Precision Electronics · Pune, India

Built for Engineers Who
Demand Real Performance

Precision LDO, power and temperature-sensor modules. Genuine Tier-1 components, real oscilloscope-verified specs, designed and built in Pune.

Also available on Amazon India →

Oscilloscope noise measurement of TrueVolt LDO output

CH1 20mV/div  |  1µs/div  |  Vrms 7.0µV (TI datasheet typ.)
45×
NOISE REDUCTION

TRUEVOLT TPS7A2033 — 45× RIPPLE REDUCTION, MEASURED
RIGOL DHO924S

7µVrms
Output Noise
95dB
PSRR @ 1kHz
6
Precision Modules
100%
Genuine Parts

Why Engineers Choose Ramanu

Genuine Components. Real Specs. Honest Testing.

01

100% Genuine Components

Authentic Texas Instruments, Samsung, Amphenol and Murata parts from authorized distributors. No grey-market parts, no remarked chips.

02

Real Measured Specifications

Every noise and thermal figure comes from a real oscilloscope on a real bench. We publish the measurement proof behind each spec.

03

Designed & Built in Pune

Every module is designed, assembled and tested in Pune, Maharashtra — supporting Indian engineering with world-class precision hardware.

Our Products

Six Precision Modules. One Standard.

Power Modules
TrueVolt-74033 LDO module

TrueVolt-74033

3.3V · 300mA LDO · aluminium PCB · TI TLV74033 · thermal shutdown

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TrueVolt LN-7A2033 ultra-low-noise LDO

TrueVolt LN-7A2033

7µVrms noise · 95dB PSRR · 140mV dropout · ultra-low-noise 3.3V

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PureRail C33 Nano USB-C power module

PureRail C33 Nano

USB-C in · 3.3V + 5V out · 7µVrms · for SDR, RF, ADC, audio DAC

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PureSwitch-22919 load switch

PureSwitch-22919

Soft-start 1.5A load switch · stops ESP32 brown-out · 2nA shutdown

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Sensor Modules
SwiftSense T235 temperature sensor

SwiftSense T235

TI TMP235 · ±0.5°C · 10mV/°C analog out · 2× faster than FR4 · no I²C

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RS-TMP6331 temperature sensor

RS-TMP6331

Linear silicon PTC · aluminium PCB · reads on any Arduino ADC · no I²C

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What Engineers Say

Honest Specs, Verified by Users.

★★★★★

“Finally a module with honest specifications. The noise performance is exactly as advertised — it made a real difference in my SDR setup.”

SDR builder, Bengaluru
Verified Amazon Purchase

★★★★★

“Quality is clearly better than the Chinese alternatives. Genuine components, proper documentation, and fast shipping.”

Embedded engineer, Pune
Verified Amazon Purchase

★★★★★

“The aluminium-PCB sensor responds far faster than my old NTC module. Exactly what I needed for my 3D-printer protection circuit.”

Maker, Hyderabad
Verified Amazon Purchase

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