LM2754SQEV National Semiconductor, LM2754SQEV Datasheet - Page 7

• 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

Typical Performance Characteristics
3.6V, V
capacitors (MLCC’s). (Continued)
EN
V
CH1 (MID-TOP): V
CH2 (MID-BOTTOM): V
CH3 (TOP): V
CH4 (BOTTOM): I
Time scale: 1µs/Div
V
CH1 (TOP): V
CH4 (MIDDLE): I
CH3 (BOTTOM): I
Time scale: 100ms/Div
IN
IN
= V
= Li-Ion Battery at 3.7V, Load = 400mA, LED = PWF1
= 3.6V, Load = 400mA, LED = PWF1
Startup and Shutdown Response
IN
, V
Battery Ripple, Gain = 1.5x
T/F
Torch Mode (400mA)
IN
OUT
; Scale: 1V/Div, DC Coupled
= V
IN
; Scale: 1V/Div, DC Coupled
IN
OUT
OUT
; Scale: 200mA/Div
; Scale: 500mA/Div
TX
; Scale: 200mA/Div
; Scale: 20mV/Div, AC Coupled
IN
= V
; Scale: 50mV/Div, AC Coupled
SEL
= 0V, C
IN
20202814
20202816
= C
1
= C
2
= 2.2µF, C
Unless otherwise specified: T
7
OUT
= 4.7µF. Capacitors are low-ESR multi-layer ceramic
V
CH1 (MID-TOP): V
CH2 (MID-BOTTOM): V
CH3 (TOP): V
CH4 (BOTTOM): I
Time scale: 1µs/Div
IN
= Li-Ion Battery at 3.7V, Load = 400mA, LED = PWF1
Battery Ripple, Gain = 2x
IN
; Scale: 1V/Div, DC Coupled
IN
OUT
; Scale: 500mA/Div
A
; Scale: 20mV/Div, AC Coupled
IN
= 25˚C, V
; Scale: 50mV/Div, AC Coupled
Dx
= 1V, V
20202815
(IN, INSW)
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=