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The LD57100 is a high accuracy voltage regulator, which provides 1 A of current. It is equipped with an NMOS pass transistor, whose gate is biased by a dedicated pin, thus allowing the ultra-low drop performance even at very low input voltages.
It is available in Flip Chip6 (0.8x1.2 mm), maximizing the space saving. This device is stabilized with a small ceramic capacitor on the output. The ultra low drop, low quiescent current and short-circuit protection make the LD57100 suitable for low power battery-operated applications.
An enable logic control function puts the LD57100 in shutdown mode allowing a total current consumption lower than 0.1 µA. Thermal protection is also included.Key Features
- Input voltage from VOUT to 5.5 V
- Input bias supply pin from 3.0 V to 5.5 V
- Ultra low-dropout voltage (40 mV typ. at 1 A load)
- Low ground current (35 μA typ. at no load)
- Output voltage tolerance: ±1% all over temperature range, ±0.5% at 25 °C
- 1 A guaranteed output current
- 50 mV output voltage step available from 0.4 V to 1.8 V
- 100 mV output voltage step available from 1.9 V to 3.6 V
- Adjustable version from 0.5 V to 3.0 V
- Logic-controlled electronic shutdown
- Internal current limit
- Thermal shutdown
- Output active discharge function
- Available in Flip Chip6 (0.8x1.2 mm) package
- Temperature range: -40 °C to 85 °C
Sample & Buy
| Part Number | Package | Packing Type | Output Voltage (V) (nom) | Output Tolerance (typ) | Output Current (A) (nom) | Marketing Status | ECCN (US) | Country of Origin | More info | Approximate Price (US$)* / Qty | Order from ST | Order from Distributors |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| LD57100JR | WLCSP MSL1 | Tape And Reel | - | 0.5 | 1 | Active | EAR99 | - | 0.25 / 1k | Get sample | Check Availability | |
| LD57100J110R | WLCSP MSL1 | Tape And Reel | 1.1 | 0.5 | 1 | Active | EAR99 | - | 0.25 / 1k | No availability of distributors reported, please contact our sales office | ||
| LD57100J120R | WLCSP MSL1 | Tape And Reel | 1.2 | 0.5 | 1 | Preview | EAR99 | - | 0.25 / 1k | No availability of distributors reported, please contact our sales office | ||
| LD57100J105R | WLCSP MSL1 | Tape And Reel | 1.05 | 0.5 | 1 | Preview | EAR99 | - | 0.25 / 1k | No availability of distributors reported, please contact our sales office |
LD57100J110R
Package
WLCSP MSL1Packing Type
Tape And ReelApproximate Price (US$)* / Qty
0.25 / 1kLD57100J120R
Package
WLCSP MSL1Packing Type
Tape And ReelApproximate Price (US$)* / Qty
0.25 / 1kLD57100J105R
Package
WLCSP MSL1Packing Type
Tape And ReelApproximate Price (US$)* / Qty
0.25 / 1k(*) Suggested Resale Price per unit (USD) for BUDGETARY USE ONLY. For quotes, prices in local currency, please contact your local ST Sales Office or our Distributors
Featured Videos
| Part Number | Marketing Status | Package | Grade | RoHS Compliance Grade | Material Declaration** |
|---|---|---|---|---|---|
| LD57100J105R | Preview | WLCSP MSL1 | Industrial | Ecopack2 | |
| LD57100J110R | Active | WLCSP MSL1 | Industrial | Ecopack2 | |
| LD57100J120R | Preview | WLCSP MSL1 | Industrial | Ecopack2 | |
| LD57100JR | Active | WLCSP MSL1 | Industrial | Ecopack2 |
(**) The Material Declaration forms available on st.com may be generic documents based on the most commonly used package within a package family. For this reason, they may not be 100% accurate for a specific device. Please contact our sales support for information on specific devices.
