ME2135A50M6G by MICRONE, the TX4310B by XDS, the HX4002-MFC by HEXIN and the ME2135A33M6G by MICRONE. Check their datasheets: a part that fits the footprint may still differ in its ratings.

Which open-source boards use the LM2776DBV?

40 boards in 31 repositories on GitHub; the most starred are listed on this page, with their KiCad files.

LM2776DBV

Overview

Symbol

Footprint

From the datasheet

What it is and has

Around it

Specifications

Pins, by the datasheet

Ordering codes, by the datasheet

Open-source boards using it

Readout 60pin

Power board

Senior Design IRLTSPICE

DiffPCB

LAB3

Probe

SENTINEL TRM

DC Controller STM32

Parts like it

ME2135A50M6G

TX4310B

HX4002-MFC

ME2135A33M6G

SGM3204YN6G/TR

HX4004A-MFC

TX4310

TX4314