A5974DTR STMicroelectronics, A5974DTR Datasheet - Page 21

• Manufacturer Part Number: A5974DTR
• Description: IC BUCK ADJ 2.5A 8SOIC
• Manufacturer: STMicroelectronics
• Series: -r
• Type: Step-Down (Buck)r

Specifications of A5974DTR

• Internal Switch(s): -
• Synchronous Rectifier: -
• Number Of Outputs: -
• Voltage - Output: 1.235 V ~ 35 V
• Current - Output: 2.5A
• Frequency - Switching: 250kHz
• Voltage - Input: 4 V ~ 36 V
• Operating Temperature: -
• Mounting Type: *
• Package / Case: *
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant
• Other names: 497-11424-2

STLDC08
The STLDC08 LED driver step-up controller is optimized to operate from one
or two NiCd/NiMH or alkaline cells. The IC is able to drive an external MOSFET
(N-channel) enabling it for use with wide power levels. Hysteretic control eliminates
the need for small signal control loop compensation. The IC integrates an FET
driver for a precise PWM dimming. STLDC08 comes in a DFN10 (3 x 3 mm)
package.
Key features
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Application example
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Minimum input voltage range: 0.8 to 3.6 V
20 V overvoltage protection
Drives N-channel MOSFET or NPN bipolar transistor
No control loop compensation required
FET driver for very precise PWM dimming
Operates also using R
-
+
DS(on)
Vbat
EN/PWM
V5
as sense resistor
2VCC
VCC
STLDC08
GND
DRV
PWMOUT
SENSE
VOUT
FB
Key benefits
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Flexible solution to cover different
power levels
Minimized number of external
components for compact solutions
High efficiency
Brightness control using inhibit pin
DNF10L (3 x 3 mm)
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