Specification	LM8850URE/NOPB

Current - Output	1.35 A
Frequency - Switching	2.5 MHz
Function	Step-Up
Mounting Type	Surface Mount
Number of Outputs	1
Operating Temperature [Max]	85 °C
Operating Temperature [Min]	-40 °C
Output Configuration	Positive
Output Type	Programmable
Package / Case	DSBGA, 9-XFBGA
Supplier Device Package	9-DSBGA
Synchronous Rectifier	True
Topology	Boost
Voltage - Input (Max) [Max]	5.5 V
Voltage - Input (Min) [Min]	2.3 V
Voltage - Output (Max) [Max]	5.7 V
Voltage - Output (Min/Fixed)	3.6 V

LM8850 Series

Part	Voltage - Output (Max) [Max]	Mounting Type	Voltage - Output (Min/Fixed)	Package / Case	Voltage - Input (Min) [Min]	Output Type	Current - Output	Output Configuration	Frequency - Switching	Topology	Function	Supplier Device Package	Operating Temperature [Max]	Operating Temperature [Min]	Number of Outputs	Voltage - Input (Max) [Max]	Voltage - Output [Min]	Voltage - Output [Max]	Main Purpose	Utilized IC / Part	Outputs and Type	Outputs and Type	Board Type	Voltage - Input [Min]	Voltage - Input [Max]	Supplied Contents	Regulator Topology
Texas Instruments LM8850URX/NOPB	5.7 V	Surface Mount	3.6 V	9-XFBGA DSBGA	2.3 V	Programmable	1.35 A	Positive	2.5 MHz	Boost	Step-Up	9-DSBGA	85 °C	-40 °C	1	5.5 V
Texas Instruments LM8850URE/NOPB	5.7 V	Surface Mount	3.6 V	9-XFBGA DSBGA	2.3 V	Programmable	1.35 A	Positive	2.5 MHz	Boost	Step-Up	9-DSBGA	85 °C	-40 °C	1	5.5 V
Texas Instruments LM8850UREV/NOPB							1 A		2.5 MHz								3.6 V	5.7 V	DC/DC Step Up	LM8850	Isolated	1	Fully Populated	2.3 V	5.5 V	Board(s)	Boost

Pricing

Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly

Distributor	Package	Quantity	$

Digikey	Cut Tape (CT)	1	$ 1.56
		10	$ 1.40
		25	$ 1.32
		100	$ 1.12
	Digi-Reel®	1	$ 1.56
		10	$ 1.40
		25	$ 1.32
		100	$ 1.12
	Tape & Reel (TR)	250	$ 1.05
		500	$ 0.92
		1250	$ 0.76
		2500	$ 0.71
		6250	$ 0.69
		12500	$ 0.66
Texas Instruments	SMALL T&R	1	$ 1.42
		100	$ 1.09
		250	$ 0.80
		1000	$ 0.57

Description

General part information

LM8850 Series

LM8850 is a step-up DC-DC converter optimized for use with a supercapacitor to protect a battery from power surges and enable new high power applications in mobile device architectures. The device creates an ideal rail from 3.6V to 5.7V boosting from a single Li-Ion cell with an input voltage range of 2.3V to 5.5V; Target VOUTmust be at least 10% higher than VIN.

An I2C interface controlling multiple output voltage settings, input current limits, and load currents up to 1A provides superior user flexibility. The LM8850 operates in Auto mode, where the converter is in PFM mode at light loads and switches to PWM mode at heavy loads. Hysteretic PFM extends the battery life by reduction of the quiescent current to 6µA (typ.) during light load and standby conditions. Synchronous operation provides true shutdown isolation and improves its efficiency at medium-to-full load conditions.

High-switching frequency enables smaller passive components. Internal compensation is used for a broader range of inductor and output capacitor values to meet system demand and achieve small system solution size.

Documents

Technical documentation and resources

High-Performance, Step-Up DC-DC Converter for High-Power Apps in Mobile Devices datasheet (Rev. C)

Data sheet