LM3500TL-16EV National Semiconductor, LM3500TL-16EV Datasheet - Page 10

• Manufacturer Part Number: LM3500TL-16EV
• Description: BOARD EVALUATION LM3500TL-16
• Manufacturer: National Semiconductor
• Series: PowerWise®r

Specifications of LM3500TL-16EV

• Current - Output / Channel: 20mA
• Outputs And Type: 1, Non-Isolated
• Voltage - Output: 14V
• Features: Shutdown
• Voltage - Input: 2.7 ~ 5.5 V
• Utilized Ic / Part: LM3500
• Core Chip: LM3500
• Topology: Buck
• No. Of Outputs: 1
• Output Voltage: 16V
• Input Voltage: 2.7V To 7V
• Kit Contents: Board
• Development Tool Type: Hardware - Eval/Demo Board
• Lead Free Status / RoHS Status: Not applicable / Not applicable

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LM3500-16, 3 LEDs, R
1) SW, 10V/div, DC
3) I
4) V
T = 250ns/div
3 LEDs, R
1) SHDN, 1V/div, DC
4) I
2) V
T = 200µs/div
V
CONT
L
L
, 100mA/div, DC
IN
, 100mA/div, DC
OUT
, 100mV/div, AC
= 2.7V
, 10/div, DC
LED
= 22Ω, V
LED
IN
= 3.0V
Start-Up: LM3500-21
NMOS R
= 22Ω, V
Typical V
(I
SW
IN
= 300mA)
DSON
= 3.0V
IN
Ripple
vs V
IN
20065768
20065796
20065774
10
3 LEDs, R
1) SHDN, 1V/div, DC
2) I
3) I
T = 100µs/div
LM3500-16, 3 LEDs, R
1) SHDN, 1V/div, DC
2) I
3) I
4) V
T = 1ms/div
L
LED
L
LED
OUT
, 100mA/div, DC
, 100mA/div, DC
, 20mA/div, DC
, 20mA/div, DC
, 10V/div, DC
LED
SHDN Pin Duty Cycle Control Waveforms
= 22Ω, V
PMOS R
IN
LED
= 3.0V
Start-Up: LM3500-16
= 22Ω, V
DSON
IN
vs Temperature
= 3.0V, SHDN frequency = 200Hz
20065771
20065772
20065775