IC manufacturers Texas Instruments

IC manufacturers (96)

Texas Instruments LM53635-Q1 | Demoboard TIDA-01055

2.5/3.5A, 36 V Synchronous, 2.1MHz, Automotive Step Down DC-DC Converter

Overview

TopologyBuck Converter
Input voltage3.9-36 V
Switching frequency1850-2350 kHz
Output 15.2 V / 3.5 A
IC revisionA

Description

The LM53625-Q1/LM53635-Q1 synchronous buck regulator is optimized for automotive applications, providing an output voltage of 5 V, 3.3 V, or an adjustable output. Advanced high-speed circuitry allows the LM53625-Q1/LM53635-Q1 to regulate from an input of 18 V to an output of 3.3 V at a fixed frequency of 2.1 MHz. Innovative architecture allows this device to regulate a 3.3-V output from an input voltage of only 3.55 V. All aspects of the LM53625-Q1/LM53635-Q1 are optimized for automotive and performance-driven industrial customers. An input voltage range up to 36 V, with transient tolerance up to 42 V, eases input surge protection design. The automotive-qualified Hotrod QFN package with wettable flanks reduces parasitic inductance and resistance while increasing efficiency, minimizing switch node ringing, and dramatically lowering electromagnetic interference (EMI). An open-drain reset output, with built-in filtering and delay, provides a true indication of system status. This feature negates the requirement for an additional supervisory component, saving cost and board space. Seamless transition between PWM and PFM modes and low quiescent current (only 15 µA for the 3.3 V option) ensure high efficiency and superior transient responses at all loads.

Features

  • AEC-Q100 Automotive Qualified:
  • Device Temperature Grade 1: –40°C to +125°C Ambient Operating Temperature Range
  • Device HBM Classification Level 2
  • Device CDM Classification Level C6
  • –40°C to +150°C Junction Temperature Range
  • 15-µA Quiescent Current at no Load (Typical) with 3.3-V Output
  • 4 mm × 5 mm, 0.5-mm Pitch VQFN Package With Wettable Flanks and 0.6-mm VIN Spacing
  • Low EMI and Switch Noise
  • Spread Spectrum Option
  • External Frequency Synchronization
  • RESET Output with Internal Filter and 3-ms Release Timer
  • Pin-Selectable Forced PWM Mode
  • Built-In Compensation, Soft Start, Current Limit, Thermal Shutdown, and UVLO
  • 0.6-V Dropout at 3.5 A at 105°C TA
  • ±1% Output Voltage Tolerance (–40°C to 125°C TJ)
  • Available With Fixed 5-V, 3.3-V or Adjustable Output

Typical applications

  • Battery-Powered Applications
  • Automotive Telematics, In-Dash Instrumentation, Navigation Systems

Products

Order Code Data­sheet Simu­lation Downloads Product seriesApplicationPCB/Cable/PanelModularityWire SectionλDom typ.
(nm)
Emitting ColorλPeak typ.
(nm)
IV typ.
(mcd)
VF typ.
(V)
Chip Technology50% typ.
(°)
CTol. CVR
(V (DC))
SizeOperating TemperatureQ
(%)
RISOCeramic TypeL
(mm)
W
(mm)
Fl
(mm)
L
(µH)
ISAT
(A)
fres
(MHz)
MountTiØ ID
(mm)
Ø OD
(mm)
Qty.
(pcs)
PinsRowsH
(mm)
GenderTypeIR
(A)
Packaging Samples
691213710002SPEC
6 files WR-TBL Series 213 - 5.00 mm Horiz.l Entry Modular Rising Cage Clamp PCB Yes 26 to 16 (AWG) 0.5 to 1.5 (mm²) -40 °C up to +105 °C 10 THT 2 Horizontal 10 Box
744025006SPEC
8 files WE-TPC SMT Tiny Power Inductor 2828 -40 °C up to +125 °C 2.8 2.8 6.8 1.3 59 SMT 550 2 2.8 1.1
744031680SPEC
8 files WE-TPC SMT Tiny Power Inductor 3816 -40 °C up to +125 °C 3.8 3.8 68 0.22 12 SMT 1000 2 1.65 0.32
150060RS75000SPEC
25 files WL-SMCW SMT Mono-color Chip LED Waterclear 625 Red 630 250 2 AlInGaP 140 0603 -40 °C up to +85 °C 1.6 0.8 SMT 4000 0.7 Tape and Reel
885012006057SPEC
8 files WCAP-CSGP MLCCs 50 V(DC)100 pF ±5% 50 0603 -55 °C up to +125 °C 100010 GΩ NP0 Class I 1.6 0.8 0.4 4000 0.8 7" Tape & Reel
9774050360RSPEC
6 files WA-SMSI SMT Steel Spacer with internal Thread M3 -55 °C up to +150 °C 5 M3 4.2 6 650 Tape and Reel
61300211121SPEC
6 files WR-PHD 2.54 mm THT Pin Header -40 °C up to +105 °C1000 MΩ 5.08 THT 2 Single Pin Header Straight 3 Bag
61300311121SPEC
6 files WR-PHD 2.54 mm THT Pin Header -40 °C up to +105 °C1000 MΩ 7.62 THT 3 Single Pin Header Straight 3 Bag
Samples
Order Code Data­sheet Simu­lation Downloads Product seriesApplicationPCB/Cable/PanelModularityWire SectionλDom typ.
(nm)
Emitting ColorλPeak typ.
(nm)
IV typ.
(mcd)
VF typ.
(V)
Chip Technology50% typ.
(°)
CTol. CVR
(V (DC))
SizeOperating TemperatureQ
(%)
RISOCeramic TypeL
(mm)
W
(mm)
Fl
(mm)
L
(µH)
ISAT
(A)
fres
(MHz)
MountTiØ ID
(mm)
Ø OD
(mm)
Qty.
(pcs)
PinsRowsH
(mm)
GenderTypeIR
(A)
Packaging Samples