PAM2319 Datasheet, PDF (6/13 Pages) Power Analog Micoelectronics – Dual High-Efficiency PWM Step-Down DC-DC Coverter

PAM2319
Dual High-Efficiency PWM Step-Down DC-DC Coverter
Electrical Characteristic
T_A =25^O C, V_IN =3.3V, V_O =1.2V, C_IN =10µF, C_O =10µF, L=1.0µH, unless otherwise noted.
Channel 2
PAR AM ETER
Input Voltage Range
S YM BOL
V_IN
UVLO Threshold
VUVLO
Regulated Feedback Voltage
Reference Voltage Line Regulation
Regulated Output Voltage Accurac y
Peak Inductor Current
Output Voltage Line Regulation
Output Voltage Load Regulation
Quiescent Current
Shutdown Current
Oscillator Frequency
V_FB
ΔV_FB
VO
IPK
LNR
LDR
IQ
I_SD
fOSC
Drain-Sourc e On-State Resistance RDS(O N)
SW Leakage Current
Efficiency
PSM Threshold
EN Threshold High
EN Threshold Low
EN Leak age Current
Soft-start
Over Temperature Protection
OTP Hysteresis
I_LSW
η
ITH
V_EH
V_EL
IEN
T ON
OTP
OTH
Test Conditions
VIN Rising
Hysteresis
V_IN Falling
IO = 100mA
V_IN = 2.7V to 5V, I_O=10mA
IO=0mA to 2000mA
No load
V_EN = 0V
VO = 100%
P MOSFET
N MOSFET
Io= 500mA,VIN=3.3V
Vin=3.3V
From EN2 to Output
MIN TYP
2.7
2.6
250
2
0.588 0.6
0.3
-3
3
0.2
-2
55
0.1
2.5
0.11
0.085
±0.01
87
250
1.5
±0.01
250
150
30
M AX
5.5
2.7
0.612
+3
0.5
2
100
1
1
450
0.3
UNITS
V
V
mV
V
V
%/V
%
A
%/V
%
µA
µA
MHz
Ω
Ω
µA
%
mA
V
V
µA
uS
°C
°C
Power Analog Microelectronics, Inc
www.poweranalog.com
6
12/2011 Rev1.1