A5974DTR STMicroelectronics, A5974DTR Datasheet - Page 34

• 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

STBB1XX
The STBB1XX is a fixed-frequency, high-efficiency, buck-boost DC-DC converter
able to provide output voltages ranging from 1.2 V to 5.5 V and input voltages from
2.0 V to 5.5 V. The device can operate with input voltages higher than, equal to,
or lower than the output voltage making the product suitable for single lithium-ion,
multicell alkaline or NiMH applications where the output voltage is within the battery
voltage range.
Key features
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Application example
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Operating input voltage range from 2.0 V to 5.5 V
2% DC feedback voltage tolerance
Synchronous rectification
Shutdown function
1.5 MHz switching frequency
Power save mode at light load
Typical efficiency: > 94 %
1 A output current capability
Shutdown current < 1 μA
V IN
VIN
VINA
EN
MODE/SYN
SW1
GND PGND
STBB1XX
SW2
VOUT
FB
LED
Key benefits
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V OUT
Minimum number of external
components
MHz frequency allows the use of tiny
external components
DNF10 (3 x 3 mm)