L6910 STMicroelectronics, L6910 Datasheet - Page 18

• Manufacturer Part Number: L6910
• Description: IC PWM BUCK BST VM 16SOIC
• Manufacturer: STMicroelectronics

Specifications of L6910

• Pwm Type: Voltage Mode
• Number Of Outputs: 1
• Frequency - Max: 230kHz
• Duty Cycle: 100%
• Voltage - Supply: 5 V ~ 12 V
• Buck: Yes
• Boost: Yes
• Flyback: No
• Inverting: No
• Doubler: No
• Divider: No
• Cuk: No
• Isolated: No
• Operating Temperature: -40°C ~ 150°C
• Package / Case: 16-SOIC (3.9mm Width)
• Frequency-max: 230kHz
• Output Voltage: 4 V
• Mounting Style: SMD/SMT
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Other names: 497-3656-5; 497-4220-5; 497-4220-5

L6910 - L6910A
8
A specific Demo Board has been realized for the HTSSOP16 package. The features are the same of the 15A
Demo Board previously described but thermal performance are improved. The PGOOD signal is used as a logic
level and it's been pulled up to V
In case of input voltage higher than 7V (PGOOD Pin Maximum Absolute Rating) a 5V reference is re-
quired.
Figure 21. 15A HTSSOP16 Demo Board Schematic
Table 11. Part List
18/29
15A HTSSOP16 DEMO BOARD DESCRIPTION
Reference
GNDRef
GNDCC
GNDIN
Ref IN
C9,C10
C1,C3
VCC
VIN
R10
R11
R12
R13
R14
R15
R16
R1
R2
R3
R4
R5
R6
R7
R8
R9
C16
S1
S2
S3
S4
S5
F1
C17
C21
G2
R10
R11
R12
R13
R6
1K Ohm
IN
R1
4.7K
14K
6.98K
2.61K
10K
2.7K
10 Ohm
560 Ohm
1.74K
because there's no other appropriate voltage available on the demo board.
C15
EAREF
330uF - 6.3V
D1
Description
100uF 20V
VCC
GND
OSC
SS
L1
16
4
2
9
0 Ohm
0 Ohm
0 Ohm
8
N.C
N.C
N.C
13
6
L6910A
5% 125mW
5% 125mW
5% 125mW
5% 125mW
5% 125mW
BOOT
C19
5% 125mW
5% 125mW
5% 125mW
5% 125mW
5% 125mW
U1
C18
R7
3
R5
OCSET
7
12
11
15
14
10
C14
1
VREF
PGND
PHASE
UGATE
LGATE
PGOOD
C13
R15
R14
R4
Q1-3
Q4-6
Vout
0.9
1.2
1.5
1.8
2.5
3.3
5.0
R3
Manufacturer
20SA100M
6TPB330M
POSCAP
NEOHM
NEOHM
NEOHM
NEOHM
NEOHM
NEOHM
NEOHM
NEOHM
NEOHM
NEOHM
NEOHM
NEOHM
NEOHM
C20
OSCON
D2
Open Open
Open
Open Open
Open Open
Open Open
ON
ON
S2 S3 S4 S5
R16
C23
Open
R8
ON
ON
Open Open
Open Open
Open Open
Open Open
Open
ON
ON
L2
R9
C22
Open
ON
ON
C4
C1- C3
-11
C12
RADIAL 10X10.5
SMD 0805
SMD 0805
SMD 0805
SMD 0805
SMD 0805
SMD 0805
SMD 0805
SMD 0805
SMD 0805
SMD 0805
R2
SMD 0805
SMD 0805
SMD 0805
SMD7343
VOUT
PWRGD
+Vref
GNDOUT
GNDref