TLD5085EJ Infineon Technologies, TLD5085EJ Datasheet - Page 10

• Manufacturer Part Number: TLD5085EJ
• Description: IC DC-DC CONV STP-DWN 1.8A DSO8
• Manufacturer: Infineon Technologies

Specifications of TLD5085EJ

• Constant Current: Yes
• Constant Voltage: Yes
• Topology: PWM, Step-Down (Buck), Switched Capacitor (Charge Pump)
• Number Of Outputs: 1
• Internal Driver: *
• Type - Primary: Automotive
• Frequency: 370kHz
• Voltage - Supply: 4.75 V ~ 45 V
• Voltage - Output: 0.6 V ~ 16 V
• Mounting Type: Surface Mount
• Package / Case: DSO-8
• Current - Output / Channel: 1.8A
• Internal Switch(s): *
• Efficiency: *
• Packages: PG-DSO-8
• Vs (min): 4.75 V
• Vs (max): 45.0 V
• Vq (max): -
• Iq (max): 1,800.0 mA
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Operating Temperature: -
• Lead Free Status / Rohs Status: Details

7
7.1
The oscillator turns on the power-switch with a constant frequency while the buck regulating circuit turns the
power-switch off in every cycle with an appropriate time gap depending on the output and input voltage.
The internal sawtooth signal used for the PWM generation has an amplitude proportional to the input supply
voltage (feedforward).
7.2
Electrical Characteristics: Buck Regulator
V
Pos.
7.2.1
Datasheet
S
= 6.0 V to 40 V,
Parameter
Oscillator frequency
Oscillator
Description
Electrical Characteristics Oscillator
T
j
= -40 °C to +150 °C, all voltages with respect to ground (unless otherwise specified)
Symbol
f
osc
10
Min.
330
Limit Values
370
Typ.
Max.
420
kHz
Unit
Rev. 1.1, 2009-12-16
Conditions
–
TLD5085EJ
Oscillator