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See Technical Specifications

LM828M5/NOPB

Switched Capacitor Voltage Converter

Manufacturer:

Texas Instruments, Inc
Mfr.Part #:

LM828M5/NOPB
Datasheet:

LM828M5/NOPB Datasheet (PDF)
Vin (min) (V):

1.8
Vin (max) (V):

5.5
Vout (min) (V):

-5.5
Vout (max) (V):

-1.8
EDA/CAD Models:

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LM828M5/NOPB General Description

The LM828 CMOS charge-pump voltage converter inverts a positive voltage in the range of +1.8V to +5.5V to the corresponding negative voltage of −1.8V to −5.5V. The LM828 uses two low cost capacitors to provide up to 25 mA of output current.

The LM828 operates at 12 kHz switching frequency to reduce output resistance and voltage ripple. With an operating current of only 40 µA (operating efficiency greater than 96% with most loads), the LM828 provides ideal performance for battery powered systems. The device is in a tiny SOT-23 package.

Key Features

Inverts Input Supply Voltage
SOT-23 Package
20Ω Typical Output Impedance
97% Typical Conversion Efficiency at 5 mA

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Specifications

Vin (min) (V)	1.8	Vin (max) (V)	5.5
Vout (min) (V)	-5.5	Vout (max) (V)	-1.8
Iout (max) (A)	0.025	Regulated outputs (#)	1
Switching frequency (min) (kHz)	6	Switching frequency (max) (kHz)	28
Iq (typ) (mA)	0.04	Features	Synchronous Rectification
Operating temperature range (°C)	-40 to 85	Rating	Catalog
Type	Charge pump	feature-function	Inverting
feature-process-technology		feature-output-type	Adjustable
feature-output-voltage-v	-1.8 to -5.5	feature-minimum-operating-supply-voltage-v	1.8
feature-maximum-operating-supply-voltage-v	5.5	feature-maximum-supply-current-ma
feature-maximum-power-dissipation-mw	240	feature-output-current-ma	25(Max)
feature-switching-frequency-khz	12(Typ)	feature-efficiency-	97(Typ)
feature-packaging	Tape and Reel	feature-rad-hard
feature-pin-count	5	feature-cecc-qualified	No
feature-esd-protection	Yes	feature-military	No
feature-aec-qualified	No	feature-aec-qualified-number
feature-eccn-code	EAR99	feature-svhc	No
feature-svhc-exceeds-threshold	No

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Ratings and Reviews

M**r 04/04/2022

Power supplies working current did not check only the output voltage. In one of the power supplies there was no capacitor c6 0.001 uf. Capacity meryl testor in the photo from the other two serviceable bp. But for such a price it is a sin to complain but it is not pleasant. I recommend to buy.

C**n 09/25/2020

Drivers installed leds flashing. Full-fledged transmission did not check.

A**n 08/12/2020

The charge modules came intact and safe. I haven't checked in yet.

Y**a 07/31/2020

Kudos to Avaq for their exceptional customer service and on-time delivery. The IS43TR16256B-125KBLI components provided are original and met all my requirements. A reliable distributor I can recommend!