L6726A STMicroelectronics, L6726A Datasheet - Page 31

IC CTRLR PWM 1PHASE SO-8

L6726A

Manufacturer Part Number
L6726A
Description
IC CTRLR PWM 1PHASE SO-8
Manufacturer
STMicroelectronics
Type
Step-Down (Buck)r
Datasheet

Specifications of L6726A

Internal Switch(s)
No
Synchronous Rectifier
No
Number Of Outputs
1
Voltage - Output
Adj to 0.8V
Frequency - Switching
270kHz
Voltage - Input
1.5 ~ 12 V
Operating Temperature
-20°C ~ 85°C
Mounting Type
Surface Mount
Package / Case
8-SOIC (3.9mm Width)
Output Current
1.5 A
Input Voltage
4.1 V to 13.2 V
Operating Temperature Range
- 40 C to + 150 C
Mounting Style
SMD/SMT
For Use With
497-9046 - BOARD EVAL BASED ON L6726A497-6364 - BOARD DEMO FOR TS4995EIJT497-6259 - BOARD EVAL 1PH STPDN CONV L6726A
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Current - Output
-
Power - Output
-
Lead Free Status / Rohs Status
Lead free / RoHS Compliant

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L6726A
11.1.2
11.1.3
11.1.4
11.1.5
Power output (VOUT)
This is the output voltage of the power conversion. The output voltage is programmed to
1.25 V. It can be changed by replacing R13 (adjusting of compensation network may be
needed). Adding R18 allows to adjust OCP threshold.
IC additional supply (VCC)
The controller can be supplied separately from the power conversion through VCC input. In
this case, to separate VCC from VIN, R16 resistor must be removed.
Test points
The following test points are provided to allow easy probing of important signals:
Demonstration board efficiency
Figure 21. 5 A demonstration board efficiency
COMP: output of the error amplifier;
FB: inverting input of the error amplifier;
PH: Phase pin of the device;
LG: Low-side gate pin of the device;
UG: High-side gate pin of the device.
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Doc ID 12754 Rev 4
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Output Current [A]
3
Vin = 12V, Vout = 1.25V
Vin = 5V, Vout = 1.25V
Vin = 12V, Vout = 2.5V
Vin = 5V, Vout = 2.5V
4
5 A demonstration board
5
6
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