PRODUCT DATASHEET
AAT2610
7-Channel PMU for Digital Still Cameras
Electrical Characteristics1
Unless otherwise noted VPVSU=VPVM= VPVSD1= VPVSD2 =3.6V, TA=-40°C to +85°C.
Symbol Description Conditions
Min
Typ
Max
Units
Main DC-DC Buck (Step-Down) or Boost (Step-Up) Converter
Main Output Step-Up Voltage Range
VSUSD = VPVSU
3.0
1.0
5.5
VIN
V
V
VOUT(M)
VSUSD = GND; VPVM must be greater than
VOUT(M)
Main Output Step-Down Voltage Range
VFBM
FBM Reference Voltage
Step-Up Mode Current Limit
Step-Down Mode Current Limit
TA = 25°C
VSUSD = VPVSU
VSUSD = GND
0.59
1.5
0.7
0.60
1.75
0.85
0.61
V
A
A
ILIMIT(M)
Step-Up Light Load Mode Current
Threshold
Step-Down Light Load Mode Current
Threshold
Step-Up Maximum Duty Cycle
Step-Down Maximum Duty Cycle
FBM Pin Leakage Current
LXM Pin Leakage Current
N-Channel
VSUSD = VPVSU
VSUSD = GND
200
mA
mA
%
IMODE(M)
100
95
1.6 ≤ VIN ≤ 5.0V, VSUSD = VPVSU
1.6 ≤ VIN ≤ 5.0V, VSUSD = GND
VFBSU = 0.6V
80
100
-100
DMAX(M)
ILEAK(FBM)
ILEAK(LXM)
RDSON
0.01
0.1
75
+100
5
nA
μA
mΩ
mΩ
VLXSU = VOUT(M) = 5.5V
P-Channel
120
Step-Up Mode N-Channel Turn-Off
Current
Step-Down Mode N-Channel Turn-Off
Current
VSUSD = VPVSU
VSUSD = GND
20
20
IOFF(M)
mA
tSOFT-START
TSEQ
ILEAK(SEQ)
VSEQ(L)
Soft-Start Interval
2,048
10,000
0.1
OSC Cyc
OSC Cyc
μA
Sequencing Time Delay
SEQ Pin Leakage Current
SEQ Low Output Voltage
SD1/SD2 Regulation to VSEQ(L) Transition
EN_SU = VPVSU, FBSU = 1.5V
0.1mA into SEQ pin
1
0.1
0.01
V
SD1/2 DC-DC Step-Down (Buck) Converters
SD1/SD2 Step-Down Output Voltage
VOUT(SD1/SD2)
Range
0.60
VIN
V
VFB(SD1/SD2)
FBSD1, FBSD2 Reference Voltage
P-Channel Current Limit
TA = 25°C
0.59
0.6
0.60
0.7
0.61
V
A
ILIMIT(SD1/SD2)
IMODE(SD1/SD2) SD1 Light Load Mode Current Threshold
DMAX(SD1/SD2) Maximum Duty Cycle
ILEAK(FBSD1/SD2) FBSD1, FBSD2 Pin Leakage Current
ILEAK(LXSD1/SD2) LXSD1, LXSD2 Pin Leakage Current
100
mA
%
nA
1.6 ≤ VPVSU ≤ 5.0V, VSD1/2 = 0.60V
VFBSD1/SD2 = 0.6V
VLXSD1/SD2 = 0 to 3.6V
100
-100
0.01
0.1
+100
5
μA
N-Channel
P-Channel
N-Channel
P-Channel
N-Channel Turn-Off Current
Soft-Start Interval
500
650
250
450
20
mΩ
mΩ
mΩ
mΩ
mA
OSC Cyc
RDSON(SD1)
RDSON(SD2)
IOFF
TSOFTSTART
2,048
1. The AAT2610 is guaranteed to meet performance specifications over the -40°C to +85°C operating temperature range and is assured by design, characterization, and correla-
tion with statistical process controls.
w w w . a n a l o g i c t e c h . c o m
8
2610.2008.11.1.1
ANALOGICTECH [ ADVANCED ANALOGIC TECHNOLOGIES ]
