LM2754SQEV National Semiconductor, LM2754SQEV Datasheet - Page 6

• Manufacturer Part Number: LM2754SQEV
• Description: BOARD EVALUATION LM2754SQ
• Manufacturer: National Semiconductor
• Series: PowerWise®r

Specifications of LM2754SQEV

• Current - Output / Channel: 800mA
• Outputs And Type: 4, Non-Isolated
• Voltage - Output: 5.1V
• Features: Charge Pump
• Voltage - Input: 2.7 ~ 5.5V
• Utilized Ic / Part: LM2754
• Core Chip: LM2754
• Topology: Charge Pump
• No. Of Outputs: 1
• Output Current: 800mA
• Input Voltage: 2.8V To 5.5V
• Kit Contents: Board
• Development Tool Type: Hardware - Eval/Demo Board
• Lead Free Status / RoHS Status: Not applicable / Not applicable

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Typical Performance Characteristics
3.6V, V
capacitors (MLCC’s). (Continued)
EN
V
CH1 (TOP): V
CH2 (BOTTOM): I
Time scale: 1ms/Div
V
CH1 (TOP): V
CH2 (MIDDLE): V
CH3 (BOTTOM): I
Time scale: 400µs/Div
IN
IN
= V
= 3.6V, Load = 700mA (Flash), LED = PWF1
= 3.6V, Load = 200mA/800mA (Torch/Flash), LED = PWF1
IN
, V
Flash Mode with TX Pulse
T/F
Torch to Flash Mode
TX
IN
; Scale: 1V/Div, DC Coupled
; Scale: 1V/Div, DC Coupled
= V
OUT
LED
IN
Rising Edge
; Scale: 200mA/Div
TX
; Scale: 200mA/Div
; Scale: 1V/Div, DC Coupled
= V
SEL
= 0V, C
IN
20202810
20202812
= C
1
= C
2
= 2.2µF, C
Unless otherwise specified: T
6
OUT
= 4.7µF. Capacitors are low-ESR multi-layer ceramic
V
CH1 (TOP): V
CH2 (MIDDLE): V
CH3 (BOTTOM): I
Time scale: 100ms/Div
V
CH1 (TOP): V
CH2 (MIDDLE): V
CH3 (BOTTOM): I
Time scale: 100µs/Div
IN
IN
= 3.6V, Load = 200mA/800mA (Torch/Flash), LED = PWF1
= 3.6V, Load = 800mA/200mA (Flash/Torch), LED = PWF1
Torch to Flash Mode
Flash to Torch Mode
IN
IN
; Scale: 1V/Div, DC Coupled
; Scale: 1V/Div, DC Coupled
OUT
OUT
IN
IN
Falling Edge
; Scale: 200mA/Div
; Scale: 200mA/Div
A
; Scale: 1V/Div, DC Coupled
; Scale: 1V/Div, DC Coupled
= 25˚C, V
Dx
= 1V, V
20202811
20202813
(IN, INSW)
=