1.5-A, negative, adjustable linear voltage regulator
Product details
Parameters
Package | Pins | Size
Features
- Output Voltage Range Adjustable
From –1.2 V to –37 V - Output Current Capability of 1.5 A Max
- Input Regulation Typically 0.01% Per Input-
Voltage Change - Output Regulation Typically 0.3%
- Peak Output Current Constant Over Temperature
Range of Regulator - Ripple Rejection Typically 77 dB
- Direct Replacement for Industry-Standard LM237
and LM337
Description
The LM237 and LM337 are adjustable 3-terminal negative-voltage regulators capable of supplying in excess of –1.5 A over an output voltage range of –1.2 V to –37 V. They require only two external resistors to set the output voltage and one output capacitor for frequency compensation.
Same functionality but is not pin-for-pin or parametrically equivalent to the compared device:
Technical documentation
Design & development
For additional terms or required resources, click any title below to view the detail page where available.Hardware development
Description
The LM317A-337N-EVM demonstrates canonical application of the LM317A adjustable regulator and its negative complement, the LM337-N. The evaluation module (EVM) is assesmbled with the SOT-223 package option for each device, supplying up to 1 A of load current. The EVM is designed for easy (...)
Features
- Output adjustable from 1.2 V to 37 V for LM317A and –1.2 V to –37 V for LM337-N
- 1-A load current with 1.5-A option
- Heat sink space provided for TO-220
- Large capacitor footprint space for customer selection
Design tools & simulation
Reference designs
Design files
-
download TIDA-00127 BOM.pdf (95KB) -
download TIDA-00127 Gerber.zip (234KB) -
download TIDA-00127 Altium.zip (1457KB) -
download TIDA-00127 PCB.pdf (2489KB)
Design files
-
download TIDA-00227 BOM.pdf (111KB) -
download TIDA-00227 Fabrication Drawing.pdf (345KB) -
download TIDA-00227 Layer Plots.zip (681KB) -
download TIDA-00227 Altium.zip (3040KB) -
download TIDA-00227 Gerber.zip (301KB)
CAD/CAE symbols
Package | Pins | Download |
---|---|---|
DDPAK/TO-263 (KTT) | 3 | View options |
TO-220 (KCS) | 3 | View options |
TO-252 (KVU) | 3 | View options |
Ordering & quality
- RoHS
- REACH
- Device marking
- Lead finish/Ball material
- MSL rating/Peak reflow
- MTBF/FIT estimates
- Material content
- Qualification summary
- Ongoing reliability monitoring
Recommended products may have parameters, evaluation modules or reference designs related to this TI product.
Support & training
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