LT1306_15 Datasheet, PDF (14/16 Pages) Linear Technology – Synchronous, Fixed Frequency Step-Up DC/DC Converter

LT1306
TYPICAL APPLICATIO S
2V
TO 3V
2-Cell NiMH to 3.3V Output
D1
L1
4.7µH
C1
1µF
2V/500kHz ^VIN
S/S
SW CAP
OUT
C_IN1
+
0.1µF
CERAMIC
C_IN2
22µF
LT1306
FB
V_C
GND
R3
95k
C_P
39pF
C_Z
5.6nF
R1
412k
+
R2
249k
1306 F09
3.3V
1A
C_O
220µF
C_IN1: AVX TAJC226M010
C_O1: AVX TPSE227M010R0100
C1: AVX TAJA105K020
D1: CMDSH-3
L1: LQN6C4R7
Efficiency
90
V_O = 3.3V
L1 = 4.7µH
85
80
V_IN = 3V
V_IN = 2.5V
75
V_IN = 1.8V
70
65
60
1
10
100
LOAD CURRENT (mA)
1000 2000
1306 F09a
14