Analog Devices LT3991IDD DC DC Switching Regulators
Buck Switching Regulator IC Positive Adjustable 1.19V 1 Output 1.2A 10-WFDFN Exposed Pad
Same model may have multiple batches, images only for reference.
Manufacturer
Part Number (MPN)
LT3991IDD
Detailed Description
IC REG BUCK ADJ 1.2A 10DFN
Package
10-WFDFN Exposed Pad
Key Features
Package / Case: 10-WFDFN Exposed Pad; Mounting Type: Surface Mount
Lifecycle Status
Obsolete
RoHS State
RoHS Compliant
Datasheet
LT3991IDD Datasheet
Quick Jump:
Technical Specifications
Analog Devices LT3991IDD DC DC Switching Regulators technical specifications.
General
Package / Case
10-WFDFN Exposed Pad
Mounting Type
Surface Mount
Operating Temperature
-40°C ~ 125°C (TJ)
Lifecycle Status
Obsolete
Output Type
Adjustable
Max Input Voltage
55V
Output Current
1.2A
Switching Frequency
200kHz ~ 2MHz
Number of Outputs
1
Topology
Buck
Alternate Parts Comparison (LT3991IDD vs LT3684EDD#TRPBF vs LT8609AEDDM#PBF vs LT3686IDD#TRPBF)
Side-by-side technical parameter comparison of related primary models in this product family.
| This Part | Alternate Parts | Alternate Parts | Alternate Parts | |
|---|---|---|---|---|
| Package / Case | 10-WFDFN Exposed Pad | 10-WFDFN Exposed Pad | 10-WFDFN Exposed Pad | 10-WFDFN Exposed Pad |
| Operating Temperature | -40°C ~ 125°C (TJ) | -40°C ~ 85°C (TA) | -40°C ~ 125°C (TJ) | -40°C ~ 125°C (TJ) |
| Switching Frequency | 200kHz ~ 2MHz | 300kHz ~ 3MHz | 200kHz ~ 2.2MHz | 300kHz ~ 2.5MHz |
| Max Input Voltage | 55V | 34V | 42V | 37V |
| Min Input Voltage | 4.3V | 3.6V | 3V | 3.6V |
| Output Configuration | Positive | Positive | Positive | Positive |
| Output Current | 1.2A | 2A | 3A | 1.2A |
| Output Type | Adjustable | Adjustable | Adjustable | Adjustable |
| Output Voltage | 1.19V | 1.265V | 0.782V | 0.8V |
| Synchronous Rectifier | No | No | Yes | No |
| Topology | Buck | Buck | Buck | Buck |
| Voltage Output Max | 30V | 20V | 42V | 37V |
| Action |
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LT3686IDD#TRPBFAnalog DevicesBuck Switching Regulator IC Positive Adjustable 0.8V 1 Output 1.2A 10-WFDFN Exposed Pad