Specification	MAX850ESA+T

Current - Output	5 mA
Frequency - Switching	100 kHz
Function	Step-Down
Mounting Type	Surface Mount
Number of Outputs	1
Operating Temperature [Max]	85 C
Operating Temperature [Min]	-40 ¯C
Output Configuration	Negative
Output Type	Adjustable (Fixed)
Package / Case	0.154 in
Package / Case	8-SOIC
Package / Case	3.9 mm
Supplier Device Package	8-SOIC
Synchronous Rectifier	False
Voltage - Input (Max) [Max]	10 V
Voltage - Input (Min) [Min]	4.5 V
Voltage - Output (Max) [Max]	-9 V
Voltage - Output (Min/Fixed)	-1.28 V
Voltage - Output (Min/Fixed)	-4.1 V

MAX850 Series

Part	Frequency - Switching	Voltage - Input (Min) [Min]	Voltage - Output (Max) [Max]	Operating Temperature [Max]	Operating Temperature [Min]	Number of Outputs	Function	Voltage - Input (Max) [Max]	Voltage - Output (Min/Fixed)	Voltage - Output (Min/Fixed)	Output Type	Package / Case	Package / Case	Package / Case	Current - Output	Supplier Device Package	Mounting Type	Output Configuration	Voltage - Output	Voltage - Input [Max]	Voltage - Input [Min]	Applications
Analog Devices Inc./Maxim Integrated MAX850ISA+	100 kHz	4.5 V	-9 V	85 °C	-25 °C	1	Step-Down	10 V	-1.28 V	-4.1 V	Adjustable (Fixed)	0.154 in	8-SOIC	3.9 mm	5 mA	8-SOIC	Surface Mount	Negative
Analog Devices Inc./Maxim Integrated MAX850ISA				85 °C	-25 °C	1						0.154 in	8-SOIC	3.9 mm		8-SOIC	Surface Mount		-4.1 V	10 VDC	4.5 V	Cellular Telephone Transmitter Charge Pump
Analog Devices Inc./Maxim Integrated MAX850ISA+T	100 kHz	4.5 V	-9 V	85 °C	-25 °C	1	Step-Down	10 V	-1.28 V	-4.1 V	Adjustable (Fixed)	0.154 in	8-SOIC	3.9 mm	5 mA	8-SOIC	Surface Mount	Negative
Analog Devices Inc./Maxim Integrated MAX850ESA+T	100 kHz	4.5 V	-9 V	85 C	-40 ¯C	1	Step-Down	10 V	-1.28 V	-4.1 V	Adjustable (Fixed)	0.154 in	8-SOIC	3.9 mm	5 mA	8-SOIC	Surface Mount	Negative
Analog Devices Inc./Maxim Integrated MAX850ESA-T				85 °C	-40 C	1						0.154 in	8-SOIC	3.9 mm		8-SOIC	Surface Mount		-4.1 V	10 VDC	4.5 V	Cellular Telephone Transmitter Charge Pump
Analog Devices Inc./Maxim Integrated MAX850ESA+	100 kHz	4.5 V	-9 V	85 C	-40 ¯C	1	Step-Down	10 V	-1.28 V	-4.1 V	Adjustable (Fixed)	0.154 in	8-SOIC	3.9 mm	5 mA	8-SOIC	Surface Mount	Negative
Analog Devices Inc./Maxim Integrated MAX850ESA				85 °C	-40 C	1						0.154 in	8-SOIC	3.9 mm		8-SOIC	Surface Mount		-4.1 V	10 VDC	4.5 V	Cellular Telephone Transmitter Charge Pump

Pricing

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

Distributor	Package	Quantity	$

Digikey	N/A	0	$ 4.09
	Tape & Reel (TR)	2500	$ 3.35

Description

General part information

MAX850 Series

The MAX850-MAX853 low-noise, inverting, charge-pump power supplies are ideal for biasing GaAsFETs in cellular telephone transmitter amplifiers.The MAX850-MAX852 offer both preset (-4.1V) and adjustable (-0.5V to -9.0V) output voltages. The MAX853 uses an external positive control voltage to set the negative output voltage. Input voltage range for all four devices is 4.5V to 10V. Output current is 5mA.An internal linear regulator reduces the output voltage ripple to 2mVP-P. With a well-filtered control voltage (VCTRL), the MAX853 achieves typical output ripple of less than 1mVP-P. Supply current is 3mA max, and shutdown current is less than 1µA max over temperature (5µA max for MAX851).ApplicationsCell PhonesContinuously Adjustable GaAsFET BiasLCD-Bias Contrast ControlNegative Regulated Power SuppliesPersonal Communicators, PDAsWireless Data Loggers

Documents

Technical documentation and resources

Package Drawing - Small-Outline IC, Narrow (0.15in)

Package Drawing

MAX850 Reliability Data

Reliability Data

MAX850ESA+T

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MAX850ESA+T

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Technical Specifications

MAX850 Series

Pricing

Description

MAX850 Series

Documents

Package Drawing - Small-Outline IC, Narrow (0.15in)

MAX850 Reliability Data

Datasheet

MAX850 Series