Sistema de RPM con LM393
5:34
Searching: "Ultra‑low quiescent boost converter to produce regulated 3.3 V from a single cell (input 0.9–1.6 V). Iq <= 5 uA (prefer <=2 uA). Must support short RF burst loads 60–120 mA with minimal droop, automatic PFM/PWM or hysteretic mode, enable pin, small SMD (SOT‑23‑5/6 or 2x2 DFN), external inductor."
Searching: "Fixed 3.3 V boost regulator, ultra‑low quiescent current <=5 uA, input down to 0.9 V, supports 100 mA peak bursts for RF transceiver, EN pin, SOT‑23‑5/6 or 2x2 DFN packages."
Searching: "Boost converter with true output disconnect/bypass or low‑loss bypass for shutdown; 3.3 V output, ultra‑low Iq, small SMD packages."
Found 192 results.
Searching: "Ultra-low quiescent current boost converter IC to generate regulated 3.3 V from a single 1.5 V AA cell (input 0.9–1.6 V). Must support short RF burst loads from an NRF24L01+ transceiver (peak 60–120 mA range) with minimal droop; average load a few mA. Target Iq <= 5 uA (preferably <= 2 uA), automatic PFM/PWM or hysteretic operation for high efficiency at light load, enable/shutdown pin, small SMD package (SOT-23-5/6 or 2x2 DFN), external inductor (2.2–10 uH typical). Options with true output disconnect or bypass are nice-to-have. Prioritize widely available, active, 3.3 V fixed or adjustable versions. --- MANDATORY search constraints (these MUST be applied to all searches): fieldCategories: ["core","type","manufacturer","specifications","availability","packaging","metadata"] hitsPerPage: 50 page: 0"
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Dispatching Library tool to find: "Ultra-low Iq boost regulator for single AA to 3.3 V with Iq <= 2 uA, input start <= 0.9 V, supports 60–120 mA burst loads; small SOT-23-5/6 or 2x2 DFN; candidates like TPS61099 family, LTC3525-3.3, MCP16251/2. Return adjustable or fixed 3.3 V options with enable pin and datasheet link."
Creating search plan for: "Ultra-low Iq boost regulator for single AA to 3.3 V with Iq <= 2 uA, input start <= 0.9 V, supports 60–120 mA burst loads; small SOT-23-5/6 or 2x2 DFN; candidates like TPS61099 family, LTC3525-3.3, MCP16251/2. Return adjustable or fixed 3.3 V options with enable pin and datasheet link. --- MANDATORY search constraints (these MUST be applied to all searches): fieldCategories: ["core","type","manufacturer","specifications","availability","packaging","metadata"] hitsPerPage: 50 page: 0"
Searching: "Boost regulator that starts from ≤0.9 V (single AA), ultra-low quiescent current ≤2 µA, outputs 3.3 V (fixed or adjustable), supports 60–120 mA burst loads, SOT-23-5 or 2×2 DFN package, with EN pin (enable)."
Found 106 results.
Searching: "Ultra-low Iq boost regulator for single AA to 3.3 V with Iq <= 2 uA, input start <= 0.9 V, supports 60–120 mA burst loads; small SOT-23-5/6 or 2x2 DFN; candidates like TPS61099 family, LTC3525-3.3, MCP16251/2. Return adjustable or fixed 3.3 V options with enable pin and datasheet link. --- MANDATORY search constraints (these MUST be applied to all searches): fieldCategories: ["core","type","manufacturer","specifications","availability","packaging","metadata"] hitsPerPage: 50 page: 0"
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Looking for "Quiescent current (no-load) specification" in TPS61099
Looking for "Recommended operating conditions input voltage range or startup voltage" in TPS61099
Looking for "Peak switch current or inductor current limit" in TPS61099
Looking for "EN pin description and logic thresholds" in TPS61099
Looking for "Quiescent current (no-load) specification" in 20005173B.pdf
Looking for "Peak switch current or inductor current limit" in tps61322.pdf
Looking for "Recommended operating conditions input voltage range or startup voltage" in tps61322.pdf
Looking for "Quiescent current (no-load) specification" in tps61322.pdf
Looking for "Recommended operating conditions input voltage range or startup voltage" in 20005173B.pdf
Looking for "Peak switch current or inductor current limit" in 20005173B.pdf
Looking for "EN pin description and logic thresholds" in 20005173B.pdf
Looking for "EN pin description and logic thresholds" in tps61322.pdf
Looking for "Quiescent current (no-load) specification" in tps61097a-33.pdf
Looking for "EN pin description and logic thresholds" in tps61097a-33.pdf
Looking for "Recommended operating conditions input voltage range or startup voltage" in tps61097a-33.pdf
Looking for "Peak switch current or inductor current limit" in tps61097a-33.pdf
Table
| Part | UID | MPN | Package | Datasheet |
|---|---|---|---|---|
| TPS61097A-33DBVT | db4efdec-d5ae-48aa-a8a8-cea7c3ee5bb3 | TPS61097A-33DBVT | SOT‑23‑5 (SOT‑753) | Datasheet |
| TPS613221ADBV | 10249418-8e88-4c98-8c93-a7c7e2340d4c | TPS613221ADBV | SOT‑23‑5 | Datasheet |
| TPS61099DRV | ac0a6360-fd67-4138-98b6-36d34b2cbd03 | TPS61099DRV | WSON‑6 2x2 mm | Datasheet |
| MCP16251T-I/CH | 8327c70a-03d3-438e-b7ef-b42d638fda9b | MCP16251T-I/CH | SOT‑23‑6 | Datasheet |
- TPS61097A-33DBVT (best ultra‑low Iq with EN): Quiescent current IQ = 2–4 µA (min/typ); VIN operating range 0.9–5.5 V; has EN pin; switch current limit (typ) 400 mA. Source: TI datasheet.
- TPS613221ADBV (best burst headroom from 0.9 V, fixed 3.3 V): VIN 0.9–5.5 V; startup ~0.87 V (typ); peak current limit family options up to >1 A; no dedicated EN pin (uses external true-shutdown). IQ = 6.5 µA typ. Source: TI datasheet.
- TPS61099DRV (adjustable, very compact, low-power family): Adjustable 1.8–5.5 V output, 2x2 mm WSON. I can verify Iq/startup in the datasheet if you choose this family.
- MCP16251T-I/CH (simple adjustable option with EN): No‑load input current 14–25 µA; startup ~0.82 V (typ at 3.3 V/1 mA), runs down to ~0.35 V after start; EN high ~70% VIN. Source: Microchip datasheet.
- Prioritize TPS61097A-33DBVT if minimizing sleep drain is critical and your NRF24L01+ burst current is modest (tens of mA). It has verified ultra‑low Iq and an EN pin.
- Choose TPS613221ADBV if you need higher burst current margin (>~100 mA) directly from a single AA with 0.9 V start, and you can accept higher Iq and no EN pin.
- Prefer TPS61099DRV if you want adjustable 3.3 V in a tiny package and likely very low Iq; I will confirm exact Iq/startup before locking in.
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