LT1931AIS5#TRMPBF
SearchCuk Switching Regulator IC Negative Adjustable -1.255V 1 Output 1A (Switch) SOT-23-5 Thin, TSOT-23-5
Lifecycle: Active Supply Risk Score and Supply Risk Trend are available on Pro and Enterprise. Watchlist (Pro)
Datasheets:Datasheet (Arrow USA)
Country of origin: MYRoHS Compliant MSL MSL 1
Farnell(1/5)
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View PlansConfirmed Stock
11,191
Availability is incomplete; unknown stock and unidentified marketplace inventory are excluded.
6 of 10 suppliers stocked
Best Unit Price
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Availability
6of 10 suppliers
Fastest delivery: 120 days
Shortest factory lead: 16 weeks
Stock by Supplier
Stock & Availability
| Supplier | Supplier Part Number | Stock | Delivery | Factory Lead | MOQ | Packaging | Status |
|---|---|---|---|---|---|---|---|
 | 3,990 | — | — | Minimum order quantity 4 | Reel - TR | In Stock | |
 | 1,554 | — | — | Minimum order quantity 1 | Reel, Cut Tape, MouseReel | In Stock | |
 | 505-LT1931AIS5#TRMPBFCT-ND | 1,168 | — | 16 weeks | Minimum order quantity 1 | Cut Tape (CT) | In Stock |
| 505-LT1931AIS5#TRMPBFDKR-ND | 1,168 | — | 16 weeks | Minimum order quantity 1 | Digi-Reel® | In Stock |
| 505-LT1931AIS5#TRMPBFTR-ND | 1,168 | — | 16 weeks | Minimum order quantity 500Order multiple 500 | Tape & Reel (TR) | In Stock |
 | 950 | — | — | Minimum order quantity 500Order multiple 500 | TAPE/REEL | In Stock | |
 | 414 | — | 16 weeks | Minimum order quantity 1 | — | In Stock | |
 | 387 | 120 days | — | Minimum order quantity 1 | — | In Stock | |
| 387 | 120 days | — | Minimum order quantity 10 | — | In Stock | |
 | 5 | — | — | Minimum order quantity 1 | Tape & Reel (TR) | In Stock |
Supplier Part Details
| Supplier | Description | RoHS | MSL | Life Cycle | SVHC | Category | Country | Weight | Tariff Code | Packaging | Links |
|---|---|---|---|---|---|---|---|---|---|---|---|
LCSC C579931 | 2.2MHz Adjustable -34V~-1.255V 1A TSOT-23-5 Voltage Regulators - DC DC Switching Regulators RoHS | Yes | — | — | — | DC-DC Converters | — | 0.00043 g | — | Tape & Reel (TR) | |
Digi-Key 505-LT1931AIS5#TRMPBFDKR-ND | Cuk Switching Regulator IC Negative Adjustable -1.255V 1 Output 1A (Switch) SOT-23-5 Thin, TSOT-23-5 | — | MSL 1 | Active | — | Integrated Circuits (ICs) | — | — | 8542.39.0070 (US HTS) | Digi-Reel® | |
Digi-Key 505-LT1931AIS5#TRMPBFCT-ND | Cuk Switching Regulator IC Negative Adjustable -1.255V 1 Output 1A (Switch) SOT-23-5 Thin, TSOT-23-5 | — | MSL 1 | Active | — | Integrated Circuits (ICs) | — | — | 8542.39.0070 (US HTS) | Cut Tape (CT) | |
Farnell 4024646RL | ANALOG DEVICES - LT1931AIS5#TRMPBF - DC/DC-Schaltregler, invertierend, einstellbar, 2.45 bis 16Vin, 36V/1.2Aout, TSOT-23-5 | Yes | — | Active | No SVHC (04-Feb-2026) | — | MY | — | 85423990 (EU CN) | — | |
Farnell 4024646 | ANALOG DEVICES - LT1931AIS5#TRMPBF - DC/DC-Schaltregler, invertierend, einstellbar, 2.45 bis 16Vin, 36V/1.2Aout, TSOT-23-5 | Yes | — | Active | No SVHC (04-Feb-2026) | — | MY | — | 85423990 (EU CN) | — | |
Arrow USA LT1931AIS5#TRMPBF | Conv DC-DC 2.45V to 16V Inv Single-Out 34V 2.5A 5-Pin TSOT-23 T/R | Yes | — | Active | — | DC to DC Converter and Switching Regulator Chip | — | — | — | — | |
Mouser 584-LT1931AIS5TRMPBF | Switching Voltage Regulators 1.2MHz/2.2MHz Inv DC/DC Convs in SOT | Yes | — | Restricted Availability | — | Switching Voltage Regulators | — | 0.000124 g | 8542399000 | Reel, Cut Tape, MouseReel | |
Winsource LT1931AIS5#TRMPBF | IC REG CUK INV ADJ 1A TSOT23-5 | Yes | — | — | — | — | — | — | — | Reel - TR | |
Digi-Key 505-LT1931AIS5#TRMPBFTR-ND | Cuk Switching Regulator IC Negative Adjustable -1.255V 1 Output 1A (Switch) SOT-23-5 Thin, TSOT-23-5 | — | MSL 1 | Active | — | Integrated Circuits (ICs) | — | — | 8542.39.0070 (US HTS) | Tape & Reel (TR) | |
MyArrow LT1931AIS5#TRMPBF | Conv DC-DC 2.45V to 16V Inv Single-Out 34V 5-Pin TSOT-23 T/R | Yes | — | Active | — | B | MY | — | — | TAPE/REEL |
Technical Attributes
FeaturesCycle-by-cycle current limiting;Overcurrent Protection;Adjustable soft-start
Frequency - Switching2.2MHz
Function-
Number of Outputs1
Operating Temperature-40℃~+85℃@(TA)
Operating Voltage2.45V~16V
Output Current1A
Output TypeAdjustable
Output Voltage-34V~-1.255V
Quiescent Current8mA
Switch tube (built-in/external)Built-in
TopologyInverting