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LM2665M6

1.8-V to 5.5-VIN switched capacitor voltage doubler

Manufacturer:

Texas Instruments, Inc
Mfr.Part #:

LM2665M6
Datasheet:

LM2665M6 Datasheet (PDF)
Function:

Ratiometric
Output Configuration:

Positive
Topology:

Charge Pump
Output Type:

Fixed
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LM2665M6 General Description

The LM2665 CMOS charge-pump voltage converter operates as a voltage doubler for an input voltage in the range of 2.5 V to 5.5 V. Two low-cost capacitors and a diode (needed during start-up) are used in this circuit to provide up to 40 mA of output current. The LM2665 can also work as a voltage divider to split a voltage in the range of 1.8 V to 11 V in half.

The LM2665 operates at 160-kHz oscillator frequency to reduce output resistance and voltage ripple. With an operating current of only 650 µA (operating efficiency greater than 90% with most loads) and
1-µA typical shutdown current, the LM2665 provides ideal performance for battery powered systems.

For all available packages, see the orderable addendum at the end of the data sheet.

Key Features

Input Voltage for Voltage Doubler: 2.5 V to 5.5 V
Voltage Divider Splits Voltage: 1.8 V to 11 V
Doubles or Splits Input Supply Voltage
12-Ω Typical Output Impedance
90% Typical Conversion Efficiency at 40 mA
1-µA Typical Shutdown Current

Specifications

Category	Integrated Circuits (ICs)Power Management (PMIC)Voltage Regulators - DC DC Switching Regulators	Series	-
Function	Ratiometric	Output Configuration	Positive
Topology	Charge Pump	Output Type	Fixed
Number of Outputs	1	Voltage - Input (Min)	2.5V
Voltage - Input (Max)	5.5V	Voltage - Output (Min/Fixed)	2Vin, Vin/2
Voltage - Output (Max)	-	Current - Output	40mA
Frequency - Switching	80kHz	Synchronous Rectifier	No
Operating Temperature	-40°C ~ 85°C (TJ)	Mounting Type	Surface Mount
Base Product Number	LM2665	Vin (min) (V)	2.5
Vin (max) (V)	5.8	Vout (min) (V)	1.8
Vout (max) (V)	11	Iout (max) (A)	0.04
Regulated outputs (#)	1	Switching frequency (min) (kHz)	40
Switching frequency (max) (kHz)	80	Iq (typ) (mA)	0.65
Features	Enable	Operating temperature range (°C)	-40 to 85
Rating	Catalog	Type	Charge pump
feature-function	Step Up	feature-process-technology
feature-output-type	Adjustable	feature-output-voltage-v	1.8 to 11
feature-minimum-operating-supply-voltage-v	2.5	feature-maximum-operating-supply-voltage-v	5.5
feature-maximum-supply-current-ma	0.65(Typ)	feature-maximum-power-dissipation-mw	600
feature-output-current-ma	40(Min)	feature-switching-frequency-khz	80(Typ)
feature-efficiency-	94(Typ)	feature-packaging	Tape and Reel
feature-rad-hard		feature-pin-count	6
feature-cecc-qualified	No	feature-esd-protection
feature-military	No	feature-aec-qualified	No
feature-aec-qualified-number		feature-eccn-code	EAR99
feature-svhc	Yes	feature-svhc-exceeds-threshold	Yes