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Integrated FET 42V, 5A Synchronous Buck Regulator with Internal Compensation and Programmable Frequency

Package Information

Pitch (mm) 0.65
Lead Count (#) 16
Pkg. Type TSSOP-EP
Pkg. Dimensions (mm) 5.00 x 4.39 x 0.00
Pkg. Code MML

Environmental & Export Classifications

Moisture Sensitivity Level (MSL) 3
Pb (Lead) Free Yes
ECCN (US) EAR99
RoHS (RAA211450GSP#HA0) Download
HTS (US)

Product Attributes

Longevity 0000 Jul
Pkg. Type TSSOP-EP
Lead Count (#) 16
Carrier Type Reel
Moisture Sensitivity Level (MSL) 3
Pitch (mm) 0.7
Pkg. Dimensions (mm) 5.0 x 4.4 x 0.00
Pb (Lead) Free Yes
Pb Free Category Pb-Free 100% Matte Tin Plate w/Anneal-e3
Temp. Range -40 to +125°C
Country of Assembly Taiwan
Country of Wafer Fabrication Japan
Price (USD) | 1ku 2.00096
Control Type Peak Current Mode
IQ [Rail 1] (µA) 90
Input Voltage (Max) [Rail 1] (V) 42 - 42
Input Voltage (Min) [Rail 1] (V) 4.5
Length (mm) 5
MOQ 2500
Output Current (Max) [Rail 1] (A) 5
Output Voltage (Max) [Rail 1] (V) 36
Output Voltage (Min) [Rail 1] (V) 0.8
Outputs (#) 1
Parametric Category Buck Regulators (Integrated FETs)
Peak Efficiency (%) 90
Power-On Reset No
Qualification Level Standard
SYNCH Capability No
Simulation Model Available iSim
Switching Frequency Range (Typical) (kHz) 200 - 800
Thickness (mm) 0
Topology [Rail 1] Buck
Width (mm) 4.4

Description

The RAA211450 is a DC/DC synchronous step-down (Buck) regulator that supports a 4.5V to 42V input voltage range and adjustable output voltage. It can deliver up to continuous 5A of continuous output current with premium load and line regulation performance.

The RAA211450 uses peak-current mode control architecture. Its PWM switching frequency is programmable to provide the best trade-off between transient response and efficiency. It also supports PFM operation and DEM to maximize light load efficiency, in addition to an external bias LDO input to further reduce power dissipation across the load range. The regulator also has an internal loop compensation circuit to reduce the external component count and BOM cost.

The RAA211450 provides useful functions such as internal or programmable soft-start and power good indicator. For safe operation, the RAA211450 also offers protection features such as cycle-by-cycle peak and valley current limit, input voltage UVLO, output voltage undervoltage (short-circuit) protection, and thermal shutdown.