diodes 1 MF C3 in the charge pump (D3 and D4). 1 MF D2 Excellent voltage regulation is U1 MBRM120 TPS62007DGS L1 achieved for light loads on the 5VIN 1 V P 10 10 MH (negative) charge-pump output. 2 VIN GNL 9 V 3 C 8 OUT1 The circuit in Fig. 8 is a charge C1 C2 GND EN C4 pump that boosts the V output 4.7
