lm2612abpx National Semiconductor Corporation, lm2612abpx Datasheet - Page 10

• Manufacturer Part Number: lm2612abpx
• Description: 400ma Sub-miniature, Programmable, Step-down Dc-dc Converter For Ultra Low-voltage Circuits
• Manufacturer: National Semiconductor Corporation

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Typical Operating Characteristics
µH, unless otherwise noted. (Continued)
A: INDUCTOR CURRENT, 500mA/div
B: SW PIN, 5V/div
C: V
D: LOAD, 20mA to 200mA, 200mA/div
A: INDUCTOR CURRENT, 500mA/div
B: SW PIN, 2V/div
C: V
D: EN, 5V/div
OUT
OUT
, 50mV/div, AC COUPLED
, 1V/div
Load Transient Response (PWM Mode)
(V
Shutdown Response (PWM Mode)
OUT
Efficiency vs Output Current
= 1.8V, PFM Mode, No Diode)
20007140
20007141
20007136
LM2612ABP, Circuit of Figure 1, V
10
A: INDUCTOR CURRENT, 500mA/div
B: SW PIN, 5V/div
C: V
D: LOAD, 10mA to 100mA, 100mA/div
A: INDUCTOR CURRENT, 500mA/div
B: SW PIN, 2V/div
C: V
D: EN, 5V/div
OUT
OUT
, 50mV/div, AC COUPLED
, 1V/div
Load Transient Response (PFM Mode)
Switching Frquency vs Temperature
Shutdown Response (PFM Mode)
(PWM Mode)
IN
= 3.6V, T
A
= 25˚C, L
20007146
20007145
20007139
1
= 10